Physics question
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Road Master
Joined: Mar 2006
Posts: 775
Likes: 2
From: OC California
Physics question
What would cause the final drive belt to get tighter? Chains always get lose after a while. I can understand why. My belt is way tight and I can't figure that out. Ain't had the wheel off, the axle nut is tight and so is the sproket. It was fine about 1500 miles ago (last time I checked it). What happened? Oh, lowered 92' Dyna.
Seasoned HDF Member
Joined: Aug 2007
Posts: 8,199
Likes: 3,087
From: NW AR
My opinion: It didn't shrink. Something shifted. Have you checked it at different spots on the belt? Also, are the springs sagging from the last time you adjusted it? Or not sagging as much? Loaded/not loaded as much? Just adjust it per the book for today and keep an eye on it.
Too tight is generally considered A Bad Thing.
Too tight is generally considered A Bad Thing.
Cruiser
Joined: Aug 2009
Posts: 161
Likes: 0
From: central CT
Comming from dirtbikes i would suspect swing arm bushings if the shocks are ruled out. I dont know if that applys here though since i know little about yoru specific bike. With weight on a worn out bushing the swing arm will measure longer.
Club Member
Joined: Jun 2007
Posts: 45,429
Likes: 2,898
From: Bedford UK
The swingarm is mounted on cleve blocks, which could indeed be failing, as they are a sort of rubber compound. In the same area, the swingarm is mounted off the rear of the transmission and that is supported in the frame by rubber mounts, which might also be old and worn. So there are two candidates for things to go wrong.
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Road Master
Joined: Mar 2006
Posts: 775
Likes: 2
From: OC California
Too tight is generally considered A Bad Thing.
Yep, this is why I am asking. I did not consider the swing arm bushings. Shocks are good, no weight change. I got about 50k on this machine so I guess I will be looking at the bushings (after I do what Hess suggests). If the sucker tightens back up I am checking them. Thanks all!
Yep, this is why I am asking. I did not consider the swing arm bushings. Shocks are good, no weight change. I got about 50k on this machine so I guess I will be looking at the bushings (after I do what Hess suggests). If the sucker tightens back up I am checking them. Thanks all!
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Stellar HDF Member
Joined: Feb 2009
Posts: 2,936
Likes: 20
From: Driftless Area
I don't know how many miles you have on the bike, possibly the belt is worn and climbing on the pulleys? Or vice versa. Just a thought.
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