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Buell Forum » Old School Buell » Archive through January 16, 2012 » Broken belt « Previous Next »

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Jim2
Posted on Friday, December 16, 2011 - 02:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When it rains it pours. My belt snapped last night.

It was NOT from having it too tight. Perhaps it had been too tight with a previous owner.

It was less than 24 hours from getting back on the road from my snapped throttle cable.
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Natexlh1000
Posted on Friday, December 16, 2011 - 03:49 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well that blows.
Sorry to hear that.
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Jim2
Posted on Friday, December 16, 2011 - 07:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I just got the bike back home safe. Nothing missing and gas still in the tank.

Safety lesson to think about:
Just before by belt broke I was in the left turn lane ready to cross two lanes of oncoming traffic. The speed limit on that section of highway is 55mph but the cars could have been going any speed. I thought to self that I could turn in front of those two oncoming cars but saw nobody behind so I just stopped and waited. My belt broke the second time I applied throttle right after crossing the two lanes. I'd hate to have gassed it right in front of the two cars and had the belt brake as I pulled in front.
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Buellistic
Posted on Saturday, December 17, 2011 - 10:30 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

JIM2:

In KENTUCKY and computer in not working to good in this "COLD WEATHER" as the electrons move slow here ...

Try to get the "INFO" you requested to you "ASAP" !!!
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Jim2
Posted on Wednesday, January 04, 2012 - 02:35 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Back on the road


on stands

on the stands, tire and guards removed



starr method tool

compressed iso's using the Unauthorized "Scott Free Method" for changing Buell rear isolators. The homemade tool is shown here.
http://danielcstarr-pages.blogspot.com/2008/09/unauthorized-scott-free-technique-for.html




insert tool

Insert tool



take tool out

Take tool out



old vs new iso

Old vs. New isolators



new iso not seated

New iso not seated. Had to take tool out and insert again. I should have put something for protection on the end of the tool but didn't. As a result I scratched the inside of the frame.



new belt in

New 04' plus XB belt in place.



adjust belt

Unhooked the shock and jacked up the swingarm to line up the axle, swingarm pivot point and the center of front pulley. The is the no guess way to adjust the belt tension. Thanks Buellistic for teaching me this method.

With the new iso's, the front pulley guard has to be trimmed in order to clear the big tab at the bottom of the iso. When trimming the belt guard you have to remove the material that also has a small stand-off riveted into place. This stand-off help to provide clearance between the bottom trailing end of the guard so it doesn't rub on the belt. The shape of the new iso's tab also tend to wedge the guard tight against the engine case providing the exact opposite function of the stand-off that was removed in the trimming process. I barely have any clearance and will probably remove the guard again and trim a little more and/or see if I can find a new place to mount the stand off. I should have taken a picture of this but didn't.

I did not see any obvious tears in the old isolators but I noticed the bike sits a tad higher. I remember when it started to feel lower one day but the iso's never appeared to be bad. I thought it was the shock but the shock is still performing flawlessly and I have never seen a leak from it.

Thank you Badweb'ers for all of the post and helpful documentation that allowed me to do this myself. Al at American Sport Bike shipped out the parts I needed during the holidays.
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Foximus
Posted on Wednesday, January 04, 2012 - 12:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Yea.... I definitely need to replace the isolators on mine. I'm still running the old ones, and I have no doubt that they would be destroyed already the way I ride, if it were not for the fact that i run the aluminum stiffeners inside them.
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Dave_02_1200
Posted on Wednesday, January 04, 2012 - 03:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jim2,

That's a great picture of your belt adjustment with everything lined up (axle, swingarm pivot, front sprocket).

That photo should be in the Factory Service Manual.

I use that same method on my chain drive bikes too.
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Cyclonecharlie
Posted on Thursday, January 05, 2012 - 08:07 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When you line up the axle and the front sprocket, what slack do you set the belt at?
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Jim2
Posted on Thursday, January 05, 2012 - 10:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

When you line up the axle and the front sprocket, what slack do you set the belt at?

Zero slack when lined up. This is the maximum distance the rear axle will ever be from the front pulley.
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