Thread: Oil Pump Wear

Originally Posted by stevo

another option would be to lap or skim the surface to close up the gap, we have done this with Hydraulic gear pumps when the flow rates drop off. depends if the pump can be removed and not sure of V8 setup.

Possible but difficult as the surface is set down inside edges about 5 or 6 mm deep. I did take the grooves out of the flat cover. The steel gears of the oil pump are also very grooved. It appears as if the motor had a few cups of fine sand tipped into it as the vehicle was part of a legal dispute before I bought it. The sump had a half inch of sand set in the bottom. The pump is the first thing to pick up the sand and has suffered the worst of all the moving parts. Interestingly the pistons and bores are still like new, pistons still show original machining marks. The cam and the bearing shells have also suffered. The crank has a few fine grooves but is reusable.