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Old 10-20-2012, 02:02 PM
azcromntic azcromntic is offline
Join Date: Oct 2010
Location: Colorado Springs
Posts: 130

I was able to pressurize all 6 cylinders with 70 psi of air and found the following:

Cylinder 2 and 5 seem to be okay. Maybe a teensy-tiny leak but I could not feel, hear or see a leak.

Cylinders 3 and 4 have an intake valve leak. I could feel air out of the throttle body. I could tell when I was on compression stroke because it was one revolution from TDC exhaust stroke and when I charged the cylinder the crank would turn CC and then I'd move the crank an 1/8th of a turn and charge the cylinder again and the crank would turn Clockwise. I turned it half way between those two points and locked the crank and did my test.

Cylinder 6, when charged with air, the air leaks around the Cylinder 1 hole even with the spark plug in Cylinder 1. Same thing happend with Cylinder 1 charged with air.

So, now I see why there is oil on top of the valve cover, on the spark plugs and in the area where the spark plug wires lay. I curious though what symptoms I should see from and intake valve leak.

What does that mean to the experts?
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