AKJohne
Petty Officer 1st Class
- Joined
- Mar 26, 2017
- Messages
- 220
1996/97 5.7LX A1 gen 2, closed cooling 0K158784
Severe blow by and time to to rebuild. ~ 580 hours on a rebuild (PO), not original block.
Had head issues last season and tuliped a valve, replaced all the intake valves. Compression and leak down test were ok and piston (#3) looked ok.
Not original heads either.
However I suspect the oil rings have collapsed due to heat. Now burning oil... severely!
Going to pull the motor, and see if machine shop can bore to .060" over as it is currently at .040".
Question is can I go to .060 over or is that too thin for the cylinder walls?
Thanks
Severe blow by and time to to rebuild. ~ 580 hours on a rebuild (PO), not original block.
Had head issues last season and tuliped a valve, replaced all the intake valves. Compression and leak down test were ok and piston (#3) looked ok.
Not original heads either.
However I suspect the oil rings have collapsed due to heat. Now burning oil... severely!
Going to pull the motor, and see if machine shop can bore to .060" over as it is currently at .040".
Question is can I go to .060 over or is that too thin for the cylinder walls?
Thanks
Last edited: