dougknight
Well Known Member
Over the last six years I have watched #3 cylinder digress from 78/80 to 67/80 on the leak down test of my 0-320-D1A. Approximate hours of this range is 500 hrs TT in 2015 to 800 hrs TT in 2021. I always listen very closely at oil fill spout, air breather intake and exhaust as each cylinder is under pressure. #3 has been obnoxiously loud out the exhaust for the last 300-400hrs.
I'm thinking the trend is obvious and it is time to attempt lapping the exhaust valve before it gets worse. Just wondering what the brain trust would do.
doug knight
RV-9a , 90625
I'm thinking the trend is obvious and it is time to attempt lapping the exhaust valve before it gets worse. Just wondering what the brain trust would do.
doug knight
RV-9a , 90625