Ipb?
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Joined: Feb 2021
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From: Louisiana
Ipb?
I’m getting a loud whining sound when my 2006 Street Bob is in neutral. It doesn’t matter is the clutch lever is in or out. As soon as I put it in gear the noise goes away. I’ve seen other posts that seem to say it’s the inner primary bearing.
It just started tonight after I had adjusted my belt tension. Is it possible that I had to belt too tight and smoked the bearing? I only rode it for around 30 minutes. I adjusted the belt again, (looser). To 3/8” at 10lbs.
Thanks
It just started tonight after I had adjusted my belt tension. Is it possible that I had to belt too tight and smoked the bearing? I only rode it for around 30 minutes. I adjusted the belt again, (looser). To 3/8” at 10lbs.
Thanks
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From: Poolville
I don't think too tight of a belt would take it out that quick. I run my belt at 1/4"@10 lbs without issue.. I would suspect the primary chain being too tight to take out the IPB.. Time to take it apart and check... For the primary I set at 1/2."
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From: GA/FL
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Joined: Feb 2021
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From: Louisiana
no - the cam chain tensioner issue in the early twin cam dynas did not effect the 2006 or newer dynas. The 2006 dynas have an upgraded cam chain tensioner design that removed the spring loaded shoes and used hydraulic tensioners. The Softail and touring bikes didn’t get them until 2007.
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From: South Carolina
2006 Dyna models are known for eating inner primary bearings.
It was caused by a misalignment between the inner primary cover and the transmission. There were a lot of threads about this issue back then.
Do a google search for 2006 inner primary bearing.
It was caused by a misalignment between the inner primary cover and the transmission. There were a lot of threads about this issue back then.
Do a google search for 2006 inner primary bearing.
Last edited by Dan89FLSTC; Apr 15, 2021 at 07:19 AM.
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Joined: May 2008
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From: South Carolina
Once you put the transmission into gear the noise will stop (because the mainshaft has stopped spinning).
The real cure to the premature ipb wear on the `06 Dynas was a new transmission case and inner primary cover.
