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Re: Front Wheel Bearing Squeal

To: John & Patricia Donnelly <pdonnel1@san.rr.com>
Subject: Re: Front Wheel Bearing Squeal
Date: Fri, 4 Jun 2004 17:24:06 -0400 6.5.1|January 21, 2004) at 06/04/2004 05:24:08 PM, Serialize complete at 06/04/2004 05:24:08 PM FILETIME=[45A281C0:01C44A7A]
Cc: owner-triumphs@autox.team.net, "Triumphs List (E-mail)" <triumphs@autox.team.net>
10$ says the wheel bearings are just slightly loose, what you hear are the 
brake pads squealing- just touching the disk lightly on turns.   I usually 
finger-tighten the castellated nut until the endplay is gone,  and pin 'em 
right there.  Never had a problem, although I don't race or beat the car 
too much. ( well, most of the time)
Some brake pads have an anti-squeal plate between the pad and the caliper 
piston,  I've also seen some kind of magic sauce that is applied to the 
pad-piston junction, never used the stuff....    I actually like a bit of 
squealing, as it gets the jokers out of the way a little faster.   Don't 
worry about your wheel bearing races spinning in the hubs,  that would 
make a noise you won't soon forget.......  Just make sure you have 
sufficient brake pad material left, the brake pedal is high and firm, and 
get back to driving.  No worries.
Cheers
        Bob Westerdale
        59 3A  TS36967
 




John & Patricia Donnelly <pdonnel1@san.rr.com>
Sent by: owner-triumphs@autox.team.net
06/04/2004 02:52 PM
Please respond to John & Patricia Donnelly

 
        To:     "Triumphs List (E-mail)" <triumphs@autox.team.net>
        cc: 
        Subject:        Front Wheel Bearing Squeal


My TR wheel bearings have developed a nasty habit of making squealing 
noises at low speeds. Light pressure to the brakes eliminates the squeal, 
as does turning corners. Once over 35 MPH the squeal goes away.

As I recall from the manual you're supposed to tighten the castellated nut 

to about 10 LB then back off 1 or two flats. When I do this there seems to 

be more endplay than I feel is correct. Does anybody have a endplay spec?

Also, if the bearing starts to squeal I assume that it's the race bearing 
surface that's spinning on the stub axle, thus the squeal. I usually apply 

a coating of bearing grease to this surface before installing the hub and 
bearings. Should this be clean?

And, now that they've started squealing do they need replaced?

Thanks for your help!
John
'67 TR4A





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