Compression Test Results

S

superalltrac

New member
So guys I just did a test on my engine and the results for all 4 cylinders are 140-142 psi dry, after a few drops of oil up to 160 psi give or take. Let's hear what you guys have to say on what to do.

thx :shoots:
 
G

Gary

Moderator
Look fine to me, little low but still in the spec.

ST185 compression spec:
164 psi or more
minimum: 128 psi.
diff between each cylinder: 14 psi or less
 
T

toayoztan

Moderator
Looks a little low to me too. the wet test jumped a bit, but not enough to have blown piston rings (i believe it has to be around a 30psi jump?). Anyway, I guess it just suggests you have a bit weak piston rings...not blown though.

Bryan
 
S

superalltrac

New member
thx guys.
Chris, no real plans just checking on the shape of the engine. I'll probably drive it till it dies then rebuild everything.
 
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