triumphs
[Top] [All Lists]

Compression tests

To: triumphs@autox.team.net
Subject: Compression tests
From: "Dean Mericas" <dmericas@limno.com>
Date: Mon, 14 Oct 1996 07:52:28 EST
Comments: Authenticated sender is <dmericas@limno.com>
Organization: Limno-Tech, Inc.
Priority: normal
The compression readings I get in my TR4 fall within the range of
162 - 165.  Based on the information presented by others, the
expected pressure is: 

       P = (CR x 14.7) - 14.7

Using 165 psi and solving for CR, I get 10.2, which seems pretty
high for a stock TR engine.

Am I doing something wrong here?  Could it be a matter of an
inaccurate compression gauge (Sears best)? Why doesn't the Bentley
manual list expected compression readings along with all of the
other specifications?  Should I simply be thankful that I have
compression at all and be quiet? 
------------------------------------------------
Dean Mericas
1965 TR4 (CT37089L)
1988 Saab 900S
1991 Saab 9000T

<Prev in Thread] Current Thread [Next in Thread>