Quote:

Air test another cylinder or two so that you can get a comparison to judge by. Make sure that the exhaust valve is closed, there shouldn't be any air out the exhaust.

There is often some air past the rings, especially the more pressure you use. But not a lot, which is why I suggested to do another cylinder or two for comparison. Use about the same amount of air pressure.

If the air continues out the exhaust, loosen that rocker to be sure that is not an issue.

Air out of the breather indicates a cylinder sealing issue, not necessarily the rings. And the exhaust air points to the exhaust valve sealing, not necessarily a burnt valve.

A little more driving probably won't hurt anything, but it is looking like pulling that head is becoming more and more likely.

Keep us posted.



I agree check another cylinder or two for comparison on whats leaking into your crankcase. Something is always going to leak past the rings. As noted there should be NO air escaping the valves.

Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street