Gentlemen
If you could, just for a knowledge base, explain the step by step proceedures for the compression check.
I have done compression checks on gas engines. As well as a leak down check. I have both guages.
Now for the diesel compression check. Of course the guage range must be higher. So a different guage to buy.
My questions would be.

1. Test through glow plug holes or through the injectors holes? Benefits of either?
2 What about the injector lines. Should these not be removed ( if testing thru the glow plugs) to prevent the injector from affecting the pressure reading. And from the engine to prevent it from starting in a warm climate?
3. How do you prevent the injector pump from spraying fluid everywhere ( if the lines are removed)?
4. The pressure readings are of course subjective.

I guess what I'm asking here is for a blow by blow description of the procedure.

Dave

PS
Well!!! If I would take my own advise and refer to the SM job 01-010 compression test proceedure.

http://skinnerbox.steaky.org/123_DISK2/program/123-cd-index.html

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car