Originally Posted by sleeve
I did a cylinder leak down On three different cylinders I could hear a very slight leak of air past the exhuast valve

-mike-

Mike, Got thinking about this part. Where are you listening, tail pipe, exhaust manifold off, etc. Is it possible that the air noise you are hearing is not comming out the exahust valve of the pressurized cylinder but out an open exhaust valve of another cylinder via the crankcase?


BC
1960 Chevy C10 driver 261 T5 4.10 dana 44 power loc
1949 GMC 250 project in waiting
1960 C60 pasture art
Retired GM dealer tech. 1980 - 2022