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Author Topic: Engine/Cam Failure  (Read 1955 times)

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Bug catcher

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Engine/Cam Failure
« on: August 13, 2021, 05:51:02 AM »
Does anyone have any insight into what could be wrong with my bike (2004 CVO EG)? I'll be tearing off the cam cover this weekend as I suspect something is broken but I'm looking for wisdom from anyone who has seen this before. It quit on me suddenly, it was running great, good power etc. and I came around a curve and tried to give it gas to go up the incline and it started sputtering, popping, no guts almost like a car engine when the distributor is way off. As soon as I let off the gas it died. It still starts but runs extremely rough. We pulled the crank sensor and I've got some shavings on it. I'm of the opinion that it's a broken cam chain or may I've sheared a keyway on the cam chain gear etc.??? Looking for ideas.
Thanks!
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*58Vette

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Re: Engine/Cam Failure
« Reply #1 on: August 13, 2021, 08:18:02 AM »
Your on track, lifter/cam failure...
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HD Street Performance

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Re: Engine/Cam Failure
« Reply #2 on: August 13, 2021, 09:49:41 AM »
More than likely you have cam tensioners that are gone and past the plastic into the metal. If it were mine and I found that I advise a full motor and cam plate flush, oil pan off, before replacing parts. Upgrade to the SE hybrid kit gets you better lower pressure tensioners and an improved oil pump. At the same time replace the cam bearings and lifters.
Inspect first then decide.
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Bug catcher

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Re: Engine/Cam Failure
« Reply #3 on: August 13, 2021, 01:34:21 PM »
Thanks both of you guys for the insight.
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Bug catcher

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Re: Engine/Cam Failure
« Reply #4 on: September 02, 2021, 06:00:12 AM »
Got it torn down and ended up being an inner cam bearing that was gone. It's far enough that it has some case damage which means complete rebuild. Kind of stinks but we'll rebuild it to better than new. May drop in a Baker 6 speed while we're there.  :)
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OBB

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Re: Engine/Cam Failure
« Reply #5 on: September 02, 2021, 06:25:31 AM »
Quote from: Bug catcher on September 02, 2021, 06:00:12 AM
Got it torn down and ended up being an inner cam bearing that was gone. It's far enough that it has some case damage which means complete rebuild. Kind of stinks but we'll rebuild it to better than new. May drop in a Baker 6 speed while we're there.  :)
Now that's positive thinking. :beerchug:
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HD Street Performance

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Re: Engine/Cam Failure
« Reply #6 on: September 03, 2021, 10:21:00 AM »
To save the case bore the cam bearing holes up to the B168 bearing size and use all late model cam plate, cams and tensioners
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Cvostu

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Re: Engine/Cam Failure
« Reply #7 on: September 03, 2021, 02:21:11 PM »
I put the baker 6 speed in on my 04 seeg.  Great addition. Do it. Stuart  :2vrolijk_21:
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prodrag1320

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Re: Engine/Cam Failure
« Reply #8 on: October 02, 2021, 07:59:34 AM »
i repair a lot of cases with blown out bearings,call me if you need it fixed right
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