> Finally got around to checking compression on the TR3A. Here's how it
> fared:
> #1 - 130
> #2 - 120
> #3 - 130
> #4 - 125
>
> Love to know how this compares with other TRs.
Don't worry about a comparison. cheapo compression gauges are great
for testing relative compression among cylinders but may not be all
that accurate themselves. Different gauges can give different readings.
Also compression readings vary with the temperature of the metal. The
factory numbers are hot engine numbers (ow! ow! ow! scorched fingers!).
your numbers look good for a cold engine and the range is within the
acceptable variance range.
Next time you run compression and get a low jug squirt some oil into it
then run it again to see if the low compression is cause by the rings
or a valve. If it's a valve you can start a valve job kitty and maybe
schedule a valve job during the winter 10 or 20K miles from now.
T. J. Wakeman
1960 Land Rover 109 Dormobile owned since 1978
1961 Triumph TR3A owned since 1986, the new car
Check out the new British Cars Forum:
http://www.team.net/the-local/tiki-view_forum.php?forumId=8
|