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  #1  
Old 12-24-2002, 03:35 PM
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Join Date: Dec 2000
Location: Fairfax County, Virginia
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Troubleshooting Turbocharger on 603.970 engine

Seems like my 350 SDL is a bit slower these days ... no oil burning, great starting, etc.

Removed intake tract and desludged 6 months ago ... ugly mess - hope it is related to the early demise of the engines.

Without putting a pressure guage on, what can I do to determine if the turbocharger is working properly ... sounds like there are cars with turbos running at 100% and others at far lower efficiencies ... adjustments include the Alda, right? Check lines for oil and crud. How to check in a binary sense?

Thanks in advance!
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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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  #2  
Old 12-24-2002, 11:00 PM
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Join Date: Mar 1999
Location: Suwanee, GA, USA
Posts: 4,712
Go to the parts store and purchase a cheap boost pressure gauge that has good reading down low. I think you are looking for 5-7 psi. If it is there, you have a fueling problem. It isn't uncommon to see clogged filters. (Your car has 3 fuel filters if you count the one in the tank) Also, I have upped the mixutre of the anaroid many times after a few years.
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Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS
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  #3  
Old 12-28-2002, 12:55 PM
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Join Date: Dec 2000
Location: Fairfax County, Virginia
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Thanks, Benzmac.

CD calls for testing in three places ... looks like should "T" (although CD says "Y" it in) ... do I use enough hose to run in through window while driving, then?

Can you refer me to procedure for adjusting the aneroid or reference the CD in some way?

I may be imagining the reduced acceleration ... I have read in several threads the car should do 0-60 in around 12 seconds ... mine is more like about 18 seconds ...

Thanks, again for your help.
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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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  #4  
Old 01-01-2003, 07:14 PM
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Join Date: Oct 2001
Location: around Charlotte NC
Posts: 573
George,

My '87 had the same symptoms. Real slow... about 18-19 seconds 0-60. Found a plugged vacuum line (crud) to the fuel enrichment (ALDI?). Now it is back to 12-13 seconds 0-60.

Chuck
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  #5  
Old 01-01-2003, 08:55 PM
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Location: Fairfax County, Virginia
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Thanks CSchmidt ... will check those ASAP.
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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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  #6  
Old 01-01-2003, 10:17 PM
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Join Date: Dec 2000
Location: Fairfax County, Virginia
Posts: 856
OK, haven't gotten a gauge, yet, but did check all the vacuum lines for blockages ... no blockages ... had some extra nylon hose on hand so replaced 'em.

I replaced fuel filters a couple of years ago .... will give it a shot in a few days.

Thanks to everyone for their help.
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George Stephenson
1991 350 SDL (200K and she ain't bent, yet)
former 2002 E320 4Matic Wagon - good car
former 1985 300 CD - great car
former 1981 300 TD - good car
former 1972 280 SEL - not so good car
a couple of those diesel Rabbits ...40-45 mpg
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  #7  
Old 01-01-2003, 11:56 PM
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Join Date: Dec 2002
Location: Annapolis,Md
Posts: 431
Lightbulb

George - - Why not change the fuel filters AND the air filter. It's the easiest and cheapest way to begin. Maybe you're be lucky . I believe that it is what a diesel shop would do first when there is a power problem. Good Luck and let us know how you solve the problem
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