Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-17 Thread andrew strasfogel
ALL:
I got another attack of sluggishness in DC near the Jefferson Memorial after
some high speed driving on I-395 coming back into town.  This time, it
lasted a good mile and nearly 10 minutes of driving at 10 mpg before
self-correcting.  I took the car to a local Auto Haus and they changed my
fuel tank strainer.  The one in the car was ORIGINAL 1983 vintage, and was
BLACK and completely clogged with what looked like a coke residue.  No
wonder i had this problem when the tank was low.  Maybe now I can actually
let the fuel tank dip to R without becoming fearful.

Thanks for all your help!

Andrew
1983 300TD
318 K miles

On Mon, Oct 6, 2008 at 2:29 PM, Rolf <[EMAIL PROTECTED]> wrote:

> Drivers side wall into the prefilter and from the cigar hose. Two hard
> lines on the fender wall. This is commonly done to blow out the tank
> filter, sometimes people forget to put it back.
>
> -Rolf
>
> andrew strasfogel wrote:
> > Seems unlikely, but where should I look?
> >
> > On Sun, Oct 5, 2008 at 6:56 PM, <[EMAIL PROTECTED]> wrote:
> >
> >
> >> Yes...could be crossed in the engine bay or by the tank.
> >> Sent from my Verizon Wireless BlackBerry
> >>
> >> -Original Message-
> >> From: "Kaleb C. Striplin" <[EMAIL PROTECTED]>
> >>
> >> Date: Sun, 05 Oct 2008 17:43:42
> >> To: Mercedes Discussion List
> >> Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD
> >>
> >>
> >>  maybe the supply and return line is backwards.  If that happens, will
> >> run out of fuel before it gets to the bottom.
> >>
> >> andrew strasfogel wrote:
> >>
> >>> Folks,
> >>> I added 3 gals of diesel last night, making the tank roughly 1/3 full,
> >>>
> >> and
> >>
> >>> then this morning went for my usual 12 mile spin on 270 to the squash
> >>>
> >> club.
> >>
> >>>  Exiting uphill on the cloverleaf ramp, I had no problems.  So the
> attack
> >>>
> >> of
> >>
> >>> sluggishness is definitely associated with low fuel reserves (less than
> >>>
> >> 1/4
> >>
> >>> full).
> >>>
> >>> On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]>
> >>>
> >> wrote:
> >>
> >>>> Another question - is it normal for there to be a release of
> >>>>
> >>>>> air (or vacuum) when I remove the fuel filler cap?
> >>>>>
> >>>>>
> >>>> A little, in my experience.  But a great gushing whoosh
> >>>> is not so good.
> >>>>
> >>>> -- Jim
> >>>>
> >>>>
> >>>>
> >>>> ___
> >>>> http://www.okiebenz.com
> >>>> For new parts see official list sponsor: http://www.buymbparts.com/
> >>>> For used parts email [EMAIL PROTECTED]
> >>>>
> >>>> To Unsubscribe or change delivery options go to:
> >>>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>>>
> >>>>
> >>> ___
> >>> http://www.okiebenz.com
> >>> For new parts see official list sponsor: http://www.buymbparts.com/
> >>> For used parts email [EMAIL PROTECTED]
> >>>
> >>> To Unsubscribe or change delivery options go to:
> >>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>>
> >>>
> >> --
> >> Kaleb C. Striplin/Claremore, OK
> >>  92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
> >>  87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D,
> >>  84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D,
> >>  76 300D, 72 250C, 69 250, 66 220SEb
> >> http://www.okiebenz.com
> >>
> >> ___
> >> http://www.okiebenz.com
> >> For new parts see official list sponsor: http://www.buymbparts.com/
> >> For used parts email [EMAIL PROTECTED]
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >> ___
> >> http://www.okiebenz.com
> >> For new parts see official list sponsor: http://www.buymbparts.com/
> >> For used parts email [EMAIL PROTECTED]
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>
> >>
> > ___
> > http://www.okiebenz.com
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> > For used parts email [EMAIL PROTECTED]
> >
> > To Unsubscribe or change delivery options go to:
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> >
>
>
> ___
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>
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>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-06 Thread Rolf
Drivers side wall into the prefilter and from the cigar hose. Two hard
lines on the fender wall. This is commonly done to blow out the tank
filter, sometimes people forget to put it back.

-Rolf

andrew strasfogel wrote:
> Seems unlikely, but where should I look?
>
> On Sun, Oct 5, 2008 at 6:56 PM, <[EMAIL PROTECTED]> wrote:
>
>   
>> Yes...could be crossed in the engine bay or by the tank.
>> Sent from my Verizon Wireless BlackBerry
>>
>> -Original Message-
>> From: "Kaleb C. Striplin" <[EMAIL PROTECTED]>
>>
>> Date: Sun, 05 Oct 2008 17:43:42
>> To: Mercedes Discussion List
>> Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD
>>
>>
>>  maybe the supply and return line is backwards.  If that happens, will
>> run out of fuel before it gets to the bottom.
>>
>> andrew strasfogel wrote:
>> 
>>> Folks,
>>> I added 3 gals of diesel last night, making the tank roughly 1/3 full,
>>>   
>> and
>> 
>>> then this morning went for my usual 12 mile spin on 270 to the squash
>>>   
>> club.
>> 
>>>  Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack
>>>   
>> of
>> 
>>> sluggishness is definitely associated with low fuel reserves (less than
>>>   
>> 1/4
>> 
>>> full).
>>>
>>> On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]>
>>>   
>> wrote:
>> 
>>>> Another question - is it normal for there to be a release of
>>>> 
>>>>> air (or vacuum) when I remove the fuel filler cap?
>>>>>
>>>>>   
>>>> A little, in my experience.  But a great gushing whoosh
>>>> is not so good.
>>>>
>>>> -- Jim
>>>>
>>>>
>>>>
>>>> ___
>>>> http://www.okiebenz.com
>>>> For new parts see official list sponsor: http://www.buymbparts.com/
>>>> For used parts email [EMAIL PROTECTED]
>>>>
>>>> To Unsubscribe or change delivery options go to:
>>>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>>
>>>> 
>>> ___
>>> http://www.okiebenz.com
>>> For new parts see official list sponsor: http://www.buymbparts.com/
>>> For used parts email [EMAIL PROTECTED]
>>>
>>> To Unsubscribe or change delivery options go to:
>>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>>
>>>   
>> --
>> Kaleb C. Striplin/Claremore, OK
>>  92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
>>  87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D,
>>  84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D,
>>  76 300D, 72 250C, 69 250, 66 220SEb
>> http://www.okiebenz.com
>>
>> ___
>> http://www.okiebenz.com
>> For new parts see official list sponsor: http://www.buymbparts.com/
>> For used parts email [EMAIL PROTECTED]
>>
>> To Unsubscribe or change delivery options go to:
>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>> ___
>> http://www.okiebenz.com
>> For new parts see official list sponsor: http://www.buymbparts.com/
>> For used parts email [EMAIL PROTECTED]
>>
>> To Unsubscribe or change delivery options go to:
>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
>> 
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>   


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-06 Thread andrew strasfogel
Seems unlikely, but where should I look?

On Sun, Oct 5, 2008 at 6:56 PM, <[EMAIL PROTECTED]> wrote:

> Yes...could be crossed in the engine bay or by the tank.
> Sent from my Verizon Wireless BlackBerry
>
> -Original Message-
> From: "Kaleb C. Striplin" <[EMAIL PROTECTED]>
>
> Date: Sun, 05 Oct 2008 17:43:42
> To: Mercedes Discussion List
> Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD
>
>
>  maybe the supply and return line is backwards.  If that happens, will
> run out of fuel before it gets to the bottom.
>
> andrew strasfogel wrote:
> > Folks,
> > I added 3 gals of diesel last night, making the tank roughly 1/3 full,
> and
> > then this morning went for my usual 12 mile spin on 270 to the squash
> club.
> >  Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack
> of
> > sluggishness is definitely associated with low fuel reserves (less than
> 1/4
> > full).
> >
> > On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]>
> wrote:
> >
> >> Another question - is it normal for there to be a release of
> >>> air (or vacuum) when I remove the fuel filler cap?
> >>>
> >> A little, in my experience.  But a great gushing whoosh
> >> is not so good.
> >>
> >> -- Jim
> >>
> >>
> >>
> >> ___
> >> http://www.okiebenz.com
> >> For new parts see official list sponsor: http://www.buymbparts.com/
> >> For used parts email [EMAIL PROTECTED]
> >>
> >> To Unsubscribe or change delivery options go to:
> >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >>
> > ___
> > http://www.okiebenz.com
> > For new parts see official list sponsor: http://www.buymbparts.com/
> > For used parts email [EMAIL PROTECTED]
> >
> > To Unsubscribe or change delivery options go to:
> > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> >
>
> --
> Kaleb C. Striplin/Claremore, OK
>  92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
>  87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D,
>  84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D,
>  76 300D, 72 250C, 69 250, 66 220SEb
> http://www.okiebenz.com
>
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread brian . toscano
Yes...could be crossed in the engine bay or by the tank.
Sent from my Verizon Wireless BlackBerry

-Original Message-
From: "Kaleb C. Striplin" <[EMAIL PROTECTED]>

Date: Sun, 05 Oct 2008 17:43:42 
To: Mercedes Discussion List
Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD


maybe the supply and return line is backwards.  If that happens, will 
run out of fuel before it gets to the bottom.

andrew strasfogel wrote:
> Folks,
> I added 3 gals of diesel last night, making the tank roughly 1/3 full, and
> then this morning went for my usual 12 mile spin on 270 to the squash club.
>  Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack of
> sluggishness is definitely associated with low fuel reserves (less than 1/4
> full).
> 
> On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:
> 
>> Another question - is it normal for there to be a release of
>>> air (or vacuum) when I remove the fuel filler cap?
>>>
>> A little, in my experience.  But a great gushing whoosh
>> is not so good.
>>
>> -- Jim
>>
>>
>>
>> ___
>> http://www.okiebenz.com
>> For new parts see official list sponsor: http://www.buymbparts.com/
>> For used parts email [EMAIL PROTECTED]
>>
>> To Unsubscribe or change delivery options go to:
>> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>>
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
> 
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
> 

-- 
Kaleb C. Striplin/Claremore, OK
  92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
  87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D,
  84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D,
  76 300D, 72 250C, 69 250, 66 220SEb
http://www.okiebenz.com

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread Kaleb C. Striplin
maybe the supply and return line is backwards.  If that happens, will 
run out of fuel before it gets to the bottom.


andrew strasfogel wrote:

Folks,
I added 3 gals of diesel last night, making the tank roughly 1/3 full, and
then this morning went for my usual 12 mile spin on 270 to the squash club.
 Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack of
sluggishness is definitely associated with low fuel reserves (less than 1/4
full).

On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:


Another question - is it normal for there to be a release of

air (or vacuum) when I remove the fuel filler cap?


A little, in my experience.  But a great gushing whoosh
is not so good.

-- Jim



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--
Kaleb C. Striplin/Claremore, OK
 92 300SD, 92 300E 4Matic, 91 300D, 91 300E, 89 560SEL,
 87 300SDL x2, 86 300E, 85 380SE 5.0 Euro, 85 190D,
 84 190D, 84 300D euro manny, 81 240D, 80 240D, 76 240D,
 76 300D, 72 250C, 69 250, 66 220SEb
http://www.okiebenz.com

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread Scott Ritchey
Have the fuel lines to the tank been disconnected?  If so, the supply and
return may have gotten switched and that would produce odd symptoms at low
fuel levels.

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of andrew strasfogel
Sent: Sunday, October 05, 2008 13:00
To: Mercedes Discussion List
Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD

Folks,
I added 3 gals of diesel last night, making the tank roughly 1/3 full, and
then this morning went for my usual 12 mile spin on 270 to the squash club.
 Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack of
sluggishness is definitely associated with low fuel reserves (less than 1/4
full).

On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:

> Another question - is it normal for there to be a release of
>> air (or vacuum) when I remove the fuel filler cap?
>>
>
> A little, in my experience.  But a great gushing whoosh
> is not so good.
>
> -- Jim
>
>
>
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread Allan Streib
"andrew strasfogel" <[EMAIL PROTECTED]> writes:

> is it normal for there to be a release of air (or vacuum) when I
> remove the fuel filler cap?

I've never noticed this with my 300D

Allan
-- 
1983 300D

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread andrew strasfogel
Folks,
I added 3 gals of diesel last night, making the tank roughly 1/3 full, and
then this morning went for my usual 12 mile spin on 270 to the squash club.
 Exiting uphill on the cloverleaf ramp, I had no problems.  So the attack of
sluggishness is definitely associated with low fuel reserves (less than 1/4
full).

On Sun, Oct 5, 2008 at 10:29 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:

> Another question - is it normal for there to be a release of
>> air (or vacuum) when I remove the fuel filler cap?
>>
>
> A little, in my experience.  But a great gushing whoosh
> is not so good.
>
> -- Jim
>
>
>
> ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
> For used parts email [EMAIL PROTECTED]
>
> To Unsubscribe or change delivery options go to:
> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread Jim Cathey

Another question - is it normal for there to be a release of
air (or vacuum) when I remove the fuel filler cap?


A little, in my experience.  But a great gushing whoosh
is not so good.

-- Jim


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-05 Thread Mitch Haley

andrew strasfogel wrote:

I have a can of Biobor algaecide that came with the car but the directions
are quite complicated, not to mention hard to read, as they are printed in a
twisted way around the can.



This stuff?
http://www.silmid.com/biobor/biocide.htm


Incidentally, the inline fuel filter is sparkling clear - not a speck of
crud in it.  Another question - is it normal for there to be a release of
air (or vacuum) when I remove the fuel filler cap?


It is if your tank vent is clogged. I bet the mud wasps have paid your tank vent 
a visit, doesn't sound like you need the biobor. Algae clogs the inline filter 
quite visibly in my 300SD when I'm afflicted.


Mitch.

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-04 Thread andrew strasfogel
I have a can of Biobor algaecide that came with the car but the directions
are quite complicated, not to mention hard to read, as they are printed in a
twisted way around the can.  Has anyone used this stuff?  I currently have
about 5 gallons in the tank (1983 300TD), or about 1/3 of a tank.
Otherwise, I started it up today after a couple days rest and it ran very
sluggishly for the first minute, then eased into normal operation (all flat
roads).  I ordered a tank strainer and install that   after the Biobor
treatment, if i can figure out how to do it.

Incidentally, the inline fuel filter is sparkling clear - not a speck of
crud in it.  Another question - is it normal for there to be a release of
air (or vacuum) when I remove the fuel filler cap?

Thanks to all for your great ideas and input.

Andrew
On Fri, Oct 3, 2008 at 7:00 PM, Mitch Haley <[EMAIL PROTECTED]> wrote:

> Alex Chamberlain wrote:
>
>> In the USA, every boat supply store sells it, but that's small
>> consolation for those on the list who don't live in coastal states, I
>> guess.
>>
>
> I failed in marine stores in Michigan, had to get my Bosch injection shop
> to order some for me.
>
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Mitch Haley

Alex Chamberlain wrote:

In the USA, every boat supply store sells it, but that's small
consolation for those on the list who don't live in coastal states, I
guess.


I failed in marine stores in Michigan, had to get my Bosch injection shop to 
order some for me.


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Peter Frederick
Sounds a lot like a plugged tank screen --as the fuel level gets low,  
all the slop collects in the bottom of the tank.  Driving on the  
highway pulls huge amounts of fuel through the filters, even though  
you aren't using much, so the screen plugs and fuel delivery drops  
way down.  As the lift pump slows, fuel collect in the filters and  
you have normal power.


Time to remove and clean the tank, and replace the screen.

Peter

On Oct 2, 2008, at 10:43 PM, andrew strasfogel wrote:

The last two times I took my 1983 300TD on the highway for some  
high speed
driving, when exiting to local roads the car lost nearly all its  
power as I
slowed down, barely made it up the exit ramp, and crept along at 3  
mph until
I reached a level surface.  Then it took off again like  a  
turbocharged bat

out of hell.
Is it a coincidence that this happened with the fuel gauge at  
1/4?.  The car

had sat for nearly three months while it was getting its drive train
transplant, but never had this problem until I started to take it  
on the
open road.  The main fuel filters are fine but I haven't replaced  
the fuel
tank strainer.  What I don't get is why it has these sluggo attacks  
only

after a trip on the open road.  Stop and go driving is not a problem.
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Loren Faeth
Stanadyne Biocide.  It should be available from shops that rebuild 
injection pumps.  My IP guy says almost every pump on his bench was 
killed by algae.


At 04:07 PM 10/3/2008, you wrote:

On Fri, Oct 3, 2008 at 2:09 PM, Euan <[EMAIL PROTECTED]> wrote:
> Finding a biocide was a bit tricky at the time  -- the fuel companies
> couldn't help (didn't want to admit they might have water in their fuel) --
> but I'm sure the treatments are more readily available now.

In the USA, every boat supply store sells it, but that's small
consolation for those on the list who don't live in coastal states, I
guess.

Alex

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Loren Faeth 



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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Loren Faeth
DON'T forget to replace all pieces of rubber hose between the tank 
and the main fuel filter, or else you might still have the 
problem.  The hose can look perfect and let air in the lines, but 
that is generally about the same effect as having a plugged fuel 
filter.  Your symptoms are more aligned with Max Dillon's remedy.  It 
is easier, so I'd try it first!


At 04:22 PM 10/3/2008, you wrote:
Hey Andrew, you have the whole weekend ahead of you. Report promptly 
on Monday.


Randy

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of andrew strasfogel
Sent: Friday, October 03, 2008 3:04 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD


So now I have to check the main and inline filters, unclog the tank vent
(supposedly requires dropping the fuel tank), clearing out the line to the
ALDA, and/or installing a new tank strainer.

On Fri, Oct 3, 2008 at 5:09 PM, Euan <[EMAIL PROTECTED]> wrote:

> Andrew
>
> I'm just catching up with this thread. Sorry if I'm covering old ground.
>
> I've experienced a similar power loss on the highway. My wagon simply ran
> out of grunt without prior warning of any kind.
>
> It was indeed algae in the fuel. Now I have a cheap clear plastic fuel
> filter fitted inline in the engine bay where I can inspect it regularly.
>
> Finding a biocide was a bit tricky at the time  -- the fuel companies
> couldn't help (didn't want to admit they might have water in their fuel) --
> but I'm sure the treatments are more readily available now.
>
> So, check your fuel filters!
>
> Euan
> CHCH
> NZ
>
> 1985 300TD 5-spd manual
> 213K mi
>
> My mechanic says to check for algae in the tank, or a clogged inline fuel
>> filter.  The awkward part is that to make the problem appear, I need to
>> drive at high speeds for X minutes, and the risk getting rear ended when I
>> slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
>> why the car performs flawlessly on hilly  terrain until I take it out for
>> a
>> 60+ mph spin.  Which of the suggested underlying causes best dovetails
>> with
>> this observed behavior?
>>
>>
>
>
>  ___
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Loren Faeth 



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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Rolf
There is also the odd chance that your overboost protection is kicking
in. I vote for algae/filter related items first.

-Rolf

andrew strasfogel wrote:
> So now I have to check the main and inline filters, unclog the tank vent
> (supposedly requires dropping the fuel tank), clearing out the line to the
> ALDA, and/or installing a new tank strainer.
>
> On Fri, Oct 3, 2008 at 5:09 PM, Euan <[EMAIL PROTECTED]> wrote:
>
>   
>> Andrew
>>
>> I'm just catching up with this thread. Sorry if I'm covering old ground.
>>
>> I've experienced a similar power loss on the highway. My wagon simply ran
>> out of grunt without prior warning of any kind.
>>
>> It was indeed algae in the fuel. Now I have a cheap clear plastic fuel
>> filter fitted inline in the engine bay where I can inspect it regularly.
>>
>> Finding a biocide was a bit tricky at the time  -- the fuel companies
>> couldn't help (didn't want to admit they might have water in their fuel) --
>> but I'm sure the treatments are more readily available now.
>>
>> So, check your fuel filters!
>>
>> Euan
>> CHCH
>> NZ
>>
>> 1985 300TD 5-spd manual
>> 213K mi
>>
>> My mechanic says to check for algae in the tank, or a clogged inline fuel
>> 
>>> filter.  The awkward part is that to make the problem appear, I need to
>>> drive at high speeds for X minutes, and the risk getting rear ended when I
>>> slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
>>> why the car performs flawlessly on hilly  terrain until I take it out for
>>> a
>>> 60+ mph spin.  Which of the suggested underlying causes best dovetails
>>> with
>>> this observed behavior?
>>>
>>>
>>>   
>>  ___
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>   


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread R A Bennell
Hey Andrew, you have the whole weekend ahead of you. Report promptly on Monday.

Randy

-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of andrew strasfogel
Sent: Friday, October 03, 2008 3:04 PM
To: Mercedes Discussion List
Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD


So now I have to check the main and inline filters, unclog the tank vent
(supposedly requires dropping the fuel tank), clearing out the line to the
ALDA, and/or installing a new tank strainer.

On Fri, Oct 3, 2008 at 5:09 PM, Euan <[EMAIL PROTECTED]> wrote:

> Andrew
>
> I'm just catching up with this thread. Sorry if I'm covering old ground.
>
> I've experienced a similar power loss on the highway. My wagon simply ran
> out of grunt without prior warning of any kind.
>
> It was indeed algae in the fuel. Now I have a cheap clear plastic fuel
> filter fitted inline in the engine bay where I can inspect it regularly.
>
> Finding a biocide was a bit tricky at the time  -- the fuel companies
> couldn't help (didn't want to admit they might have water in their fuel) --
> but I'm sure the treatments are more readily available now.
>
> So, check your fuel filters!
>
> Euan
> CHCH
> NZ
>
> 1985 300TD 5-spd manual
> 213K mi
>
> My mechanic says to check for algae in the tank, or a clogged inline fuel
>> filter.  The awkward part is that to make the problem appear, I need to
>> drive at high speeds for X minutes, and the risk getting rear ended when I
>> slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
>> why the car performs flawlessly on hilly  terrain until I take it out for
>> a
>> 60+ mph spin.  Which of the suggested underlying causes best dovetails
>> with
>> this observed behavior?
>>
>>
>
>
>  ___
> http://www.okiebenz.com
> For new parts see official list sponsor: http://www.buymbparts.com/
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Alex Chamberlain
On Fri, Oct 3, 2008 at 2:09 PM, Euan <[EMAIL PROTECTED]> wrote:
> Finding a biocide was a bit tricky at the time  -- the fuel companies
> couldn't help (didn't want to admit they might have water in their fuel) --
> but I'm sure the treatments are more readily available now.

In the USA, every boat supply store sells it, but that's small
consolation for those on the list who don't live in coastal states, I
guess.

Alex

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
So now I have to check the main and inline filters, unclog the tank vent
(supposedly requires dropping the fuel tank), clearing out the line to the
ALDA, and/or installing a new tank strainer.

On Fri, Oct 3, 2008 at 5:09 PM, Euan <[EMAIL PROTECTED]> wrote:

> Andrew
>
> I'm just catching up with this thread. Sorry if I'm covering old ground.
>
> I've experienced a similar power loss on the highway. My wagon simply ran
> out of grunt without prior warning of any kind.
>
> It was indeed algae in the fuel. Now I have a cheap clear plastic fuel
> filter fitted inline in the engine bay where I can inspect it regularly.
>
> Finding a biocide was a bit tricky at the time  -- the fuel companies
> couldn't help (didn't want to admit they might have water in their fuel) --
> but I'm sure the treatments are more readily available now.
>
> So, check your fuel filters!
>
> Euan
> CHCH
> NZ
>
> 1985 300TD 5-spd manual
> 213K mi
>
> My mechanic says to check for algae in the tank, or a clogged inline fuel
>> filter.  The awkward part is that to make the problem appear, I need to
>> drive at high speeds for X minutes, and the risk getting rear ended when I
>> slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
>> why the car performs flawlessly on hilly  terrain until I take it out for
>> a
>> 60+ mph spin.  Which of the suggested underlying causes best dovetails
>> with
>> this observed behavior?
>>
>>
>
>
>  ___
> http://www.okiebenz.com
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Euan

Andrew

I'm just catching up with this thread. Sorry if I'm covering old ground.

I've experienced a similar power loss on the highway. My wagon simply 
ran out of grunt without prior warning of any kind.


It was indeed algae in the fuel. Now I have a cheap clear plastic fuel 
filter fitted inline in the engine bay where I can inspect it regularly.


Finding a biocide was a bit tricky at the time  -- the fuel companies 
couldn't help (didn't want to admit they might have water in their fuel) 
-- but I'm sure the treatments are more readily available now.


So, check your fuel filters!

Euan
CHCH
NZ

1985 300TD 5-spd manual
213K mi


My mechanic says to check for algae in the tank, or a clogged inline fuel
filter.  The awkward part is that to make the problem appear, I need to
drive at high speeds for X minutes, and the risk getting rear ended when I
slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
why the car performs flawlessly on hilly  terrain until I take it out for a
60+ mph spin.  Which of the suggested underlying causes best dovetails with
this observed behavior?
  



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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
This makes perfect sense.  Now all I need is to RTFM and locate that d*arned
tank vent.

Or I could ask if any 300TD owners have BTDT (e.g., unclogged a W123 wagon
fuel tank vent).

On Fri, Oct 3, 2008 at 12:24 PM, Max Dillon <[EMAIL PROTECTED]>wrote:

> Andrew,
>
> If the tank vent is plugged, at highway speed a vacuum will build in the
> tank because the time-rate of fuel consumption is high.
>
> When you slow down and engine RPM drops, the fuel lift pump cannot overcome
> the vacuum in the tank and so your engine is starved of fuel.
>
> Test: Drive at high speed long enough to cause the condition based on past
> experience, then pull over and quickly remove the fuel cap.  If you hear a
> 'whoosh' of air, the tank vent is plugged.
>
>
> --
> Very respectfully,
> /s/
> Max Dillon
> '87 300TD, 310k miles
> Charleston SC
> Digest lurker (on and off) since
> 2001
>  ___
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
I recently replaced my (leaky) primer pump with the Bosch all-in-one type.

On Fri, Oct 3, 2008 at 12:13 PM, Mitch Haley <[EMAIL PROTECTED]> wrote:

> andrew strasfogel wrote:
>
>> I have never seen or worked on either the intake manifold or the ALDA.
>>  What
>> does this hose look like?  If is a fuel or vacuum hose?
>>
>
> ALDA = square thing on top of IP towards the rear, may have an adjuster
> screw on top, or may have a tamperproof cap with the screw under it. The
> hose goes from the ALDA to the firewall where there's a switchover valve
> intended to vent the pressure to atmosphere if the turbo goes overboost.
> If that hose doesn't build pressure at the ALDA, the car will run like a
> non turbo. With vacuum in the hose, (don't ask me how that could happen) it
> might be weaker than a 240D.
>
> BTW, while you're poking around the IP, take a look at the hand primer
> pump. Does it have a white disk at the top for a handle, or a long black cap
> over it that serves as a pump handle?
> The old ones with the white disk can leak air into the IP and cause severe
> loss of power. Unscrew the knurled disk to unlock the pump, and give it a
> few strokes. Does diesel fuel leak out?
> Here's what the new one looks like, it's upside down in the picture:
> http://img.eautopartscatalog.com/hires/D2010268357BOS.JPG
>
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Scott Ritchey
Check this site:

http://dieselgiant.com/mercedesaldaboostsystemservi.htm



-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of andrew strasfogel
Sent: Friday, October 03, 2008 11:43
To: Mercedes Discussion List
Subject: Re: [MBZ] Weird attack of sluggishness - W123 300TD

I have never seen or worked on either the intake manifold or the ALDA.  What
does this hose look like?  If is a fuel or vacuum hose?

Yes, I am that ignorant.

On Fri, Oct 3, 2008 at 11:30 AM, Rich Thomas <
[EMAIL PROTECTED]> wrote:

> Check that hose from the back of the intake manifold to the ALDA, see if
it
> is clogging up with something at high speed, then releasing when you slow
> down.  That's what happened to the 300SD, Marshall immediately diagnosed
it.
>
> --R
>
>
> Mitch Haley wrote:
>
>> You say you looked in the clear inline filter under the hood and it
wasn't
>> clogged?
>> I'd do like Jim said, pull the cap, see if it's under vacuum, and hope
the
>> tank hasn't imploded down to 10 gallon capacity.
>>
>> ___
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>>
>>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Mitch Haley

andrew strasfogel wrote:

I have never seen or worked on either the intake manifold or the ALDA.  What
does this hose look like?  If is a fuel or vacuum hose?


ALDA = square thing on top of IP towards the rear, may have an adjuster screw on 
top, or may have a tamperproof cap with the screw under it. The hose goes from 
the ALDA to the firewall where there's a switchover valve intended to vent the 
pressure to atmosphere if the turbo goes overboost.
If that hose doesn't build pressure at the ALDA, the car will run like a non 
turbo. With vacuum in the hose, (don't ask me how that could happen) it might be 
weaker than a 240D.


BTW, while you're poking around the IP, take a look at the hand primer pump. 
Does it have a white disk at the top for a handle, or a long black cap over it 
that serves as a pump handle?
The old ones with the white disk can leak air into the IP and cause severe loss 
of power. Unscrew the knurled disk to unlock the pump, and give it a few 
strokes. Does diesel fuel leak out?

Here's what the new one looks like, it's upside down in the picture:
http://img.eautopartscatalog.com/hires/D2010268357BOS.JPG

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Max Dillon
Andrew,

If the tank vent is plugged, at highway speed a vacuum will build in the tank 
because the time-rate of fuel consumption is high.

When you slow down and engine RPM drops, the fuel lift pump cannot overcome the 
vacuum in the tank and so your engine is starved of fuel.

Test: Drive at high speed long enough to cause the condition based on past 
experience, then pull over and quickly remove the fuel cap.  If you hear a 
'whoosh' of air, the tank vent is plugged.


--
Very respectfully, 
/s/ 
Max Dillon 
'87 300TD, 310k miles 
Charleston SC 
Digest lurker (on and off) since 
2001 
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Rich Thomas
There is a (likely formerly) clear plastic tube that runs from a fitting 
on the very back of the intake manifold, right up against the firewall, 
across the firewall thence to the ALDA, a boost pressure signal conveyor 
that controls how much fuel gets squirted, I guess.  Or an overboost 
protection signal or something that controls how much fuel gets squirted 
(or not).  Anyway, if that thing gets clogged (likely stuff that gets 
stuck in the little fitting on the intake manifold, inside) you have to 
take it off that fitting and then stick a wire or something in there to 
sorta ream it out.  Or maybe that hose is cracked, broken, looks like 
some Home Depot rigid poly would work OK as it is just a hose, and the 
Benz part number is obscure.  It takes about 5 min to do that, worth a try.


--R

andrew strasfogel wrote:

I have never seen or worked on either the intake manifold or the ALDA.  What
does this hose look like?  If is a fuel or vacuum hose?

Yes, I am that ignorant.

On Fri, Oct 3, 2008 at 11:30 AM, Rich Thomas <
[EMAIL PROTECTED]> wrote:

  

Check that hose from the back of the intake manifold to the ALDA, see if it
is clogging up with something at high speed, then releasing when you slow
down.  That's what happened to the 300SD, Marshall immediately diagnosed it.

--R


Mitch Haley wrote:



You say you looked in the clear inline filter under the hood and it wasn't
clogged?
I'd do like Jim said, pull the cap, see if it's under vacuum, and hope the
tank hasn't imploded down to 10 gallon capacity.

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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
I have never seen or worked on either the intake manifold or the ALDA.  What
does this hose look like?  If is a fuel or vacuum hose?

Yes, I am that ignorant.

On Fri, Oct 3, 2008 at 11:30 AM, Rich Thomas <
[EMAIL PROTECTED]> wrote:

> Check that hose from the back of the intake manifold to the ALDA, see if it
> is clogging up with something at high speed, then releasing when you slow
> down.  That's what happened to the 300SD, Marshall immediately diagnosed it.
>
> --R
>
>
> Mitch Haley wrote:
>
>> You say you looked in the clear inline filter under the hood and it wasn't
>> clogged?
>> I'd do like Jim said, pull the cap, see if it's under vacuum, and hope the
>> tank hasn't imploded down to 10 gallon capacity.
>>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Rich Thomas
Check that hose from the back of the intake manifold to the ALDA, see if 
it is clogging up with something at high speed, then releasing when you 
slow down.  That's what happened to the 300SD, Marshall immediately 
diagnosed it.


--R

Mitch Haley wrote:
You say you looked in the clear inline filter under the hood and it 
wasn't clogged?
I'd do like Jim said, pull the cap, see if it's under vacuum, and hope 
the tank hasn't imploded down to 10 gallon capacity.


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Mitch Haley

You say you looked in the clear inline filter under the hood and it wasn't 
clogged?
I'd do like Jim said, pull the cap, see if it's under vacuum, and hope the tank 
hasn't imploded down to 10 gallon capacity.


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
Jim, you really are a genius.  Just don't let it go to your head.

My mechanic says to check for algae in the tank, or a clogged inline fuel
filter.  The awkward part is that to make the problem appear, I need to
drive at high speeds for X minutes, and the risk getting rear ended when I
slow down to a crawl while on the (uphill) exit ramp.  What I don't get is
why the car performs flawlessly on hilly  terrain until I take it out for a
60+ mph spin.  Which of the suggested underlying causes best dovetails with
this observed behavior?

On Fri, Oct 3, 2008 at 9:56 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:

>  Where is the tank vent?
>>
>
> Most of them are down by the left rear axle, from
> what I've seen.  It's a pressure/vacuum release
> valve in a weird little rubber housing.  It'd be
> easy proof, though, just pop the filler cap when
> it's acting up to see if it gets all better!
>
>
> -- Jim
>
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread Jim Cathey

Where is the tank vent?


Most of them are down by the left rear axle, from
what I've seen.  It's a pressure/vacuum release
valve in a weird little rubber housing.  It'd be
easy proof, though, just pop the filler cap when
it's acting up to see if it gets all better!

-- Jim


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-03 Thread andrew strasfogel
Where is the tank vent?

On Fri, Oct 3, 2008 at 1:23 AM, Jim Cathey <[EMAIL PROTECTED]> wrote:

>  tank strainer.  What I don't get is why it has these sluggo attacks only
>> after a trip on the open road.  Stop and go driving is not a problem.
>>
>
> Clogged tank vent causing a vacuum after sustained runs?
>
> -- Jim
>
>
>
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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-02 Thread Jim Cathey
tank strainer.  What I don't get is why it has these sluggo attacks 
only

after a trip on the open road.  Stop and go driving is not a problem.


Clogged tank vent causing a vacuum after sustained runs?

-- Jim


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Re: [MBZ] Weird attack of sluggishness - W123 300TD

2008-10-02 Thread Scott Ritchey
Clogged fuel filter?
EGR stuck open?
Something wrong with boost pressure to ALDA?
Fuel supply and return lines reversed?

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
On Behalf Of andrew strasfogel
Sent: Thursday, October 02, 2008 23:44
To: Mercedes Discussion List
Subject: [MBZ] Weird attack of sluggishness - W123 300TD

The last two times I took my 1983 300TD on the highway for some high speed
driving, when exiting to local roads the car lost nearly all its power as I
slowed down, barely made it up the exit ramp, and crept along at 3 mph until
I reached a level surface.  Then it took off again like  a turbocharged bat
out of hell.
Is it a coincidence that this happened with the fuel gauge at 1/4?.  The car
had sat for nearly three months while it was getting its drive train
transplant, but never had this problem until I started to take it on the
open road.  The main fuel filters are fine but I haven't replaced the fuel
tank strainer.  What I don't get is why it has these sluggo attacks only
after a trip on the open road.  Stop and go driving is not a problem.
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[MBZ] Weird attack of sluggishness - W123 300TD

2008-10-02 Thread andrew strasfogel
The last two times I took my 1983 300TD on the highway for some high speed
driving, when exiting to local roads the car lost nearly all its power as I
slowed down, barely made it up the exit ramp, and crept along at 3 mph until
I reached a level surface.  Then it took off again like  a turbocharged bat
out of hell.
Is it a coincidence that this happened with the fuel gauge at 1/4?.  The car
had sat for nearly three months while it was getting its drive train
transplant, but never had this problem until I started to take it on the
open road.  The main fuel filters are fine but I haven't replaced the fuel
tank strainer.  What I don't get is why it has these sluggo attacks only
after a trip on the open road.  Stop and go driving is not a problem.
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