Clutch Hub Problem
Thread Starter
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Road Warrior
Joined: Dec 2007
Posts: 1,412
Likes: 2
From: Ma
Clutch Hub Problem
Have an 08 Fatboy with 45000 miles.
Doing a bunch of work on the bike and had the primary case off. Found a few pieces of metal. Looks like tips of gear teeth.
Removed clutch pack.
The clutch hubs mainshaft splines are chipping off. I mean in a big way. Really, I'm lucky I had the cover off and found this problem instead of 500 miles away from home.
Also, on the bottom of the outer and inner primary there is a wear spot caused by the primary chain in the casting. Look like at one time or more the primary chain tensioner and/or compensator didnt do its job upon acceleration and dragged there.
Also in the history/background.... My bike has had the periodical starting screech/clunk/grind problem that seems to be quite common with 07-08 models, and one of the reasons I'm in the primary is to change the compensator to SE compensator.
Anyone have anything to add about this? I've heard these problems are all related but the solutions given are varied. Some say the root is the starter. Some say its the starter clutch. Some say it's the compensator.
Hello?
Doing a bunch of work on the bike and had the primary case off. Found a few pieces of metal. Looks like tips of gear teeth.
Removed clutch pack.
The clutch hubs mainshaft splines are chipping off. I mean in a big way. Really, I'm lucky I had the cover off and found this problem instead of 500 miles away from home.
Also, on the bottom of the outer and inner primary there is a wear spot caused by the primary chain in the casting. Look like at one time or more the primary chain tensioner and/or compensator didnt do its job upon acceleration and dragged there.
Also in the history/background.... My bike has had the periodical starting screech/clunk/grind problem that seems to be quite common with 07-08 models, and one of the reasons I'm in the primary is to change the compensator to SE compensator.
Anyone have anything to add about this? I've heard these problems are all related but the solutions given are varied. Some say the root is the starter. Some say its the starter clutch. Some say it's the compensator.
Hello?
Club Member
Joined: Apr 2007
Posts: 69,901
Likes: 18,589
From: South Florida
Have an 08 Fatboy with 45000 miles.
Doing a bunch of work on the bike and had the primary case off. Found a few pieces of metal. Looks like tips of gear teeth.
Removed clutch pack.
The clutch hubs mainshaft splines are chipping off. I mean in a big way. Really, I'm lucky I had the cover off and found this problem instead of 500 miles away from home.
Also, on the bottom of the outer and inner primary there is a wear spot caused by the primary chain in the casting. Look like at one time or more the primary chain tensioner and/or compensator didnt do its job upon acceleration and dragged there.
Also in the history/background.... My bike has had the periodical starting screech/clunk/grind problem that seems to be quite common with 07-08 models, and one of the reasons I'm in the primary is to change the compensator to SE compensator.
Anyone have anything to add about this? I've heard these problems are all related but the solutions given are varied. Some say the root is the starter. Some say its the starter clutch. Some say it's the compensator.
Hello?
Doing a bunch of work on the bike and had the primary case off. Found a few pieces of metal. Looks like tips of gear teeth.
Removed clutch pack.
The clutch hubs mainshaft splines are chipping off. I mean in a big way. Really, I'm lucky I had the cover off and found this problem instead of 500 miles away from home.
Also, on the bottom of the outer and inner primary there is a wear spot caused by the primary chain in the casting. Look like at one time or more the primary chain tensioner and/or compensator didnt do its job upon acceleration and dragged there.
Also in the history/background.... My bike has had the periodical starting screech/clunk/grind problem that seems to be quite common with 07-08 models, and one of the reasons I'm in the primary is to change the compensator to SE compensator.
Anyone have anything to add about this? I've heard these problems are all related but the solutions given are varied. Some say the root is the starter. Some say its the starter clutch. Some say it's the compensator.
Hello?
$900 later I had a new Clutch Hub. <-- Cause was probably my treating the bike as a crotch rocket and downshifting ALL the time. Nothing else found to ahve casued the problem.
Wish I could be of btr help to you.
BuzzCap7
Thread Starter
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Road Warrior
Joined: Dec 2007
Posts: 1,412
Likes: 2
From: Ma
Can't hlp u much there my friend. On my '09 Ultra Classic at 80K miles I lost all my gears in a police escorted rite on a very bz hwy. Got towed and found out my clutch hub was so worn, the spindle going into it had nothing to grab.
$900 later I had a new Clutch Hub. <-- Cause was probably my treating the bike as a crotch rocket and downshifting ALL the time. Nothing else found to ahve casued the problem.
Wish I could be of btr help to you.
BuzzCap7
$900 later I had a new Clutch Hub. <-- Cause was probably my treating the bike as a crotch rocket and downshifting ALL the time. Nothing else found to ahve casued the problem.
Wish I could be of btr help to you.
BuzzCap7
Seasoned HDF Member
Joined: Mar 2007
Posts: 66,948
Likes: 4,573
From: TOAK western branch
Yep. Been there done that. Had a few bad starter clutches and finally my ring gear failed and the hub splines were cracked. I was lucky enough to find a used clutch out of a dyna with a good ring gear, hub and bearing. Didnt want to pay $500 for a complete clutch from HD as my only option. Going to an aftermarket starter clutch fixed it for me. 70k trouble free miles from the starter.
Club Member
Joined: Feb 2008
Posts: 18,575
Likes: 4
From: Norfolk, VA
Check the trans mainshaft splines for any wear..You may have a poorly manufactured inner clutch hub which is a breeze to replace..Check the starter gear bushing in the outer primary cover and the starter gear bushing in the inner primary...If either of those are worn it will cause the starter gear to not track properly and consequently slip when it engages the ring gear on the outer clutch hub. You've gone in this far and you should have no probelm fixing it!!!
Seasoned HDF Member
Joined: Mar 2007
Posts: 66,948
Likes: 4,573
From: TOAK western branch
Check the trans mainshaft splines for any wear..You may have a poorly manufactured inner clutch hub which is a breeze to replace..Check the starter gear bushing in the outer primary cover and the starter gear bushing in the inner primary...If either of those are worn it will cause the starter gear to not track properly and consequently slip when it engages the ring gear on the outer clutch hub. You've gone in this far and you should have no probelm fixing it!!!
Club Member
Joined: Feb 2008
Posts: 18,575
Likes: 4
From: Norfolk, VA
Dont get me wrong but an 09 wouldnt have bushings in the primary as the starter is one piece not like the pre 07 style that had a jack shaft. Am I missing something? http://partsfinder.onlinemicrofiche....N-CASE-HOUSING
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Seasoned HDF Member
Joined: Mar 2007
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From: TOAK western branch
Last edited by soft 02; Sep 7, 2012 at 11:24 PM.
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Club Member
Joined: Feb 2008
Posts: 18,575
Likes: 4
From: Norfolk, VA
I thought so. No dis respect. The new style eliminates starter to flywheel issues. Not only is the starter automotive style it is doweled and the nose cone has an O-ring. Pretty good set up. I knew what you were getting at though. +1 on anti seize. The hub is soft cast iron and is the sacrificial piece as opposed to the hardened steel shaft. Starter break down: http://partsfinder.onlinemicrofiche....ARTER-ASSEMBLY
Seasoned HDF Member
Joined: Mar 2007
Posts: 66,948
Likes: 4,573
From: TOAK western branch
Yep. And the HD unit sucks. I went with a MEH lifetime warranty starter clutch after my third HD one. Been good so far. A shitty weak compensator doesnt do the starter any favors either.