Carl,
According to the maintenance manuals I have, It's much more important that
they be consistent from cylinder to cylinder than be a high number. One
little handbook that's mostly TR3 with TR4 updates gives a 120 minimum.
I will check my readings tomorrow... the car transport arrives from Buffalo,
NY this afternoon with my new toy. When I was looking for cars, over the
last 4 months, the readings were typically around 150 with +/- 3 to 5 pounds
across all cylinders
Brian Sanborn
62 TR4 CT16260L - Groton, MA
sanborn@net1plus.com
-----Original Message-----
From: CarlSereda@aol.com <CarlSereda@aol.com>
To: triumphs@autox.team.net <triumphs@autox.team.net>
Date: Friday, August 07, 1998 7:36 PM
Subject: TR4 compression
>
>TR4 compression check....ok sound off please! - what are people getting on
>compression checks on their TR4 engines? I'm reading;
>137-120-151-139 and with a squirt of oil I get;
>145-140-167-151.
>no wonder my idle is bumpy and high revvings rattles my shifter!
>dang it - liners and pistons were brand new 100,000 miles ago! - do I dare
add
>piston ring oil additive? (still gonna be uneven - but higher lbs. at
least)
>Carl
>'64 TR4
>
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