[TR] Is this symptom I'm getting indicative of a bad front wheel bearing?

[Sujit Roy]

The rotor has been checked for run out. Only thing left is the bearing and
wheel. The bearing is easy to change, but so far the replies don't answer
the original question.
Sujit


On Tue, Feb 28, 2023 at 7:15 AM Alex & Janet Thomson <
aljlthomson at charter.net> wrote:

> I didn’t know that MGs used a spacer sleeve and shims for adjustment. How
> fun would that be when doing wheel bearing service on all of my farm
> equipment. Let’s see – 8 tractors, 7 four-wheel hay wagons, 3 balers, four
> hay rakes, and the list goes on…
>
>
>
> Alex Thomson
>
> ’73 TR6
>
>
>
> *From:* Don Hiscock [mailto:don.hiscock at gmail.com]
> *Sent:* Tuesday, February 28, 2023 8:40 AM
> *To:* DAVID MASSEY
> *Cc:* aljlthomson at charter.net; triumphs at autox.team.net
> *Subject:* Re: [TR] Is this symptom I'm getting indicative of a bad front
> wheel bearing?
>
>
>
> Yeah, I know...
>
>
>
> On Tue, Feb 28, 2023 at 7:35 AM DAVID MASSEY <dave1massey at cs.com> wrote:
>
> Still, 101???  Not 100?  Nobody lists a torque setting to +/- 1%
> Especially back in the day.  With the old torsion-beam torque wrenches with
> a linear scale you're lucky to get +/- 5 lb-ft.
>
>
>
> Dave
>
>
>
>
>
>
>
>
>
> -----Original Message-----
> From: Don Hiscock <don.hiscock at gmail.com>
> To: Alex & Janet Thomson <aljlthomson at charter.net>
> Cc: Triumphs <triumphs at autox.team.net>
> Sent: Mon, Feb 27, 2023 7:28 pm
> Subject: Re: [TR] Is this symptom I'm getting indicative of a bad front
> wheel bearing?
>
> It's not a misprint, unless the missing space between the zero and the ell
> count.  It's mainly dyslexic or too-fast reading, or perhaps being more
> familiar with ft-lb convention than lb-ft that led him to see 101.
>
>
>
> On Mon, Feb 27, 2023 at 7:18 PM Alex & Janet Thomson <
> aljlthomson at charter.net> wrote:
>
> Wow! That definitely is a car with a broken leg! I’ve never done any work
> on an MG but I’ve never heard of a pre-load of 101 ft.-lbs. for front wheel
> bearings. All of our farm tractors, about 10, from a Farmall H to a Deere
> 4250, use the common specification of “hand tighten to a slight drag, and
> then back off to the nearest castellation”. That’s what I have done on all
> of our cars and trucks over the years and it seems to work.
>
>
>
> Can someone explain the 101 ft.-lb. spec or is that just a misprint?
>
>
>
> Alex Thomson
>
>
>
> *From:* Triumphs [mailto:triumphs-bounces at autox.team.net] *On Behalf Of *Don
> Hiscock
> *Sent:* Monday, February 27, 2023 7:21 PM
> *To:* Philip Ethier
> *Cc:* Triumphs
> *Subject:* Re: [TR] Is this symptom I'm getting indicative of a bad front
> wheel bearing?
>
>
>
> And I lost a front wheel on my TR3B at 70 mph on I-70 in 2014.  I've not
> quite gotten over that episode yet,  Yes, don't fool around with wheel
> bearings!
>
>
>
> The root cause of my wheel-fell-off episode was a restorer who was more
> used to MG bearing preloads than a TR3's non-preloaded bearings.  He read
> this part of the Red Book service instructions as 101 lb·ft, not 10 lb·ft.
> Yikes.
>
> https://photos.smugmug.com/photos/i-7mHq3MK/0/07d96589/O/i-7mHq3MK.png
>
> https://photos.smugmug.com/photos/i-8zPPqt3/0/1e459484/XL/i-8zPPqt3-XL.jpg
>
> https://photos.smugmug.com/photos/i-wBTPGjg/0/5123f2e5/X3/i-wBTPGjg-X3.jpg
>
>
>
> This happened in western Ohio, not too far from Macy's Garage as it turned
> out.  And although Mark and Co. didn't do the work that led to the wheel
> coming off, they know my car and were able to take it into their shop that
> afternoon while I flew home.
>
>
>
> So listen to the voice of two of us with scary experiences.  Take care
> with wheel bearings.
>
>
>
> On Mon, Feb 27, 2023 at 6:01 PM Philip Ethier <pethier7 at gmail.com> wrote:
>
> Don't mess with wheel bearings.  Get it checked out.  I lost a wheel on my
> TR4 on the way home from the VTR in 2005.
>
>
>
> On Mon, Feb 27, 2023 at 5:35 PM Sujit Roy <triumphstag at gmail.com> wrote:
>
> I have a Stag and have checked and changed various components like bottom
> ball joint and top shock mount, but am still experiencing a vibration,
> through the steering wheel,  from the left front wheel only when I'm
> turning left. The car had been fitted with all new poly bushes.
>
> There is no vibration going straight or when turning right.
>
> I plan to swap the wheel with my spare,  but can a bad bearing cause these
> symptoms?
>
> The hub rotates smoothly and there is no noise.
>
>
>
> The TR6 uses a similar vertical link setup as the Stag. The hub
> bearings are tapered.
>
>
>
>
>
> Sujit
>
>
>
> --
>
> Sujit Roy
> Cupertino, California
>
>
> https://triumphstagblog.wordpress.com/
>
> ** triumphs at autox.team.net **
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>
>
>
> --
>
> Phil Ethier West Side Saint Paul Minnesota USA
>
> 1973 Triumph Stag LE22439UBW "uncle jack", Sapphire Blue
>
> ** triumphs at autox.team.net **
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-- 
Sujit Roy
Cupertino, California

https://triumphstagblog.wordpress.com/
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