This procedure involves complete removal of
Timing Chains and sprockets and to begin, the oil pan, wind age tray and the pick-up tube should be removed. Last, undo the primary timing chain tensioner and oil pump bolts and then the tensioner itself. Subsequently, remove all the remaining bolts of the oil pump and then, carefully taping on the oil pump housing off the crankshaft flats in order for the oil pump to be removed from the context of the engine. For example, to perform an inspection of the oil pump, twist the cover and quickly lift it up to remove it, next have all the components cleaned with a solvent and examine for wear or damage. Watch out that the oil pressure relief valve and spring are part of the oil pump housing; pull it out and the oil pump is shot and you'll have to put in an all new assembly. Use a straightedge, feeler gauge, and micrometer to make measurements of cover flatnes, outer rotor diameter and thickness, inner rotor thickness, outer rotor- body distance, inner rotor-to-outer rotor tip distance, and side clearances. It should be noted that, if any of the mentioned measures exceeds certain parameters, the oil pump assembly should be replaced. To prepare the oil pump, apply petroleum jelly into the cavities present around the rotor and bolt the pump in place ensuring all nuts are tightened to the recommended torque. For installation, slide the flats of the clutch rotor into the crankshaft flats and then fit the oil pump into place against the block. Lastly, snap the primary timing chain tensioner over the oil pump, put the pump-to-block bolts back in and tighten the oil pump and primary timing chain tensioner bolts to the required torque in steps from step two.