Oil Pump Overhaul: Reassembly

Install idler gear and drive gear in pump body. Check gear end clearance by placing straightedge over gears and measure clearance between straightedge and gasket surface using feeler gauge. Clearance should be .005-.0075" (.013-.190 mm). If end clearance is near maximum reading, check for scores in cover that would bring total clearance over specified amount. Regulator valve-to-bore clearance should be .0025-.0050" (.064-.130 mm). Install pressure regulator valve, spring and cotter pin.