135 145 145 145 -- The 135 is a little low in
comparison to the other three. you have done half a
test, now you need to do a wet test to determine if it
is rings or valves that is bad. Put three or four
squirts of oil into the cylinder that you are checking
and do another compression test, if the compression
comes up it is the rings(leaking) if it stays the
same, its either a valve burnt or a air leak around
the head. The ten pounds difference is enough to make
a rough idle. Phil

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