Oil Pump
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Road Master
Joined: Jul 2008
Posts: 860
Likes: 416
From: In the mountains
Oil Pump
Had a lifter go bad scuffed a lobe on the cam. Pulled the the lifter blocks, and cam, cam chest looked good, breather gear and bore had no metal, look good. Oil was returning to the tank OK. My question is, can I flush the oil pump without disassembly?
HDF Community Team
Joined: Dec 2005
Posts: 5,404
Likes: 2,605
From: NC USA
If it makes you feel better though, while the cam cover is off, put a pan under the right side and with oil in the tank, turn the engine forward direction (by hand or rear wheel). That will push clean oil thru the pressure side and out the oil journals at 9 o'clock of the gasket surface of the cam chest. Don't forget to check the tappet screen if you haven't already.
Hook a hose to the return fitting and with a funnel or whatever you can fashion, let about a cup of oil drip back thru the pump overnight. That'll get the return side flushed.
Last edited by t150vej; May 26, 2020 at 05:01 PM. Reason: more info
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