[Healeys] 4 Cyl Compression Measurement
Greg Lemon
glemon at neb.rr.com
Tue Dec 1 16:56:21 MST 2009
For what it is worth when I rebuilt my 100 engine with .060" over 8.5/1
pistons and Le Mans cam I got readings in the neighborhood of 165-170 psi
across the four.
At 8.0/1 I would assume you owuld be slightly lower but in the ballpark, I
would think maybe in the 145-160 psi range with little variation from
cylinder to cylinder (I forget what is considered acceptable 2-3%, or maybe
5 psi or so on a rebuilt motor?) would be in the ballpark.
Greg Lemon
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