Where you are when you do the compression test makes a difference. I live near
Denver (5280') and usually get between 125-140lb on my cars. If you are near
sea level, you will get different results. The next time I drive to the Gulf
coast I will take my compression gauge along and check the compression for
grins.
Dave
On Aug 10, 2004, at 7:57 PM, MotoPsyche@aol.com wrote:
> 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. High? Low? Average?
> Any
> concerns with the 10 psi difference? I have 87mm pistons and liners.
>
A few years ago I measured my TR4A and got:
cyl dry wet
1 190 190
2 190 190
3 170 170
4 180 190
I believe your 10 PSI difference is OK, the rule is 10%, I think.
Unless we were using the same compression gauge (or calibrated gauges),
I don't think one should read too much in comparative readings.
Check out the new British Cars Forum:
http://www.team.net/the-local/tiki-view_forum.php?forumId=8
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