Why is my drive belt rubbing on the belt guard?
#1
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At first I thought it was because it has lowered shocks since I can see where the bottom edge of the fender was hitting the guard. I clearanced the bottom of the fender and put some tape over the scar to see if it would hit again. It did riding two up so I clearanced it some more, marked the belt, and took it out by myself. No marks on the top of the belt guard this time but you can see by the fresh crayon mark that it's still rubbing the guard. My suspicion is the belt is flapping enough to do this but why would it do that? Wrong belt tension? As heavy as the guard is and as far away from the belt as it is it seems like it would really show some signs of being bent if it was that far out of whack but it doesn't. It was like this when I got it and has been that way long enough for the scar on top of the guard to have a little rust where it went through the chrome. Thanks in advance for any ideas on this.
![](https://www.hdforums.com/forum/members/125492-chuckw2-albums-16963-garage-none-yet-picture87587-drive-belt-rubbing-1-custom.jpg)
![](https://www.hdforums.com/forum/members/125492-chuckw2-albums-16963-garage-none-yet-picture87587-drive-belt-rubbing-1-custom.jpg)
![](https://www.hdforums.com/forum/members/125492-chuckw2-albums-16963-garage-none-yet-picture87588-drive-belt-rubbing-custom.jpg)
Last edited by chuckw2; 07-05-2010 at 04:00 PM.
#3
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Good job you had a belt guard on when the fender hit it..otherwise you would have had bigger problems..so +1 on a belt guard with lowered shocks(just in case). Find better lowered shocks or set them harder.
That the belt still rubs the guard from the inside is strange..is it an after market BG or original,belt OE spec ? ? You sure its not bent after being hit by the fender ? I'd check the tension,guard etc and try again..
That the belt still rubs the guard from the inside is strange..is it an after market BG or original,belt OE spec ? ? You sure its not bent after being hit by the fender ? I'd check the tension,guard etc and try again..
#4
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Good job you had a belt guard on when the fender hit it..otherwise you would have had bigger problems..so +1 on a belt guard with lowered shocks(just in case). Find better lowered shocks or set them harder.
That the belt still rubs the guard from the inside is strange..is it an after market BG or original,belt OE spec ? ? You sure its not bent after being hit by the fender ? I'd check the tension,guard etc and try again..
That the belt still rubs the guard from the inside is strange..is it an after market BG or original,belt OE spec ? ? You sure its not bent after being hit by the fender ? I'd check the tension,guard etc and try again..
Last edited by chuckw2; 07-05-2010 at 08:50 PM.
#6
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The shocks shouldn't affect clearance between belt and guard, but if the rear pulley is larger than stock, or the guard is not stock, either (or both) could cause a lack of clearance.
#7
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#8
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Or the fender landed on the guard and smashed it down due to lowering, lots of passenger weight, potholes or a combo of all three.
#9
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No, if the belt has rubbed the guard, but they are 3/4" apart then dark forces are at work! That guard bracket does not look as if it has deformed by 3/4" and sprung back perfectly straight, either. Something of a mystery.
#10
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the guard has been hit by the fender but but like you say it really seems like if it had bent that far it wouldn't come back straight. talked to a long time HD mechanic today. he says the shorter shocks are putting the belt higher up in the swingarm arc and causing it to run loose enough in that position to flap up into the guard. he suggested either going to a smaller rear pulley to give the belt more room or back to stock length shocks.