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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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.
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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