Toyota 15100-0A040 Pump Assembly, Oil

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First of all, detach the timing chain, crankshaft sprocket, and oil pump drive chain. Next, scrape off the sealant from the pump body and engine block. Also, check the oil pump and chain for damage. For installation, you can lubricate the pump cavity, place it with a new gasket, and tighten the bolts.

First of all, to remove the oil pump, you can take off the oil pan, timing belt, lower timing belt idler pulley, and crankshaft sprocket. Also, remove the oil pick-up tube, alternator, compressor bracket, power steering pump adjusting bar, and lower timing belt idler pulley. Detach the oil pump, and remove the O-ring and oil pressure relief valve components. When you are installing the oil pump make sure you grease the seal's outer edge and insert it into place. Lubricate the oil pressure relief valve with engine oil and install the valve components.

The first step is to remove the timing chain and the crankshaft sprocket.

Clean all components with solvent, then inspect them for wear and damage. Check that the oiled relief valve falls easily through its bore without sticking.

Recheck the engine oil level.

Apply a coat of petroleum jelly to the pump drive and driven rotors, then place the two rotors into position in the timing chain cover. Make sure that the pump marks (dimples) are facing out, toward the pump cover and away from the timing chain cover.

Remove the crankshaft sprocket.