What is oil pump Sumping?
Sumping, if you don’t know, is the accumulation of oil in the bottom of the crankcase when the engine is run at high speeds for long distances. Sumping causes oil aeration, loss of power and excessive stress on engine parts, enough to actually break them.
Are M8 engines reliable?
I’ve known people that have put over 100,000 miles on every thing Harley has built in the last 30 years. The new M8 will probably be good for 200,000 miles before an overhaul, in my opinion it’s the best motor they have ever built.
What should I change in my oil pump on a Harley Davidson?
Change your oil and filter in the engine, change the tranny/primary fluid. No matter what you paid for the bike, this is good insurance. For recommended fluids, see here: Remember that the Sportster has one fluid for the primary AND tranny.
Can a high flow oil pump be replaced?
If you have purchased a high-flow oil pump, follow the manufacturer’s installation procedures. They should be bolt in with the proper fitment, and an OEM replacement will go back on just as the old came off. You may not need to actually replace the oil pump, but give it a good cleaning.
Can a Sportster Evo have an oil pump problem?
Also, double check your manual to see if the Sportster EVO has a lifter oil supply screen that needs to be cleaned every time you change engine oil. Thanks for the answers so far. This bike is a 1984 fxrdg. I was just wondering if these evo motors had oil pump problems.
What should the oil pressure be on a Harley Davidson?
This will at least give you a good indication if the noise you hear is from the as mentioned bad lifter etc or due to low pump pressure which could be involved. I would think 10 psi at idle and 30 psi at upper rpm would be nice to see.
How to install a twin cam oil pump on a Harley?
Step by step video on how to install the upgraded Harley-Davidson Twin Cam oil pump. We are upgrading the cams and and hydraulic cam plate in our next steps.
If you have purchased a high-flow oil pump, follow the manufacturer’s installation procedures. They should be bolt in with the proper fitment, and an OEM replacement will go back on just as the old came off. You may not need to actually replace the oil pump, but give it a good cleaning.
How does a high pressure oil pump work?
“A high-pressure pump is an oil pump with a higher pressure relief valve setting,” states Speed. “There are three ways to increase oil pressure: 1) Increase the viscosity of the oil (higher viscosity means greater resistance to flow). 2) Increase the pump size, which increases oil flow.
Which is better high volume or stock oil pump?
High-volume oil pumps have taller gears and typically flow about 15- to 20-percent-more oil than a comparable stock pump. In some applications, a high-flow pump is absolutely essential. Many late-model engines with cylinder deactivation (some LS engines) require more oil flow for the lifters and cam phasers, so these parts can do the job properly.