When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My oil pump needs replacing, and I was wondering what the difference is between a stock replacement and a "high volume" oil pump? What exactly does a "high volume" oil pump do?
A high volume pump produces 20% more oil flow by volume than a new stock pump and probably 30% more than a worn stock pump.
A HV pump will sometimes raise the oil pressure in a worn engine by a couple pounds but most of the time low oil pressure is due to worn bearings which need to be replaced.
Thanks, Torque1st. So, in your opinion, would it be in my best interest to go with a high volume oil pump over a standard replacement? Does pumping a higher volume of oil offer any benefits or drawbacks to an engine? My engine is in great shape. Actually, I suspect the screen/pickup is clogged, and I figured I might as well replace the oil pump while I am in there.
Had my truck for a while now, its a 2001 F-150 Crew, but lately it keeps dropping oil pressure. Once the truck is moving my pressure is usually good. But at idle speeds, it falls off, especially when the oil warms up. Changed oil pump 2x's and same result. What gives? Any ideas?
If you've got a high mileage engine and just replacing the oilpump, a high volume is what you want. BUT replace the pump drive shaft with a new heavy duty unit while you're at it. The HD pump drives are available thru any speed shop, online or thru some one like Jeg's or Summit Racing.
Had my truck for a while now, its a 2001 F-150 Crew, but lately it keeps dropping oil pressure. Once the truck is moving my pressure is usually good. But at idle speeds, it falls off, especially when the oil warms up. Changed oil pump 2x's and same result. What gives? Any ideas?