Neil--
Sorry for the delay, a work Monday interfered.
The good news about this motor is that it actually has oil pressure after running hot. Plus it is not a rust bucket.
Yes, my belief is that the motor sat for a while and got a bit caked up. In my experience after recovering with friends *too* many international harvester scouts & travel-alls from many years neglect under actual trees.... I'll let the MMO sit for a bit longer... then run for an hour or so and then change the oil. IMO, IH motors and A4 seem to be from a similar cloth regarding low compression and low RPM designs... and MMO is a wonderful tonic for maligned IH motors. Plus reading Don's archived newsletters on MMO for an actual engine flush, I have a bit of (justified) hope.
All--
Is there a thread on how to add a timing port on the flywheel cover of the engine? What I've found to date is a a photo or two of with a cover and slot cut into it. I'll use the the piston stop to gather the interference degrees and then map that back to TDC.
Thanks,
Ron
Portland, OR