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MG TD TF 1500 - Front wheel bearigs

I am restoring a 1950 TD, the front wheel hubs are worn with the outside bearing bore oversize by appx. 0.020". I feel that it is worn too much for Loctite so I thought I may machine the bore and install a sleeve with the correct bore size. I may have to shrink the sleeve into the new bore by freezing the new sleeve and placeing the hub into my wifes oven to reach about 180deg C. Once the new sleeve is installed then this could be machined out to standard.
Has anyone experienced this before. I would appreciate any comments you may have.

John...Sydney
J Walton

John you could contact the Wolseley Car Club of N.S.W and ask if they have any Wolseley 4/50 front brake drums as these are common to the TD,that is 9" 5 stud.
Regards Wayne Routley TD 1864 Y6668
W Routley

Thank you Wayne I will contact the Wolseley Club. Hopefully they maybe able to help me.
John
J Walton

Hello John I would assume that your T.D. is equipped with spoke wheels . John
J .R.C Cavey

No John, it has steel wheels, the wheels with the holes in them (I think 15). The hub and the brake drums are seperate however where there are drums and hubs complete as in the later model then they also fit.
It is a terrible design and the wear of mine show that to be so.
John...Sydney
J Walton

Hello John In asking the question I wanted to make certain of the hub you were referring to. Is the bore in your hub now oval due to its wear and if it is out of round, by how much ? 0.020" is substantial wear . I am concerned that removing that much material plus the thickness of the sleeve you maybe crossing the threshold of structural integrity . Maybe stepping-up to a bearing with a larger O.D. could be a safer alternative, assuming they exist . If you would e-mail me the size of the existing bearing I will check my stock of oversize bearing's . John
J .R.C Cavey

Thanks John
The existing bearing, which is new, is a NSK 6304. The OD of this is 52mm ( 2.047"). The hub measures 2.055" and 2.049" which is out of round. So you can see there has been substantial wear, a little less than the 0.020" I initially stated. I tried Loctite 620 however it was too much to expect it to work correctly.
John
J Walton

John The last several days I've been tied-up. Tomorrow I will check what bearing's I have. Just maybe I will be able to assist. Thank-you John
J .R.C Cavey

Thanks John I look forward to that. John
J Walton

Hello John . On diameter your new bearing is 2.047 " or a little less .Your hub bore now measures 2.055" on diameter @ its greater point . This means your off spec by O.008" or O.O10" allowing for an additional 0.002 you are off spec by 0.012" maximum . Therefore if I have a new bearing at 2.057" or slightly greater you should be able to easily open-up the bore on your hub. John
J .R.C Cavey

Hi John
Would you be good enough to send your email address for I would like to obtain the o/size bearing from you.
Regards
John Waslton ...vabre@optusnet.com.au
J Walton

Hi John
Would you be good enough to send your email address for I would like to obtain the o/size bearing from you.
Regards
John Walton ...vabre@optusnet.com.au
J Walton

Hello John. Unfortunately I do not have the size bearing you need . The closest size bearing I have would leave you undersize by 0.004". May I suggest you contact bearing suppliers down and under and request a bearing with a outside diameter exceeding 2.057" . You should be able to true up you hub bore to 2.057" or slightly larger If you are able to locate a bearing 2.060" - 2.070" your off and running. Please bear in mind that your bearing size will be governed by the amount removed from the bore of the hub If I can be of further assistance I have enclosed my e-mail address . John
J .R.C Cavey

John,
Many thanks you for you help.
John
J Walton

I'm wondering if a speedy sleeve would be applicable?
MG LaVerne

Laverne, I looked at using a speedy sleeve but decided they were too thin, so I machined out the hub by 1/32" to 2.359" and made a sleeve to suit with a 0.002" interference fit. I pressed this into the hub and remachined it back to the standard size of 2.047" (52mm)
I have re-installed it onto the car and am very pleased with the result. I could have bored out the hub for the sleeve a little large however I didn't want to take out too much material for fear of weakerning the hub.
Thank you for your concern.
John
J Walton

This thread was discussed between 15/12/2013 and 20/12/2013

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