Hi James
Welcome to the list.
The bearings could have been too loose, but also the race may not have been
seated properly, giving an uneven contact area. I usually tighten my wheel
bearings to 10Lb Ft then fit the split pin, only slackening enough to get
the pin in not to cause the 0.002 inch freeplay required. I have found this
not to be detrimental to the bearings so far and is also beneficial to the
stub axle as the inner bearing does not seem to be hammering the bottom of
the stub axle.
I used to believe the freeplay was to allow for expansion, but then it is
all steel an will have a similar expansion rate once heat soaked on a long
run, so I concluded (right wrong) that it was designed to increase spares
turnover!
The second part of your question was gone over a while back, and the answer
is yes you can over fill the hub, about half full should do the job.
As for the grease on the disc / rotor, you have a felt seal to retain the
grease, did you replace this when you did the bearings?
Graham.
----- Original Message -----
From: "James J. Buck" <buckaroo36@juno.com>
To: <triumphs@autox.team.net>
Sent: Tuesday, August 20, 2002 9:32 PM
Subject: TR6 Wheel Bearings
> This is my first posting to the list. I've enjoyed reading some of the
> comments and have save quite a few of the emails for future reference.
> Now it's my turn for a question.
> Last week I replaced the front wheel bearings on my '74 TR6 and
> followed the instructions in the Haynes manual. I replaced the hub,
> tightened to 10 lbs torque, and then back off the nut a bit to insert the
> cotter pin, all according to their instructions.
> Felt some low level vibration while driving yesterday and have since
> removed the wheel and examined the driver's side bearings once again.
> Turns out there were fine metal shavings in the grease cap. Upon close
> examination of the outer bearing, there was significant wear spots on the
> inner side of the bearing case. I have since ordered another outside
> bearing for the car.
> My questions for the group are: Could it be that I did not tighten
> the hub nut sufficiently? Is 10 lbs of torque too light? I haven't
> replaced front wheel bearings before, but it seems to me that the damage
> to the bearing was caused by too much play resulting from insufficient
> torque. A possible clue: I had wheel bearing grease on the inner side of
> the brake rotor--suggesting there was not a tight fit to the stub axle at
> the rear of the hub and allowing grease to seep out.
> A related question: Should I fill the entire cavity in the wheel hub
> with grease? Is it possible to over-grease the hub?
> Would appreciate your comments.
>
> Jim Buck
> 74 1/2 TR6 CF29044UO, El Sobrante, CA
---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.381 / Virus Database: 214 - Release Date: 02/08/02
/// triumphs@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
/// Archives at http://www.team.net/archive
|