After having the rod bearings and the crank shaft overhauled, installed over size bearings, replaced valve lifters, replaced compression and oil rings and installed a new cylinder head. Almost a new engine ..... I have started the engine up again.
It seems like there is still coming a knocking sound at approx 1000 RPM - not at idle 700 RPM and not over 1200.
The engine runs fine - plenty of power and has been running for 2-3 hours at different speeds with out change in the sound of noise - the oil pressure is 40 psi at idle and 60 psi at 4000 RPM
The sound is not metallic sound as with a spun bearing - more "dry" knocking - (a little like a diesel engine).
Can anybody tell me whether the description is normal (or what the problem is / could be) or should i fear another melt down ?
It seems like there is still coming a knocking sound at approx 1000 RPM - not at idle 700 RPM and not over 1200.
The engine runs fine - plenty of power and has been running for 2-3 hours at different speeds with out change in the sound of noise - the oil pressure is 40 psi at idle and 60 psi at 4000 RPM
The sound is not metallic sound as with a spun bearing - more "dry" knocking - (a little like a diesel engine).
Can anybody tell me whether the description is normal (or what the problem is / could be) or should i fear another melt down ?
