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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Drivetrain » Primary Drive: Sprockets, Chain, Tensioner, Adjustment » How loose are the engine sprocket spline fits? « Previous Next »

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Vr1203
Posted on Monday, August 20, 2007 - 08:58 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

My engine nut came off and my sprocket can rock somewhat on the crank splines ,how tight are the spline fits? Are there better nuts or locking systems available ?
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Bad_karma
Posted on Tuesday, August 21, 2007 - 12:12 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Just put mine back together on the 99 S3 with 26,000 miles and the fit was snug, no rocking.
Joe
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Road_thing
Posted on Tuesday, August 21, 2007 - 10:24 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

If it can wiggle at all, it'll fail.

Never mind how I know.

rt
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Vr1203
Posted on Tuesday, August 21, 2007 - 10:32 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Oh shoot! Well, I'm off to buy a 8 bolt sprocket/rotor for $$$, and more stuff, we'll see if the wear is in the sprocket splines and not the shaft.
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Vr1203
Posted on Thursday, August 23, 2007 - 09:25 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What is the proper torque setting for the engine sprocket nut on a 2000 Buell twin? Has it been updated for a 2000 crank assembly like the updated ,increased torque for the XB's??
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Vr1203
Posted on Tuesday, August 28, 2007 - 11:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I've reinstalled the primary parts. The engine sprocket nut went to 200 ft lbs, nobody said otherwise!
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Sparky
Posted on Tuesday, August 28, 2007 - 12:10 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I thought there was a post on the BadWeB reporting an upgraded torque value, so I did a search for "primary sprocket torque alert".

200 ft lbs is not enough for XB's. There is a service alert upping the torque value to 250 +/- 10.
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Vr1203
Posted on Tuesday, August 28, 2007 - 12:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have a 2000 crank in a 96 tuber, it was 160ft lb in the manual, there must be a diff between the newer crankshafts and the older ones.

(Message edited by vr1203 on August 28, 2007)

(Message edited by vr1203 on August 28, 2007)
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