Cvo lifters
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Stage II
Joined: Aug 2014
Posts: 2
Likes: 0
From: mississippi
Cvo lifters
I have a 2008 road king cvo flhrse4. I had a lifter fail (roller came apart). I replaced lifters and cams and put it all back together. Started it up and knocking like crazy to be expected till lifters pump up but the oil light is on. Why. Will it stay on till lifters pump up or do I have a bad oil pump. I opened oil pump up and everything looked ok when I installed cams
Seasoned HDF Member
Joined: Jun 2017
Posts: 5,315
Likes: 4,272
From: Granville New York
Did take the oil pump apart and look at the gerators? They can break and your pump won't pump. Did you a count for all of the pins that were supposed to be in the roller? I'd pull the cam cover again and look the pump over really well, if that roller lost pins they went somewhere and it's usually not good. You can pop a pushrod cover and lift it up and look down on top of the lifters and see if there's at least oil to thst point. How long did you let it run? I know its painful to listen too while it seems like forever to pump up. You should hear it after a total rebuild...it took so long to pump up i was ready to tear it back down. I have the same bike btw. Any issues or problems you run into I've probably seen or read about all of them for these cvos lol.
Grand HDF Member
Joined: Mar 2007
Posts: 4,923
Likes: 266
From: Deep in the heart of New Jersey
I had a lifter wheel bearing on my '93 Ultra come apart years ago. I brought it to the local dealer. They pulled the rear valve cover and parts of the chewed up bearing made their way up to there. There's a good chance of having bits and pieces of the lifter plug up oil passageways, piston jets, and in the oil pump. You may have to disassemble the motor to clean it all out. I know this is not what you want to hear, but be ready if it is.,,,
Seasoned HDF Member
Joined: Jun 2010
Posts: 9,332
Likes: 3,873
From: Upstate New York
I have a 2008 road king cvo flhrse4. I had a lifter fail (roller came apart). I replaced lifters and cams and put it all back together. Started it up and knocking like crazy to be expected till lifters pump up but the oil light is on. Why. Will it stay on till lifters pump up or do I have a bad oil pump. I opened oil pump up and everything looked ok when I installed cams
Seasoned HDF Member
Joined: Jun 2006
Posts: 28,559
Likes: 3,955
From: Vermont
Make sure an o-ring on the passages behind the plate is not pinched and blocking the port. Also, did you properly align the pump on reinstall and measure to make sure the gerotor stands proud (wavy washer)?
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Road Captain
Joined: Mar 2016
Posts: 600
Likes: 231
From: Dewey, Arizona 86327
Yeah, hate to say it, but anything fails like that that can spread fragments around means a complete teardown. Careful check on all the lower end bearings and clean all the oil passages. Then a careful build checking everything as it goes together. Too much chance of a plugged passage or metal chips in a main or rod bearing. Having done it once or twice, I can say you do NOT want to be aboard when a rod comes through the case and dumps hot oil in front of the back tire while everything seizes up. Might almost be better to do some kind of engine swap.
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Seasoned HDF Member
Joined: Jun 2017
Posts: 5,315
Likes: 4,272
From: Granville New York
this will ruin your whole day...luckily all the pieces stayed right there. I ended up with a shifted crank and a bad rod bearing later that season, not sure if this helped bring that on or not but it sure has been an expensive year.
Road Captain
Joined: Mar 2016
Posts: 600
Likes: 231
From: Dewey, Arizona 86327
I know its painful to listen too while it seems like forever to pump up. You should hear it after a total rebuild...it took so long to pump up i was ready to tear it back down.