Noisy Primary when HOT
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Intermediate
Joined: May 2018
Posts: 44
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From: South Carolina
Noisy Primary when HOT
I've really been enjoying my new 82 FLH. On 2 occasions, after 100 mile rides when temperature is really hot outside, my primary starts getting noisy. It sounds like chain slapping but I've checked the tension and it measures ok. Runs really good though. I only hear it when I let off the throttle. After bike has set over night and cooled down, I don't hear the noise again. Just after a lot of miles and outside temp really hot. (running 60w Valvoline oil recently changed)
As always, any guidance is appreciated.
As always, any guidance is appreciated.
Seasoned HDF Member
Joined: Nov 2006
Posts: 12,878
Likes: 5,449
From: la la land jerzey
the chain is worn and stretching to much after it runs that far - or the primary bearing is going away - replace them both
when you put the chain on end like lt runs in the primary folded over its self - hold it in your hands at about 6 inches and slide it back and forth the lower one - to see how much pin wear it has you will surprised how much it moves - the new one wont do that at all zero movement if you buy a USA chain - china crap will be worse then the old one
when you put the chain on end like lt runs in the primary folded over its self - hold it in your hands at about 6 inches and slide it back and forth the lower one - to see how much pin wear it has you will surprised how much it moves - the new one wont do that at all zero movement if you buy a USA chain - china crap will be worse then the old one
Last edited by johnjzjz; Jul 5, 2018 at 07:12 AM.
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