To remove the main
Timing Chain and crankshaft sprocket, it is not necessary to take out the secondary timing chains or the main timing chain tensioner/chain guide assembly; simply remove the tensioner and pivot the chain guide to the left to allow for the removal of the oil pump housing. Next, take off the
Oil Pans and the oil pump pick-up tube, then remove the oil pump-to-engine block bolts from the front of the engine. Gently pry the oil pump housing outward to clear the dowel pins on the engine block and remove it. For inspection, use a large Phillips screwdriver to take off the screws holding the front cover on the oil pump housing, clean all components with solvent, and inspect for wear and damage. Remove the oil pressure regulator cap, washer, springs, and valve, checking the sliding surface of the valve and the valve spring; if either is damaged, replace them as a set. Check the clearance of the oil pump components with a feeler gauge and compare the measurements, ensuring to pack the pump with petroleum jelly to prime it. If any clearance is excessive, replace the entire oil pump assembly, again packing it with petroleum jelly before assembly. For installation, use new gaskets on all disassembled parts and reverse the removal procedure, aligning the flats on the crankshaft with those on the oil pump gear, and tighten all fasteners to the specified torque, ensuring to replace the O-rings in the oil pump housing and engine block before installing the oil pan.