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Old 08-10-2005, 09:29 AM
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Join Date: Jun 2005
Location: NJ
Posts: 1,182
compression check?

noob here...
How is a compression check (or blowby check) done on diesels? Is the pressure guage inserted into the glow plug hole? What is the accepted presssures and diffs. between cylinders?

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Old 08-10-2005, 10:06 AM
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Join Date: Jun 2005
Location: Clinton, NJ
Posts: 122

Wow - I was just going to come onto here and look for compression test posts and right on top was this one...

From what i've read in the manual, you can test through the glow plug hole with no problem. I don't know the numbers off hand though.
'87 300D new to me
'85 300D Sold
'83 300cd Sold
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Old 08-10-2005, 10:10 AM
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Join Date: Sep 2001
Location: central Texas
Posts: 17,277
There are huge amounts of great info in the archives.. including the discussion of the glowplug/injector access question....

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