Thanks Bruce. I did the oil pressure test and with the engine at idle and normal opertemp I had 25 PSI and as the RPM's went up above 45 so it looks good.

I think I'll just install new rings and valve stem seals to stop the smoke although it's great to keep the flies away :).

The forklift is a 4fg20 and I'm looking for a service manual to purchase. Would you or anyone know where I might buy one? Thanks Bruce for taking the time to look up the info for me. Much appreciated. Paul in Newfoundland