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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Lubrication - Engine Oil, Transmission Oil, Bearing Grease... » Archive through August 12, 2007 » Chain tensioner leaking « Previous Next »

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Jt03rubicon
Posted on Thursday, November 16, 2006 - 10:23 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Noticed small pool of tranny fluid yesterday and discovered that a small amount of fluid was coming from the chain tensioner bolt. So, I snugged the nut up against the primary and haven't noticed any more leaking. Not sure if this is the right thing to do? When I purchased the bike, that nut sat half-way down the bolt with with equal threading between the primary and the end of the bolt. Any suggestions, apprehensive to get back on the bike until this is resolved. Thanks.

JT
2004 XB12S with 3,500 miles
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Reepicheep
Posted on Friday, November 17, 2006 - 08:40 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You need to adjust the primary chain tension as per your manual (or just slightly looser). It's not a difficult job, 10 minutes when you know what you are doing, under 30 the first time.

I would not ride it unless you adjusted that tension, it is likely way out of spec at this point, which could lead you to either break your tensioner shoe, cut internal groves in your primary cover (been there, done that) or trash some important bearing.

Basically, you just pop off the inspection cover (two torx bolts) and look at the slack in the primary chain. It should have (check your manual to be sure, I am going from memory here) about 5/8 inch play. A little on the loose side is safer then tight.

You also want to check it in a few different positions in case your chain stretched, I just put a shop rag over the cover and blip the starter to move that chain (don't let the bike start). The first time I do on a new to me bike I would check about 5 positions. Once I know my chain is not badly stretched, I only check 2 or 3 positions in the future, and keep it on the loose side.

Its an easy part of your normal maintenance routine, let us know if you have any questions.
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Jt03rubicon
Posted on Sunday, November 19, 2006 - 10:49 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Ok, just to make sure we are on the same sheet of music. I'm talking the bolt that potrudes from the primary cover near the kickstand bracket. The leak is coming from this area where the bolt exits the underside of the primary cover. Again, thanks for the help.

Jeremy
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Justin_case
Posted on Sunday, November 19, 2006 - 06:20 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Jt03, That adjuster is turned with an allen wrench and is held steady with the allen wrench while tightening the large locknut.
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