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Home » Public Forums » GMCnet » Re: [GMCnet] Blown final drive in WI need help
Re: [GMCnet] Blown final drive in WI need help [message #90375] Mon, 28 June 2010 23:05 Go to next message
John Biwersi is currently offline  John Biwersi   United States
Messages: 78
Registered: July 2006
Location: Maplewood,
Karma: 1
Member
I traded emails with John Bell, the fine gentleman who was stranded
in Wisconsin Dells with a blown final drive. He reports that he is
still mobile and plans to be home in Montreal by Friday. I did a
postmortem on his 3.07 today and found 3 teeth in a row broken from
the pinion. Also when I pulled the pinion out of the housing the front
pinion bearing rollers fell into the housing. The bearing cage for
some reason had failed. I think the saga started with this cage
failure which allowed the rollers to "bunch up" which caused the
pinion teeth to get out of alignment with the ring gear teeth. This
caused the harsh wear on the very outside edge of the ring gear and
also caused "point loading" on the pinion teeth. The point loading
caused the teeth breakage.
I certainly agree with Larry's comments about how hospitable and
appreciative this couple were. Speaking of Larry, he is no stranger to
tools and GMC motorhomes. He is also no stranger to helping members
when they have problems. It was great to have his help when changing
this final drive in the parking lot of a motel.

John Biwersi
3.21 final drive dude
Maplewood MN
78 Royal center kitchen
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Re: [GMCnet] Blown final drive in WI need help [message #90377 is a reply to message #90375] Mon, 28 June 2010 23:19 Go to previous message
jimk is currently offline  jimk   United States
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
Senior Member
Larry can thank Lucy for teaching him all those back stage moves.
He did not learn all those moves under the GMC.


On Mon, Jun 28, 2010 at 9:05 PM, John Biwersi <jbiwersi@mac.com> wrote:

> I traded emails with John Bell, the fine gentleman who was stranded
> in Wisconsin Dells with a blown final drive. He reports that he is
> still mobile and plans to be home in Montreal by Friday. I did a
> postmortem on his 3.07 today and found 3 teeth in a row broken from
> the pinion. Also when I pulled the pinion out of the housing the front
> pinion bearing rollers fell into the housing. The bearing cage for
> some reason had failed. I think the saga started with this cage
> failure which allowed the rollers to "bunch up" which caused the
> pinion teeth to get out of alignment with the ring gear teeth. This
> caused the harsh wear on the very outside edge of the ring gear and
> also caused "point loading" on the pinion teeth. The point loading
> caused the teeth breakage.
> I certainly agree with Larry's comments about how hospitable and
> appreciative this couple were. Speaking of Larry, he is no stranger to
> tools and GMC motorhomes. He is also no stranger to helping members
> when they have problems. It was great to have his help when changing
> this final drive in the parking lot of a motel.
>
> John Biwersi
> 3.21 final drive dude
> Maplewood MN
> 78 Royal center kitchen
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>



--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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