I have found that it is best to take all the plugs out before starting
the compression check. If the engine has set for any length of time a
squirt of oil into each cylinder will help achieve correct settings.
Removing all the plugs will prevent any possibility of dieseling.
Joe C.
-----Original Message-----
From: owner-triumphs@autox.team.net
[mailto:owner-triumphs@autox.team.net] On Behalf Of pethier@isd.net
Sent: Monday, August 15, 2005 2:47 PM
To: ZoboHerald@aol.com; triumphs
Subject: Re: Compression test how to
> And (please, someone, correct me if I'm wrong), it's a
> good idea to perform such a test on a thoroughly warmed-up
> engine.
Just make sure it is not an overheated car with carbon in
the cylinders. Many years ago I had my neighbor's Chev
6-cylinder in one day trying to figure out what was wrong
with it. I was using the push-in style of compression
checker. On maybe the third cylinder I checked, the darn
thing dieseled! I should have been wearing shooter's muffs.
There was a sound like a .45 automatic and my hand was
pushed back by the tester. Fair stopped my heart. I walked
around for a while with my ears ringing like after a Spinal
Tappets concert.
Phil Ethier
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