Re: [MBZ] Servicing Injectors

[MG via Mercedes]

Sounds good, let me know.

Manfred

Kyle Arola via Mercedes wrote:

Awesome!! You are on like donkey kong!
I figure in another month or so I will be ready to rebuild the injectors...

Kyle

On Feb 9, 2017 2:25 PM, "MG via Mercedes" <mercedes@okiebenz.com> wrote:


I have that bottle jack when you want to borrow it. All you'll need is the
shims and nozzles.

As a matter of fact let me know when you are ready to do them and I will
bring it to you as I need to do a set also. We can do them at the same time
and reduce the mess and bother.

Manfred

Kyle Arola via Mercedes wrote:


He is the bottle tester I will be ordering if I choose to do the injectors
myself, which I most likely will.

https://mercedessource.com/store/diesel-fuel-injector-balanc
e-pressure-tester-yes-you-can-do-it-yourself

There is also a kit from him that has the shims and everything, including
monarch nozzles along with video\pdf instructions.

Kyle

On Feb 9, 2017 2:19 AM, "Curley McLain via Mercedes" <
mercedes@okiebenz.com>
wrote:

You do NOT want to put a finger (or any other part of yourself) under a

injector nozzle being tested.  In the same way that you never want to try
to put a hand over a ruptured hydraulic line.  Both are very hazardous to
your life.

I have always sent nozzle holders out for testing/replacement/calibratio
n.
As most of you know, I believe in doing almost everything yourself.  I
WILL
not mess with an injector pump, that needs to be done on a test stand,
and
I will not mess with calibrating injectors, not that the nozzles are so
complicated, but simply because it needs to be done so seldom.  An
injection shop that tests nozzles every day can pick up nuances that I
can't when I only test a set once every 10-15 years.  Right now, I think
it
has been about 15 years since I had nozzles tested or replaced.

I know Kleb and Jaime and some others do their own, and I am not
disparaging them at all.  Both do it more often than I need to. Ymmv

The modified bottle jack tester is the least expensive DIY method.

Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>


February 8, 2017 at 10:19 PM
2000psi + Wow! A lot of pressure to work with.  I've seen some machines
on the market that read the pressure - are they hard to come by?

Thanks!

Larry




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MG via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 7:27 PM
According to 07.1-137 Disassembly, cleaning, assembly and adjustment of
injection nozzles. The pressure is to be 135-143 bar for new and 120 for
used. No more then 5 bar between the highest and lowest but closer is
better. That's 1958 to 2074psi more or less. I think the ones I did a
few
years ago for my 6.5 chevy engine I got to 5 psi between the highest and
lowest. It took a bit.

Manfred



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Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:25 PM
I believe opening pressures should be around 1800 psi/115 bar, and the
set should be within 50 psi or about 3.5 bar of each other.

Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad



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Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:13 PM
I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: "d...@penoff.com" <d...@penoff.com>
Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very
competitive prices, and ships promptly. I just bought a set for the 300D
and they were $137.00 shipped. I got them in about a week's time from
the
Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people
I talked to.

You can disassemble your injectors and clean or replace the nozzles, but
they really need to be recalibrated if you do, especially if you replace
the nozzles.  Insist on having the set matched to 5.0 bar or less, as
the
farther apart they are as far as opening pressures will have a
significant
effect on the smoothness of the idle and efficiency of the engine.

If you've never done this bef

Re: [MBZ] Servicing Injectors

[Kyle Arola via Mercedes]

Awesome!! You are on like donkey kong!
I figure in another month or so I will be ready to rebuild the injectors...

Kyle

On Feb 9, 2017 2:25 PM, "MG via Mercedes" <mercedes@okiebenz.com> wrote:

> I have that bottle jack when you want to borrow it. All you'll need is the
> shims and nozzles.
>
> As a matter of fact let me know when you are ready to do them and I will
> bring it to you as I need to do a set also. We can do them at the same time
> and reduce the mess and bother.
>
> Manfred
>
> Kyle Arola via Mercedes wrote:
>
>> He is the bottle tester I will be ordering if I choose to do the injectors
>> myself, which I most likely will.
>>
>> https://mercedessource.com/store/diesel-fuel-injector-balanc
>> e-pressure-tester-yes-you-can-do-it-yourself
>>
>> There is also a kit from him that has the shims and everything, including
>> monarch nozzles along with video\pdf instructions.
>>
>> Kyle
>>
>> On Feb 9, 2017 2:19 AM, "Curley McLain via Mercedes" <
>> mercedes@okiebenz.com>
>> wrote:
>>
>> You do NOT want to put a finger (or any other part of yourself) under a
>>> injector nozzle being tested.  In the same way that you never want to try
>>> to put a hand over a ruptured hydraulic line.  Both are very hazardous to
>>> your life.
>>>
>>> I have always sent nozzle holders out for testing/replacement/calibratio
>>> n.
>>> As most of you know, I believe in doing almost everything yourself.  I
>>> WILL
>>> not mess with an injector pump, that needs to be done on a test stand,
>>> and
>>> I will not mess with calibrating injectors, not that the nozzles are so
>>> complicated, but simply because it needs to be done so seldom.  An
>>> injection shop that tests nozzles every day can pick up nuances that I
>>> can't when I only test a set once every 10-15 years.  Right now, I think
>>> it
>>> has been about 15 years since I had nozzles tested or replaced.
>>>
>>> I know Kleb and Jaime and some others do their own, and I am not
>>> disparaging them at all.  Both do it more often than I need to. Ymmv
>>>
>>> The modified bottle jack tester is the least expensive DIY method.
>>>
>>> Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>
>>>
>>>> February 8, 2017 at 10:19 PM
>>>> 2000psi + Wow! A lot of pressure to work with.  I've seen some machines
>>>> on the market that read the pressure - are they hard to come by?
>>>>
>>>> Thanks!
>>>>
>>>> Larry
>>>>
>>>>
>>>>
>>>>
>>>> ___
>>>> http://www.okiebenz.com
>>>>
>>>> To search list archives http://www.okiebenz.com/archive/
>>>>
>>>> To Unsubscribe or change delivery options go to:
>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>>
>>>> MG via Mercedes <mailto:mercedes@okiebenz.com>
>>>> February 6, 2017 at 7:27 PM
>>>> According to 07.1-137 Disassembly, cleaning, assembly and adjustment of
>>>> injection nozzles. The pressure is to be 135-143 bar for new and 120 for
>>>> used. No more then 5 bar between the highest and lowest but closer is
>>>> better. That's 1958 to 2074psi more or less. I think the ones I did a
>>>> few
>>>> years ago for my 6.5 chevy engine I got to 5 psi between the highest and
>>>> lowest. It took a bit.
>>>>
>>>> Manfred
>>>>
>>>>
>>>>
>>>> ___
>>>> http://www.okiebenz.com
>>>>
>>>> To search list archives http://www.okiebenz.com/archive/
>>>>
>>>> To Unsubscribe or change delivery options go to:
>>>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>>
>>>> Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
>>>> February 6, 2017 at 2:25 PM
>>>> I believe opening pressures should be around 1800 psi/115 bar, and the
>>>> set should be within 50 psi or about 3.5 bar of each other.
>>>>
>>>> Those are ballpark numbers from my memory, a dangerous thing at times.
>>>>
>>>> -D
>>>>
>>>> Sent from my iPad
>>>>
>>>>
>>>>
>>>> ___
>>>> http://w

Re: [MBZ] Servicing Injectors

[MG via Mercedes]

I have that bottle jack when you want to borrow it. All you'll 
need is the shims and nozzles.


As a matter of fact let me know when you are ready to do them and 
I will bring it to you as I need to do a set also. We can do them 
at the same time and reduce the mess and bother.


Manfred

Kyle Arola via Mercedes wrote:

He is the bottle tester I will be ordering if I choose to do the injectors
myself, which I most likely will.

https://mercedessource.com/store/diesel-fuel-injector-balance-pressure-tester-yes-you-can-do-it-yourself

There is also a kit from him that has the shims and everything, including
monarch nozzles along with video\pdf instructions.

Kyle

On Feb 9, 2017 2:19 AM, "Curley McLain via Mercedes" <mercedes@okiebenz.com>
wrote:


You do NOT want to put a finger (or any other part of yourself) under a
injector nozzle being tested.  In the same way that you never want to try
to put a hand over a ruptured hydraulic line.  Both are very hazardous to
your life.

I have always sent nozzle holders out for testing/replacement/calibration.
As most of you know, I believe in doing almost everything yourself.  I WILL
not mess with an injector pump, that needs to be done on a test stand, and
I will not mess with calibrating injectors, not that the nozzles are so
complicated, but simply because it needs to be done so seldom.  An
injection shop that tests nozzles every day can pick up nuances that I
can't when I only test a set once every 10-15 years.  Right now, I think it
has been about 15 years since I had nozzles tested or replaced.

I know Kleb and Jaime and some others do their own, and I am not
disparaging them at all.  Both do it more often than I need to. Ymmv

The modified bottle jack tester is the least expensive DIY method.

Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>

February 8, 2017 at 10:19 PM
2000psi + Wow! A lot of pressure to work with.  I've seen some machines
on the market that read the pressure - are they hard to come by?

Thanks!

Larry




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MG via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 7:27 PM
According to 07.1-137 Disassembly, cleaning, assembly and adjustment of
injection nozzles. The pressure is to be 135-143 bar for new and 120 for
used. No more then 5 bar between the highest and lowest but closer is
better. That's 1958 to 2074psi more or less. I think the ones I did a few
years ago for my 6.5 chevy engine I got to 5 psi between the highest and
lowest. It took a bit.

Manfred



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Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:25 PM
I believe opening pressures should be around 1800 psi/115 bar, and the
set should be within 50 psi or about 3.5 bar of each other.

Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad



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Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:13 PM
I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: "d...@penoff.com" <d...@penoff.com>
Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very
competitive prices, and ships promptly. I just bought a set for the 300D
and they were $137.00 shipped. I got them in about a week's time from the
Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people
I talked to.

You can disassemble your injectors and clean or replace the nozzles, but
they really need to be recalibrated if you do, especially if you replace
the nozzles.  Insist on having the set matched to 5.0 bar or less, as the
farther apart they are as far as opening pressures will have a significant
effect on the smoothness of the idle and efficiency of the engine.

If you've never done this before, don't have a pop tester and an almost
surgically clean work area you're heading for a very unpleasant result.

-D

Sent from my iPad



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Re: [MBZ] Servicing Injectors

[Craig via Mercedes]

On Thu, 09 Feb 2017 01:19:42 -0600 Curley McLain via Mercedes
 wrote:

> You do NOT want to put a finger (or any other part of yourself) under a 
> injector nozzle being tested.  In the same way that you never want to 
> try to put a hand over a ruptured hydraulic line.  Both are very 
> hazardous to your life.

I have a friend who was in submarines in the Navy. He said on
conventional submarines, they used a straw broom to find steam piping
leaks -- where the straws were cut off the broom, there was the leak!
He also said in nuclear submarines they used 2x4s.


Craig

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Re: [MBZ] Servicing Injectors

[Jaime Kopchinski via Mercedes]

I used the bottle jack tester for a few years before upgrading to the Bosch
tester.

It works fine and is a great solution. Its not difficult work, but you have
to have good attention to detail to get good results.

Jaime


On Thu, Feb 9, 2017 at 6:17 AM, Kyle Arola via Mercedes <
mercedes@okiebenz.com> wrote:

> He is the bottle tester I will be ordering if I choose to do the injectors
> myself, which I most likely will.
>
> https://mercedessource.com/store/diesel-fuel-injector-
> balance-pressure-tester-yes-you-can-do-it-yourself
>
> There is also a kit from him that has the shims and everything, including
> monarch nozzles along with video\pdf instructions.
>
> Kyle
>
> On Feb 9, 2017 2:19 AM, "Curley McLain via Mercedes" <
> mercedes@okiebenz.com>
> wrote:
>
> > You do NOT want to put a finger (or any other part of yourself) under a
> > injector nozzle being tested.  In the same way that you never want to try
> > to put a hand over a ruptured hydraulic line.  Both are very hazardous to
> > your life.
> >
> > I have always sent nozzle holders out for testing/replacement/
> calibration.
> > As most of you know, I believe in doing almost everything yourself.  I
> WILL
> > not mess with an injector pump, that needs to be done on a test stand,
> and
> > I will not mess with calibrating injectors, not that the nozzles are so
> > complicated, but simply because it needs to be done so seldom.  An
> > injection shop that tests nozzles every day can pick up nuances that I
> > can't when I only test a set once every 10-15 years.  Right now, I think
> it
> > has been about 15 years since I had nozzles tested or replaced.
> >
> > I know Kleb and Jaime and some others do their own, and I am not
> > disparaging them at all.  Both do it more often than I need to. Ymmv
> >
> > The modified bottle jack tester is the least expensive DIY method.
> >
> > Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>
> >> February 8, 2017 at 10:19 PM
> >> 2000psi + Wow! A lot of pressure to work with.  I've seen some machines
> >> on the market that read the pressure - are they hard to come by?
> >>
> >> Thanks!
> >>
> >> Larry
> >>
> >>
> >>
> >>
> >> ___
> >> http://www.okiebenz.com
> >>
> >> To search list archives http://www.okiebenz.com/archive/
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>
> >> MG via Mercedes <mailto:mercedes@okiebenz.com>
> >> February 6, 2017 at 7:27 PM
> >> According to 07.1-137 Disassembly, cleaning, assembly and adjustment of
> >> injection nozzles. The pressure is to be 135-143 bar for new and 120 for
> >> used. No more then 5 bar between the highest and lowest but closer is
> >> better. That's 1958 to 2074psi more or less. I think the ones I did a
> few
> >> years ago for my 6.5 chevy engine I got to 5 psi between the highest and
> >> lowest. It took a bit.
> >>
> >> Manfred
> >>
> >>
> >>
> >> ___
> >> http://www.okiebenz.com
> >>
> >> To search list archives http://www.okiebenz.com/archive/
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>
> >> Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
> >> February 6, 2017 at 2:25 PM
> >> I believe opening pressures should be around 1800 psi/115 bar, and the
> >> set should be within 50 psi or about 3.5 bar of each other.
> >>
> >> Those are ballpark numbers from my memory, a dangerous thing at times.
> >>
> >> -D
> >>
> >> Sent from my iPad
> >>
> >>
> >>
> >> ___________
> >> http://www.okiebenz.com
> >>
> >> To search list archives http://www.okiebenz.com/archive/
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>
> >> Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
> >> February 6, 2017 at 2:13 PM
> >> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
> >> Although, how much is injection pressure?
> >> -Curt
> >>
> >> From: Dan--- via Mercedes <

Re: [MBZ] Servicing Injectors

[Kyle Arola via Mercedes]

He is the bottle tester I will be ordering if I choose to do the injectors
myself, which I most likely will.

https://mercedessource.com/store/diesel-fuel-injector-balance-pressure-tester-yes-you-can-do-it-yourself

There is also a kit from him that has the shims and everything, including
monarch nozzles along with video\pdf instructions.

Kyle

On Feb 9, 2017 2:19 AM, "Curley McLain via Mercedes" <mercedes@okiebenz.com>
wrote:

> You do NOT want to put a finger (or any other part of yourself) under a
> injector nozzle being tested.  In the same way that you never want to try
> to put a hand over a ruptured hydraulic line.  Both are very hazardous to
> your life.
>
> I have always sent nozzle holders out for testing/replacement/calibration.
> As most of you know, I believe in doing almost everything yourself.  I WILL
> not mess with an injector pump, that needs to be done on a test stand, and
> I will not mess with calibrating injectors, not that the nozzles are so
> complicated, but simply because it needs to be done so seldom.  An
> injection shop that tests nozzles every day can pick up nuances that I
> can't when I only test a set once every 10-15 years.  Right now, I think it
> has been about 15 years since I had nozzles tested or replaced.
>
> I know Kleb and Jaime and some others do their own, and I am not
> disparaging them at all.  Both do it more often than I need to. Ymmv
>
> The modified bottle jack tester is the least expensive DIY method.
>
> Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>
>> February 8, 2017 at 10:19 PM
>> 2000psi + Wow! A lot of pressure to work with.  I've seen some machines
>> on the market that read the pressure - are they hard to come by?
>>
>> Thanks!
>>
>> Larry
>>
>>
>>
>>
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>> MG via Mercedes <mailto:mercedes@okiebenz.com>
>> February 6, 2017 at 7:27 PM
>> According to 07.1-137 Disassembly, cleaning, assembly and adjustment of
>> injection nozzles. The pressure is to be 135-143 bar for new and 120 for
>> used. No more then 5 bar between the highest and lowest but closer is
>> better. That's 1958 to 2074psi more or less. I think the ones I did a few
>> years ago for my 6.5 chevy engine I got to 5 psi between the highest and
>> lowest. It took a bit.
>>
>> Manfred
>>
>>
>>
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>> Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
>> February 6, 2017 at 2:25 PM
>> I believe opening pressures should be around 1800 psi/115 bar, and the
>> set should be within 50 psi or about 3.5 bar of each other.
>>
>> Those are ballpark numbers from my memory, a dangerous thing at times.
>>
>> -D
>>
>> Sent from my iPad
>>
>>
>>
>> ___
>> http://www.okiebenz.com
>>
>> To search list archives http://www.okiebenz.com/archive/
>>
>> To Unsubscribe or change delivery options go to:
>> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>> Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
>> February 6, 2017 at 2:13 PM
>> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
>> Although, how much is injection pressure?
>> -Curt
>>
>> From: Dan--- via Mercedes <mercedes@okiebenz.com>
>> To: Mercedes Discussion List <mercedes@okiebenz.com>
>> Cc: "d...@penoff.com" <d...@penoff.com>
>> Sent: Monday, February 6, 2017 3:01 PM
>> Subject: Re: [MBZ] Servicing Injectors
>>
>> There is a guy on German eBay that sells Monark nozzles at very
>> competitive prices, and ships promptly. I just bought a set for the 300D
>> and they were $137.00 shipped. I got them in about a week's time from the
>> Fatherland.
>>
>> Bosch nozzles are garbage according to a couple of fuel injection people
>> I talked to.
>>
>> You can disassemble your injectors and clean or replace the nozzles, but
>> they really need to be recalibrated if you do, especially if you replace
>> the nozzles.  Insist on having the set 

Re: [MBZ] Servicing Injectors

[Curley McLain via Mercedes]

You do NOT want to put a finger (or any other part of yourself) under a 
injector nozzle being tested.  In the same way that you never want to 
try to put a hand over a ruptured hydraulic line.  Both are very 
hazardous to your life.


I have always sent nozzle holders out for 
testing/replacement/calibration.  As most of you know, I believe in 
doing almost everything yourself.  I WILL not mess with an injector 
pump, that needs to be done on a test stand, and I will not mess with 
calibrating injectors, not that the nozzles are so complicated, but 
simply because it needs to be done so seldom.  An injection shop that 
tests nozzles every day can pick up nuances that I can't when I only 
test a set once every 10-15 years.  Right now, I think it has been about 
15 years since I had nozzles tested or replaced.


I know Kleb and Jaime and some others do their own, and I am not 
disparaging them at all.  Both do it more often than I need to. Ymmv


The modified bottle jack tester is the least expensive DIY method.


Larry Turner via Mercedes <mailto:mercedes@okiebenz.com>
February 8, 2017 at 10:19 PM
2000psi + Wow! A lot of pressure to work with.  I've seen some 
machines on the market that read the pressure - are they hard to come by?


Thanks!

Larry




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MG via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 7:27 PM
According to 07.1-137 Disassembly, cleaning, assembly and adjustment 
of injection nozzles. The pressure is to be 135-143 bar for new and 
120 for used. No more then 5 bar between the highest and lowest but 
closer is better. That's 1958 to 2074psi more or less. I think the 
ones I did a few years ago for my 6.5 chevy engine I got to 5 psi 
between the highest and lowest. It took a bit.


Manfred



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Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:25 PM
I believe opening pressures should be around 1800 psi/115 bar, and the 
set should be within 50 psi or about 3.5 bar of each other.


Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad



___
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Curt Raymond via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:13 PM
I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: "d...@penoff.com" <d...@penoff.com>
Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very 
competitive prices, and ships promptly. I just bought a set for the 
300D and they were $137.00 shipped. I got them in about a week's time 
from the Fatherland.


Bosch nozzles are garbage according to a couple of fuel injection 
people I talked to.


You can disassemble your injectors and clean or replace the nozzles, 
but they really need to be recalibrated if you do, especially if you 
replace the nozzles.  Insist on having the set matched to 5.0 bar or 
less, as the farther apart they are as far as opening pressures will 
have a significant effect on the smoothness of the idle and efficiency 
of the engine.


If you've never done this before, don't have a pop tester and an 
almost surgically clean work area you're heading for a very unpleasant 
result.


-D

Sent from my iPad



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Dan--- via Mercedes <mailto:mercedes@okiebenz.com>
February 6, 2017 at 2:01 PM
There is a guy on German eBay that sells Monark nozzles at very 
competitive prices, and ships promptly. I just bought a set for the 
300D and they were $137.00 shipped. I got them in about a week's time 
from the Fatherland.


Bosch nozzles are garbage according to a couple of fuel injection 
people I talked to.

Re: [MBZ] Servicing Injectors

[Scott Ritchey via Mercedes]

New common rail systems are way higher, like 15,000 psi.

> -Original Message-
> From: Mercedes [mailto:mercedes-boun...@okiebenz.com] On Behalf Of
> Larry Turner via Mercedes
> Sent: Wednesday, February 08, 2017 11:19 PM
> To: MG via Mercedes <mercedes@okiebenz.com>
> Cc: Larry Turner <l02tur...@comcast.net>
> Subject: Re: [MBZ] Servicing Injectors
> 
> 2000psi + Wow! A lot of pressure to work with.  I've seen some machines on
> the market that read the pressure - are they hard to come by?
> 
> Thanks!
> 
> Larry
> 
> 
> On 02/06/2017 8:27 PM, MG via Mercedes wrote:
> > According to 07.1-137 Disassembly, cleaning, assembly and adjustment
> > of injection nozzles. The pressure is to be 135-143 bar for new and
> > 120 for used. No more then 5 bar between the highest and lowest but
> > closer is better. That's 1958 to 2074psi more or less. I think the
> > ones I did a few years ago for my 6.5 chevy engine I got to 5 psi
> > between the highest and lowest. It took a bit.
> >
> > Manfred
> >
> > Dan--- via Mercedes wrote:
> >> I believe opening pressures should be around 1800 psi/115 bar, and
> >> the set should be within 50 psi or about 3.5 bar of each other.
> >>
> >> Those are ballpark numbers from my memory, a dangerous thing at times.
> >>
> >> -D
> >>
> >> Sent from my iPad
> >>
> >>> On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes
> >>> <mercedes@okiebenz.com> wrote:
> >>>
> >>> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
> >>> Although, how much is injection pressure?
> >>> -Curt
> >>>
> >>>  From: Dan--- via Mercedes <mercedes@okiebenz.com>
> >>> To: Mercedes Discussion List <mercedes@okiebenz.com> Cc:
> >>> "d...@penoff.com" <d...@penoff.com>
> >>> Sent: Monday, February 6, 2017 3:01 PM
> >>> Subject: Re: [MBZ] Servicing Injectors
> >>>
> >>> There is a guy on German eBay that sells Monark nozzles at very
> >>> competitive prices, and ships promptly. I just bought a set for the
> >>> 300D and they were $137.00 shipped. I got them in about a week's
> >>> time from the Fatherland.
> >>>
> >>> Bosch nozzles are garbage according to a couple of fuel injection
> >>> people I talked to.
> >>>
> >>> You can disassemble your injectors and clean or replace the nozzles,
> >>> but they really need to be recalibrated if you do, especially if you
> >>> replace the nozzles.  Insist on having the set matched to 5.0 bar or
> >>> less, as the farther apart they are as far as opening pressures will
> >>> have a significant effect on the smoothness of the idle and
> >>> efficiency of the engine.
> >>>
> >>> If you've never done this before, don't have a pop tester and an
> >>> almost surgically clean work area you're heading for a very
> >>> unpleasant result.
> >>>
> >>> -D
> >>>
> >>> Sent from my iPad
> >>>
> >>>> On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes
> >>>> <mercedes@okiebenz.com> wrote:
> >>>>
> >>>> You can but I don't think you'll be happy with the results. The
> >>>> injectors have to be calibrated so they open at the right pressure.
> >>>> From what I understand getting them calibrated as close as possible
> >>>> to each other will result in a smoother and quieter engine.
> >>>> Max and I have both used a fellow in NC for the job. It wasn't
> >>>> terribly expensive, Max has had his done more recently and might
> >>>> know the number.
> >>>> RE: the injector nozzles, most people regard Bosch as garbage,
> >>>> Mark, the guy in NC says if you need 4 injectors done order 6 Bosch
> >>>> nozzles so hopefully you get 4 good ones. Monark are the ones worth
> >>>> working with, they're a little more expensive but this is a case
> >>>> where spending the money is worth it.
> >>>> -Curt
> >>>>
> >>>>   From: Larry Turner via Mercedes <mercedes@okiebenz.com>
> >>>> To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> Cc: Larry
> >>>> Turner <l02tur...@comcast.net>
> >>>> Sent: Monday, February 6, 2017 2:31 PM
> >>>> Subject: [MBZ] Servicing 

Re: [MBZ] Servicing Injectors

[MG via Mercedes]

That machine is called a pressure gauge. Not very expensive at 
all. The part that costs is the pump that produces the pressure. 
Some people make their own from bottle jacks.


Larry Turner via Mercedes wrote:
2000psi + Wow! A lot of pressure to work with.  I've seen some machines 
on the market that read the pressure - are they hard to come by?


Thanks!

Larry


On 02/06/2017 8:27 PM, MG via Mercedes wrote:
According to 07.1-137 Disassembly, cleaning, assembly and adjustment 
of injection nozzles. The pressure is to be 135-143 bar for new and 
120 for used. No more then 5 bar between the highest and lowest but 
closer is better. That's 1958 to 2074psi more or less. I think the 
ones I did a few years ago for my 6.5 chevy engine I got to 5 psi 
between the highest and lowest. It took a bit.


Manfred

Dan--- via Mercedes wrote:
I believe opening pressures should be around 1800 psi/115 bar, and 
the set should be within 50 psi or about 3.5 bar of each other.


Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad

On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes 
<mercedes@okiebenz.com> wrote:


I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

 From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com> Cc: 
"d...@penoff.com" <d...@penoff.com>

Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very 
competitive prices, and ships promptly. I just bought a set for the 
300D and they were $137.00 shipped. I got them in about a week's 
time from the Fatherland.


Bosch nozzles are garbage according to a couple of fuel injection 
people I talked to.


You can disassemble your injectors and clean or replace the nozzles, 
but they really need to be recalibrated if you do, especially if you 
replace the nozzles.  Insist on having the set matched to 5.0 bar or 
less, as the farther apart they are as far as opening pressures will 
have a significant effect on the smoothness of the idle and 
efficiency of the engine.


If you've never done this before, don't have a pop tester and an 
almost surgically clean work area you're heading for a very 
unpleasant result.


-D

Sent from my iPad

On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes 
<mercedes@okiebenz.com> wrote:


You can but I don't think you'll be happy with the results. The 
injectors have to be calibrated so they open at the right pressure. 
From what I understand getting them calibrated as close as possible 
to each other will result in a smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't 
terribly expensive, Max has had his done more recently and might 
know the number.
RE: the injector nozzles, most people regard Bosch as garbage, 
Mark, the guy in NC says if you need 4 injectors done order 6 Bosch 
nozzles so hopefully you get 4 good ones. Monark are the ones worth 
working with, they're a little more expensive but this is a case 
where spending the money is worth it.

-Curt

  From: Larry Turner via Mercedes <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> Cc: Larry 
Turner <l02tur...@comcast.net>

Sent: Monday, February 6, 2017 2:31 PM
Subject: [MBZ] Servicing Injectors

Please excuse my ignora



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Re: [MBZ] Servicing Injectors

[Larry Turner via Mercedes]

2000psi + Wow! A lot of pressure to work with.  I've seen some machines 
on the market that read the pressure - are they hard to come by?


Thanks!

Larry


On 02/06/2017 8:27 PM, MG via Mercedes wrote:
According to 07.1-137 Disassembly, cleaning, assembly and adjustment 
of injection nozzles. The pressure is to be 135-143 bar for new and 
120 for used. No more then 5 bar between the highest and lowest but 
closer is better. That's 1958 to 2074psi more or less. I think the 
ones I did a few years ago for my 6.5 chevy engine I got to 5 psi 
between the highest and lowest. It took a bit.


Manfred

Dan--- via Mercedes wrote:
I believe opening pressures should be around 1800 psi/115 bar, and 
the set should be within 50 psi or about 3.5 bar of each other.


Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad

On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes 
<mercedes@okiebenz.com> wrote:


I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

 From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com> Cc: 
"d...@penoff.com" <d...@penoff.com>

Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very 
competitive prices, and ships promptly. I just bought a set for the 
300D and they were $137.00 shipped. I got them in about a week's 
time from the Fatherland.


Bosch nozzles are garbage according to a couple of fuel injection 
people I talked to.


You can disassemble your injectors and clean or replace the nozzles, 
but they really need to be recalibrated if you do, especially if you 
replace the nozzles.  Insist on having the set matched to 5.0 bar or 
less, as the farther apart they are as far as opening pressures will 
have a significant effect on the smoothness of the idle and 
efficiency of the engine.


If you've never done this before, don't have a pop tester and an 
almost surgically clean work area you're heading for a very 
unpleasant result.


-D

Sent from my iPad

On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes 
<mercedes@okiebenz.com> wrote:


You can but I don't think you'll be happy with the results. The 
injectors have to be calibrated so they open at the right pressure. 
From what I understand getting them calibrated as close as possible 
to each other will result in a smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't 
terribly expensive, Max has had his done more recently and might 
know the number.
RE: the injector nozzles, most people regard Bosch as garbage, 
Mark, the guy in NC says if you need 4 injectors done order 6 Bosch 
nozzles so hopefully you get 4 good ones. Monark are the ones worth 
working with, they're a little more expensive but this is a case 
where spending the money is worth it.

-Curt

  From: Larry Turner via Mercedes <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> Cc: Larry 
Turner <l02tur...@comcast.net>

Sent: Monday, February 6, 2017 2:31 PM
Subject: [MBZ] Servicing Injectors

Please excuse my ignora



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Re: [MBZ] Servicing Injectors

[MG via Mercedes]

According to 07.1-137 Disassembly, cleaning, assembly and 
adjustment of injection nozzles. The pressure is to be 135-143 
bar for new and 120 for used. No more then 5 bar between the 
highest and lowest but closer is better. That's 1958 to 2074psi 
more or less. I think the ones I did a few years ago for my 6.5 
chevy engine I got to 5 psi between the highest and lowest. It 
took a bit.


Manfred

Dan--- via Mercedes wrote:

I believe opening pressures should be around 1800 psi/115 bar, and the set 
should be within 50 psi or about 3.5 bar of each other.

Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad


On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
wrote:

I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

 From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com> 
Cc: "d...@penoff.com" <d...@penoff.com>

Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very competitive 
prices, and ships promptly. I just bought a set for the 300D and they were 
$137.00 shipped. I got them in about a week's time from the Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people I 
talked to.

You can disassemble your injectors and clean or replace the nozzles, but they 
really need to be recalibrated if you do, especially if you replace the 
nozzles.  Insist on having the set matched to 5.0 bar or less, as the farther 
apart they are as far as opening pressures will have a significant effect on 
the smoothness of the idle and efficiency of the engine.

If you've never done this before, don't have a pop tester and an almost 
surgically clean work area you're heading for a very unpleasant result.

-D

Sent from my iPad


On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
wrote:

You can but I don't think you'll be happy with the results. The injectors have 
to be calibrated so they open at the right pressure. From what I understand 
getting them calibrated as close as possible to each other will result in a 
smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't terribly 
expensive, Max has had his done more recently and might know the number.
RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy in 
NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully you get 
4 good ones. Monark are the ones worth working with, they're a little more 
expensive but this is a case where spending the money is worth it.
-Curt

  From: Larry Turner via Mercedes <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> 
Cc: Larry Turner <l02tur...@comcast.net>

Sent: Monday, February 6, 2017 2:31 PM
Subject: [MBZ] Servicing Injectors

Please excuse my ignora



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Re: [MBZ] Servicing Injectors

[Rick Knoble via Mercedes]

135 bar. 

http://www.peachparts.com/shopforum/diesel-discussion/198995-diesel-injector-pop-test-pressure.html‎
‎
https://www.youtube.com/watch?v=-oNtpzv63AI=em

Rick ‎
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Re: [MBZ] Servicing Injectors

[Craig via Mercedes]

On Mon, 6 Feb 2017 15:25:45 -0500 Dan--- via Mercedes
 wrote:

> I believe opening pressures should be around 1800 psi/115 bar, and the
> set should be within 50 psi or about 3.5 bar of each other.
> 
> Those are ballpark numbers from my memory, a dangerous thing at times.


From: Marshall Booth 
To: die...@mbz.org
Reply-To: die...@mbz.org
Subject: Re: [DIESEL] test injectors?
Date: Wed, 07 Jun 2000 18:30:07 -0400
Sender: owner-die...@mbz.org
Organization: Univ of Pittsburgh School of Medicine
X-Mailer: Mozilla 4.73 [en] (Win95; U)

Paul, To test injectors for spray pattern, leakage and injection
pressure you need access to a so-called "pop-tester." Such a device can
be bought for between $400-$1000. Almost any diesel shop has one and you
can sometimes prevail on them to check your injectors (if you bring them
in, in your hand, the cost can be negligable - if they are in the right
mood). Many (not all) shops that do MB diesels have them as well, but
most mechanics (especially if they are working flat rate) are not eager
to spend their time playing with your injectors. If you want the
injectors pulled, tested, calibrated/rebuilt if off and reinstalled, the
costs can escalate. Many shops simply routinely install rebuilt
injectors and any imbalance is attributable to you "old" car (even when
they didn't test the injectors they installed for proper pressure). The
published range for new/rebuild Bosch injectors covers a 10 bar pressure
range. The limit for the injectors in a single engine is 5 bar. So even
if the replacement injectors meet Bosch standards, they may exceed MB's
spec for use in a single engine (and Bosch rebuilds do NOT always meet
Bosch standards - right out of the box).

Marshall
-- 
Marshall Booth
Univ of Pittsburgh School of Medicine
Department of Pharmacology  1300 BST
Pittsburgh PA 15261 USA
mboo...@pitt.edu

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Re: [MBZ] Servicing Injectors

[Kaleb C. Striplin via Mercedes]

I can tell you the 603 injectors are 135 bar


On 2/6/2017 2:25 PM, Dan--- via Mercedes wrote:

I believe opening pressures should be around 1800 psi/115 bar, and the set 
should be within 50 psi or about 3.5 bar of each other.

Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad


On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
wrote:

I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

  From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: "d...@penoff.com" <d...@penoff.com>
Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors

There is a guy on German eBay that sells Monark nozzles at very competitive 
prices, and ships promptly. I just bought a set for the 300D and they were 
$137.00 shipped. I got them in about a week's time from the Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people I 
talked to.

You can disassemble your injectors and clean or replace the nozzles, but they 
really need to be recalibrated if you do, especially if you replace the 
nozzles.  Insist on having the set matched to 5.0 bar or less, as the farther 
apart they are as far as opening pressures will have a significant effect on 
the smoothness of the idle and efficiency of the engine.

If you've never done this before, don't have a pop tester and an almost 
surgically clean work area you're heading for a very unpleasant result.

-D

Sent from my iPad


On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
wrote:

You can but I don't think you'll be happy with the results. The injectors have 
to be calibrated so they open at the right pressure. From what I understand 
getting them calibrated as close as possible to each other will result in a 
smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't terribly 
expensive, Max has had his done more recently and might know the number.
RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy in 
NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully you get 
4 good ones. Monark are the ones worth working with, they're a little more 
expensive but this is a case where spending the money is worth it.
-Curt

   From: Larry Turner via Mercedes <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com" <mercedes@okiebenz.com>
Cc: Larry Turner <l02tur...@comcast.net>
Sent: Monday, February 6, 2017 2:31 PM
Subject: [MBZ] Servicing Injectors

Please excuse my ignora


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Re: [MBZ] Servicing Injectors

[Kaleb C. Striplin via Mercedes]

Monark are good, Bosio are the best for sure.


On 2/6/2017 1:43 PM, Curt Raymond via Mercedes wrote:

You can but I don't think you'll be happy with the results. The injectors have 
to be calibrated so they open at the right pressure. From what I understand 
getting them calibrated as close as possible to each other will result in a 
smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't terribly 
expensive, Max has had his done more recently and might know the number.
RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy in 
NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully you get 
4 good ones. Monark are the ones worth working with, they're a little more 
expensive but this is a case where spending the money is worth it.
-Curt

   From: Larry Turner via Mercedes <mercedes@okiebenz.com>
  To: "mercedes@okiebenz.com" <mercedes@okiebenz.com>
Cc: Larry Turner <l02tur...@comcast.net>
  Sent: Monday, February 6, 2017 2:31 PM
  Subject: [MBZ] Servicing Injectors

Please excuse my ignorance - let's say I wanted to improve my Fuel

Injectors.  Would it be acceptable to remove my injectors, replace the
Heat Shields and disassemble the Injectors to replace the Injection
Nozzles?  When I said "excuse my ignorance" I was talking about my
knowledge of the inner workings of the Injectors.  I have no idea what
the Inj Nozzles to although I can guess. But I might be guessing wrong

The Heat Shields are less than $2 ea and the Nozzles are around $23 - is
there more to this than removing the Injectors, unscrewing the 2 halves
and replacing the injector?  Any reaming or special tools?

Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure
Valve problem fixed)

LarryT

91 300D 2.5T

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Re: [MBZ] Servicing Injectors

[Dan--- via Mercedes]

I believe opening pressures should be around 1800 psi/115 bar, and the set 
should be within 50 psi or about 3.5 bar of each other.

Those are ballpark numbers from my memory, a dangerous thing at times.

-D

Sent from my iPad

> On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
> wrote:
> 
> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
> Although, how much is injection pressure?
> -Curt
> 
>  From: Dan--- via Mercedes <mercedes@okiebenz.com>
> To: Mercedes Discussion List <mercedes@okiebenz.com> 
> Cc: "d...@penoff.com" <d...@penoff.com>
> Sent: Monday, February 6, 2017 3:01 PM
> Subject: Re: [MBZ] Servicing Injectors
> 
> There is a guy on German eBay that sells Monark nozzles at very competitive 
> prices, and ships promptly. I just bought a set for the 300D and they were 
> $137.00 shipped. I got them in about a week's time from the Fatherland.
> 
> Bosch nozzles are garbage according to a couple of fuel injection people I 
> talked to.
> 
> You can disassemble your injectors and clean or replace the nozzles, but they 
> really need to be recalibrated if you do, especially if you replace the 
> nozzles.  Insist on having the set matched to 5.0 bar or less, as the farther 
> apart they are as far as opening pressures will have a significant effect on 
> the smoothness of the idle and efficiency of the engine.
> 
> If you've never done this before, don't have a pop tester and an almost 
> surgically clean work area you're heading for a very unpleasant result.
> 
> -D
> 
> Sent from my iPad
> 
>> On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes 
>> <mercedes@okiebenz.com> wrote:
>> 
>> You can but I don't think you'll be happy with the results. The injectors 
>> have to be calibrated so they open at the right pressure. From what I 
>> understand getting them calibrated as close as possible to each other will 
>> result in a smoother and quieter engine.
>> Max and I have both used a fellow in NC for the job. It wasn't terribly 
>> expensive, Max has had his done more recently and might know the number.
>> RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy 
>> in NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully 
>> you get 4 good ones. Monark are the ones worth working with, they're a 
>> little more expensive but this is a case where spending the money is worth 
>> it.
>> -Curt
>> 
>>   From: Larry Turner via Mercedes <mercedes@okiebenz.com>
>> To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> 
>> Cc: Larry Turner <l02tur...@comcast.net>
>> Sent: Monday, February 6, 2017 2:31 PM
>> Subject: [MBZ] Servicing Injectors
>> 
>> Please excuse my ignora


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Re: [MBZ] Servicing Injectors

[Craig via Mercedes]

On Mon, 6 Feb 2017 20:13:07 + (UTC) Curt Raymond via Mercedes
 wrote:

> I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.

I thought it was 0.5 bar, too.


> Although, how much is injection pressure?

Something about 1400 psi (100 bar), IIRC.


Craig

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Re: [MBZ] Servicing Injectors

[Rick Knoble via Mercedes]

http://vincewaldon.com/index.php?option=com_content=view=20=28

Rick 

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Re: [MBZ] Servicing Injectors

[Curt Raymond via Mercedes]

I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt

  From: Dan--- via Mercedes <mercedes@okiebenz.com>
 To: Mercedes Discussion List <mercedes@okiebenz.com> 
Cc: "d...@penoff.com" <d...@penoff.com>
 Sent: Monday, February 6, 2017 3:01 PM
 Subject: Re: [MBZ] Servicing Injectors
   
There is a guy on German eBay that sells Monark nozzles at very competitive 
prices, and ships promptly. I just bought a set for the 300D and they were 
$137.00 shipped. I got them in about a week's time from the Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people I 
talked to.

You can disassemble your injectors and clean or replace the nozzles, but they 
really need to be recalibrated if you do, especially if you replace the 
nozzles.  Insist on having the set matched to 5.0 bar or less, as the farther 
apart they are as far as opening pressures will have a significant effect on 
the smoothness of the idle and efficiency of the engine.

If you've never done this before, don't have a pop tester and an almost 
surgically clean work area you're heading for a very unpleasant result.

-D

Sent from my iPad

> On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
> wrote:
> 
> You can but I don't think you'll be happy with the results. The injectors 
> have to be calibrated so they open at the right pressure. From what I 
> understand getting them calibrated as close as possible to each other will 
> result in a smoother and quieter engine.
> Max and I have both used a fellow in NC for the job. It wasn't terribly 
> expensive, Max has had his done more recently and might know the number.
> RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy 
> in NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully 
> you get 4 good ones. Monark are the ones worth working with, they're a little 
> more expensive but this is a case where spending the money is worth it.
> -Curt
> 
>      From: Larry Turner via Mercedes <mercedes@okiebenz.com>
> To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> 
> Cc: Larry Turner <l02tur...@comcast.net>
> Sent: Monday, February 6, 2017 2:31 PM
> Subject: [MBZ] Servicing Injectors
> 
> Please excuse my ignorance - let's say I wanted to improve my Fuel 
> Injectors.  Would it be acceptable to remove my injectors, replace the 
> Heat Shields and disassemble the Injectors to replace the Injection 
> Nozzles?  When I said "excuse my ignorance" I was talking about my 
> knowledge of the inner workings of the Injectors.  I have no idea what 
> the Inj Nozzles to although I can guess. But I might be guessing wrong
> 
> The Heat Shields are less than $2 ea and the Nozzles are around $23 - is 
> there more to this than removing the Injectors, unscrewing the 2 halves 
> and replacing the injector?  Any reaming or special tools?
> 
> Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure 
> Valve problem fixed)
> 
> LarryT
> 
> 91 300D 2.5T
> 
> ___
> http://www.okiebenz.com
> 
> To search list archives http://www.okiebenz.com/archive/
> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 
> 
> 
> 
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> 
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> 
> To Unsubscribe or change delivery options go to:
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> 


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Re: [MBZ] Servicing Injectors

[Dan--- via Mercedes]

There is a guy on German eBay that sells Monark nozzles at very competitive 
prices, and ships promptly. I just bought a set for the 300D and they were 
$137.00 shipped. I got them in about a week's time from the Fatherland.

Bosch nozzles are garbage according to a couple of fuel injection people I 
talked to.

You can disassemble your injectors and clean or replace the nozzles, but they 
really need to be recalibrated if you do, especially if you replace the 
nozzles.  Insist on having the set matched to 5.0 bar or less, as the farther 
apart they are as far as opening pressures will have a significant effect on 
the smoothness of the idle and efficiency of the engine.

If you've never done this before, don't have a pop tester and an almost 
surgically clean work area you're heading for a very unpleasant result.

-D

Sent from my iPad

> On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes <mercedes@okiebenz.com> 
> wrote:
> 
> You can but I don't think you'll be happy with the results. The injectors 
> have to be calibrated so they open at the right pressure. From what I 
> understand getting them calibrated as close as possible to each other will 
> result in a smoother and quieter engine.
> Max and I have both used a fellow in NC for the job. It wasn't terribly 
> expensive, Max has had his done more recently and might know the number.
> RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy 
> in NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully 
> you get 4 good ones. Monark are the ones worth working with, they're a little 
> more expensive but this is a case where spending the money is worth it.
> -Curt
> 
>  From: Larry Turner via Mercedes <mercedes@okiebenz.com>
> To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> 
> Cc: Larry Turner <l02tur...@comcast.net>
> Sent: Monday, February 6, 2017 2:31 PM
> Subject: [MBZ] Servicing Injectors
> 
> Please excuse my ignorance - let's say I wanted to improve my Fuel 
> Injectors.  Would it be acceptable to remove my injectors, replace the 
> Heat Shields and disassemble the Injectors to replace the Injection 
> Nozzles?  When I said "excuse my ignorance" I was talking about my 
> knowledge of the inner workings of the Injectors.  I have no idea what 
> the Inj Nozzles to although I can guess. But I might be guessing wrong
> 
> The Heat Shields are less than $2 ea and the Nozzles are around $23 - is 
> there more to this than removing the Injectors, unscrewing the 2 halves 
> and replacing the injector?  Any reaming or special tools?
> 
> Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure 
> Valve problem fixed)
> 
> LarryT
> 
> 91 300D 2.5T
> 
> ___
> http://www.okiebenz.com
> 
> To search list archives http://www.okiebenz.com/archive/
> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 
> 
> 
> 
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> 
> To Unsubscribe or change delivery options go to:
> http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 


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Re: [MBZ] Servicing Injectors

[Randy Bennell via Mercedes]

https://mercedessource.com/store/diesel-injector-cleaning-overhaul-and-testing-procedures-manual-kent-bergsma

RB

On 06/02/2017 1:31 PM, Larry Turner via Mercedes wrote:
Please excuse my ignorance - let's say I wanted to improve my Fuel 
Injectors.  Would it be acceptable to remove my injectors, replace the 
Heat Shields and disassemble the Injectors to replace the Injection 
Nozzles?  When I said "excuse my ignorance" I was talking about my 
knowledge of the inner workings of the Injectors.  I have no idea what 
the Inj Nozzles to although I can guess. But I might be guessing 
wrong


The Heat Shields are less than $2 ea and the Nozzles are around $23 - 
is there more to this than removing the Injectors, unscrewing the 2 
halves and replacing the injector?  Any reaming or special tools?


Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure 
Valve problem fixed)


LarryT

91 300D 2.5T

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Re: [MBZ] Servicing Injectors

[Curt Raymond via Mercedes]

You can but I don't think you'll be happy with the results. The injectors have 
to be calibrated so they open at the right pressure. From what I understand 
getting them calibrated as close as possible to each other will result in a 
smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't terribly 
expensive, Max has had his done more recently and might know the number.
RE: the injector nozzles, most people regard Bosch as garbage, Mark, the guy in 
NC says if you need 4 injectors done order 6 Bosch nozzles so hopefully you get 
4 good ones. Monark are the ones worth working with, they're a little more 
expensive but this is a case where spending the money is worth it.
-Curt

  From: Larry Turner via Mercedes <mercedes@okiebenz.com>
 To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> 
Cc: Larry Turner <l02tur...@comcast.net>
 Sent: Monday, February 6, 2017 2:31 PM
 Subject: [MBZ] Servicing Injectors
   
Please excuse my ignorance - let's say I wanted to improve my Fuel 
Injectors.  Would it be acceptable to remove my injectors, replace the 
Heat Shields and disassemble the Injectors to replace the Injection 
Nozzles?  When I said "excuse my ignorance" I was talking about my 
knowledge of the inner workings of the Injectors.  I have no idea what 
the Inj Nozzles to although I can guess. But I might be guessing wrong

The Heat Shields are less than $2 ea and the Nozzles are around $23 - is 
there more to this than removing the Injectors, unscrewing the 2 halves 
and replacing the injector?  Any reaming or special tools?

Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure 
Valve problem fixed)

LarryT

91 300D 2.5T

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[MBZ] Servicing Injectors

[Larry Turner via Mercedes]

Please excuse my ignorance - let's say I wanted to improve my Fuel 
Injectors.  Would it be acceptable to remove my injectors, replace the 
Heat Shields and disassemble the Injectors to replace the Injection 
Nozzles?  When I said "excuse my ignorance" I was talking about my 
knowledge of the inner workings of the Injectors.  I have no idea what 
the Inj Nozzles to although I can guess. But I might be guessing wrong


The Heat Shields are less than $2 ea and the Nozzles are around $23 - is 
there more to this than removing the Injectors, unscrewing the 2 halves 
and replacing the injector?  Any reaming or special tools?


Thanks Gang (BTW, the car is in a (qualified) shop having the Pressure 
Valve problem fixed)


LarryT

91 300D 2.5T

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