Subject: Re: ujoint question.
Author: John Chicoine
Date: May 11, 2005, 8:49 AM
Post ID: 1718847229
Greg, Tom and others:
Since I've been rebuilding loop u joints I've come across a couple that had
spun in the carrier bearing to the point where the yoke was junk. It really
took the yoke OD down to an unacceptable diameter.
This may have occurred because the carrier bearing siezed, not sure.
As for me and my u joints - we're going loctite!
Ride safe,
John
----- Original Message -----
From: "Greg Bender" <gr-@thisoldtractor.com>
To: <Loopfram-@topica.com>
Sent: Wednesday, May 11, 2005 10:57 AM
Subject: RE: ujoint question.
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Hi Tom,
There are times when I think that the U-Joint to Carrier Bearing fitment
is a non-fatal problem looking for a solution. But, on the even days of
the week, I think its a good idea to take some pre-emptive measures.
I think the real issue is that the fitment of the U-joint to the carrier
bearing is not precise. Sometimes the fit is tight, more often it is a
little loose. Add to that the fact that dissassembled u-joint/carrier
bearings show signs that the u-joint and carrier bearing were spinning
at least somewhat independently.
Solutions have included some form of loctite, knurling, or
center-punching the u-joint (and probably others). In the end, I'm not
sure it's worth the trouble given that a replacement carrier bearing is
easily obtainable and relatively inexpensive. I also don't know that it
does any terrible damage to the U-joint itself.
All that being said, I used blue loctite on the mating surfaces when I
replaced the carrier bearing in my Quota last fall. If I were you, I
think I'd just run it and worry about it later when you need to remove
the swing arm for some other reason.
As for the direction in which to install the U-joint, I think you can
usually tell where the bearing was originally installed. I'm not sure it
matters on many u-joints, but I think perhaps some weren't machined to
accept a carrier bearing on one end. I just don't know.
tom short wrote:
All this talk has me wondering. I just replaced the ujoint in my G5. It was a little tough to knock out of the swing arm it was in, but slid easily into the carrier bearing in the swing arm I am using(original). Soooo, is my carrier bearing worn? Did I put the uj in backwards? Should I pull it apart and put some goopuckey on it?(loctite),and, why shouldn't the uj be a slip fit into the carrier bearing? Thanks... The Arizona Kid LFL 009 Tom Short AZ MGNOC Rep Phoenix, AZ |
Regards,
Greg Bender
1971 Ambassador
2000 Quota
http://www.thisoldtractor.com/gtbender
Florida MGNOC website
http://www.thisoldtractor.com/fl_mgnoc
Minnesota MGNOC website
http://www.thisoldtractor.com/mn_mgnoc
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