Hi, I am a recent owner of an '82 300D turbodiesel. I had my mechanic do a compression test on it and here are the results:

#1 - 300
#2 - 300
#3 - 300
#4 - 350
#5 - 400

It seems weird to me that there would be so much variation. Do these numbers seem bad? The car has about 240k on it.

Thanks for any ideas.

It'd be nice if they were more even but all are good in relationship to reliable starting. I'd adjust the valves and keep on trucking!

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.

Thanks for the reply. I had the valves adjusted after the compression test, would be interested to know if it changed much. But probably not interested enough to pay for another test unless it seems warranted!

Car starts easily and runs great.

Always adjust the valves before a compression test. It makes a huge difference.

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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge