Quote:
Originally Posted by Skyline
I think you've got that mixed up. The leakdown test pressurizes the cylinder. With valves supposedly closed. If air is leaking, it's generally going to come out in one of three spots; exhaust, intake, or down past the rings. If it goes down past the rings, think about where that air pressure is going to go to excape....
No I know how the leakdown test works, my logic is something else. He should be burning oil and smoking with bad rings.
Bad intake valve....you'll hear air in the intake. Bad exhaust valve...air in exhaust. He did not experience either of these. Obviously there are other places that air could leak out, for example a blown head gasket.
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No I know how the leakdown test works, my logic is something else. He should be burning oil and smoking with bad rings.
But he did the shade tree test, and I am curious why he is not burning anything. Think of it like this. If his valves aren't sealing properly, and the stem seals are leaking, he would hear air in the oil cap. Remember, the oil cap is on the valve cover, and the valves are right under it.
Did you hear air in the dipstik tube by the way?
Can this be head gasket?
Has the car overheated at some point?
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