leakdown test resulted in 5-10% is it bad or good??
ok im planning on buying a b18b1 motor with 89k miles on it. compression is 180 on all cylinders and the leakdown test resulted in 5-10% when cold. is that bad or is it good? by the way motor is all stock never been modified
Last edited by mynameizstitch; May 21, 2009 at 09:50 AM.
As far as I know, 5% +/- leakdown is reasonable for that age of motor. I have never done a leakdown test before but I can take a guess that those numbers get much better once the engine warms up and all the clearances get tighter.
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