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Apr 24th, 2007, 01:33 PM
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#1 | | 200+ posts and climbing
Join Date: Jan 2006 Location: Nomad, currently the Blue Ridge Mountains
Posts: 391 Model: 2006 FXDI SuperGlide Interests: Camping, fishing, admirer of beautiful women, fast motorcycles, and smooth whiskey Occupation: Writer illustrator
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Howdy,
Anyone have any experience with the rear bearing and race in the inner primary going south? My SuperGlide is having them replaced now, (under warranty) I suddenly heard a noise that wasn't supposed to be there and pinned it down to the primary and took it to the stealership. They confirmed it and that was the problem so they are fixing it.
Has anyone else ever had that problem? I have run aluminum primaries since back in the 60's and never had one go bad. Usually IF you replaced it it was just because you had everything else new and figured why not? My 86 Evo had 123K on it when I sold it and still had the same bearing. And the 66 shovel I got a few years ago had the one that came in it in 66. Is this a fluke or something new they "improved"?
Ride Free...... | 
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Apr 24th, 2007, 01:51 PM
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#2 | | Has posted 500+
Join Date: Jun 2004
Posts: 1,815
| GB
It's prone to happen on higher HP bikes more than anything else the race will walk, if it goes in it hits the trans if it goes out it pops the seal on the primary.
I replaced mine with a one piece bearing support that comes from zippers, it's designed to fit tight to the mainshaft and eliminates the race on the shaft.
High mileage might do it too, don't know.
It's worth doing the zippers mainshaft conversion if you have a lot of power. | |
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May 8th, 2007, 07:14 PM
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#3 | | 200+ posts and climbing
Join Date: Jan 2006 Location: Nomad, currently the Blue Ridge Mountains
Posts: 391 Model: 2006 FXDI SuperGlide Interests: Camping, fishing, admirer of beautiful women, fast motorcycles, and smooth whiskey Occupation: Writer illustrator
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Just a heads up. Seems tha they originally suggested changing the bearing every 15K then decided that wasnt neeeded..unfortunatley some of the dynas had a 15k bearing. Now they don't recommend the change...and if needed will warranty it. They did and I have put 1200 miles on it and it seems fine.
Thanks for the info HRK, I will check into that when I do the big bore kit.
Ride Free...... | |
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May 15th, 2007, 04:22 PM
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#4 | | 200+ posts and climbing
Join Date: Feb 2007 Location: Chicago
Posts: 386 Model: Harley-Davidson Dyna Superglide Interests: Motorcycling, Duhh...Shooting, camping, going to country music concerts Occupation: Firefighter/Paramedic
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Originally Posted by GreyBear  Just a heads up. Seems tha they originally suggested changing the bearing every 15K then decided that wasnt neeeded..unfortunatley some of the dynas had a 15k bearing. Now they don't recommend the change...and if needed will warranty it. They did and I have put 1200 miles on it and it seems fine.
Thanks for the info HRK, I will check into that when I do the big bore kit.
Ride Free...... | do you know what year Dynas ?? I have a 97 superglide | |
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May 16th, 2007, 11:20 AM
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#5 | | Has posted 500+
Join Date: Jun 2004
Posts: 1,815
| Here is a link to the Inner Primary Bearing Upgrade
JMO if you are planning a big bore down the road and you have the inner primary off now, go ahead and do the upgrade now, won't hurt, you have to do a new bearing anyway, and, you won't have to pull the primary apart again when you bor the motor. | |
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