I am working on a buddies '07 Custom that he brought in with what he thought was a rod bearing going bad, took the bike down to the cases and the bearings were great - no slop, no play. it sounded like the sportster had rocks in the engine. Pistons and jugs were fine, almost no wear, no smoke, rings set right, wrist pins locked, no metal in the oil, no NOTHING! Put the sportster back together, changed the oil, changed the primary oil and it still has this noise - almost a clumping and I cannot find it.
Anyone else have this issue and what did they do? I really need help with this damn bike!
ShovelheadGreg

 

sounds like a maxipad in the oil bag....lol just kidding.

Hope you find it

 

Nobody has any ideas??? Cummon guys/girls, someone must have heard the thumping sound but couldn't find it at first then found it or someone gave them an idea...

 

Since nobody had any idea, I removed the primary again and now it all points to the clutch hub bearing! DOES ANYONE KNOW OF A RECALL ON THIS PART FROM THE WONDERFUL FOLKS AT HARLEY?????

 

Not sure about the clutch hub bearing. But I know there have been many clutch issues on the rubber mount years. Usually a swap to the SE clutch fixes it.

 

Thanks for the update, anyone know where I can find service bulletins on this issue?

ShovelheadGreg