Re: oil pressure

Posted by PackardV8 On 2011/12/17 10:46:21

Grasp the shaft sticking out of the top of the pump and move it sideways to check for wear. Any good mechanic knows how to do this and can estimate the wear. Otherwise take it to a seasoned machinist and let him 'feel' for the wear. IIRC the service mnaual indiacates 0.004" service litmit for wear (which is a bit high).

Does the pump have an OPEN pressure relief valve port or the very late 56 pump with PLUGGED pressure relief port???