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compression test cold

To: mgsdigest@us.ibm.com
Subject: compression test cold
From: "James Laukaitis" <jim5@us.ibm.com>
Date: Mon, 25 Feb 2002 14:54:34 -0500
Listers,

      Don't beat on me too hard on this one but I have a question. I have
the carbs off the BGT, so it won't run, but I wanted to do a compression
test, so I did. I wanted to see if there are huge discrepancies between the
pistons. I figure I can get a general idea. I get (in psi) 130, 115, 135,
130 from front to back, that is radiator to firewall. The test looks pretty
good considering. I was looking for a bad cylinder, with a large
discrepancy (ie. 130, 125, 87, 130). I know the working compression (high)
should be 160psi. I think I can get close to that with the engine running.
Can I consider this pretty much valid, or am I really off base here and
cannot count this info at all?

Thanks,

Jim Laukaitis
'67 BGT
email: jim5@us.ibm.com
In the silence I hear my son crying.

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