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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » XB9 Engine Knocking « Previous Next »

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Jessemathison
Posted on Monday, March 07, 2016 - 06:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Hey guys,

I'm trying to troubleshoot a knocking that has developed in the last 10 miles.

https://www.youtube.com/watch?v=gZdFNFgSLJE

It's a 2004 XB9 with 30k miles. I've checked/eliminated primary chain tension. I did just flush the primary oil, as moisture got in and turned the fluids white (I've since flushed it twice). I honestly think it's coincidental that these two problems happened at about the same time, but there is the possibility that friction could have shaved some metal, leading to the knocking.

I tend to think it would be push rods or bearings, though my father disagreed about the push rods, so I am trying to narrow it down, if at all possible. The knocking is worse when you rev the engine.

Thanks for any help/ideas you can throw at me.
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Andersonhdj
Posted on Wednesday, March 09, 2016 - 02:27 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Big end. XB9 cranks do fail , just not as common as 12's.
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