GM 19210599 Pump Asm,Oil (W/ Screen)

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Take out the oil pan. Remove the pump-to-rear main bearing cap bolt while supporting the oil pump. There is a single bolt that holds the oil pump to the rear main cap. Take out the bolt, then take out the oil pump. Drop it down and remove with the pump driveshaft. For almost all models, an oil pump driveshaft aligns with an oil pump shaft using a rigidly-hard nylon sleeve. Put this sleeve on the oil pump driveshaft. If it is not there, look for its pieces in the oil pan, take them out from there and get a new one for use on an oil-pump driveshaft. Examine whether or not damage or looseness exist in both the screen and pickup tube too much of which can make them fit tightly at all to the oil-pump itself . In case you have a new one, please ensure that this item has been connected to a relevant place within an engine . Place it over an engine and ensure that upper slot of drive shaft fits into lower tang of distributor shaft . The distributor drives the oil pump; therefore, good mating is important between these components. Fasten a mounting bolt and tighten it until it reaches required torque. Lastly mount your pan back onto your engine.

Remove the oil pump.