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MG parts spares and accessories are available for MG T Series (TA, MG TB, MG TC, MG TD, MG TF), Magnette, MGA, Twin cam, MGB, MGBGT, MGC, MGC GT, MG Midget, Sprite and other MG models from British car spares company LBCarCo.

MG TD TF 1500 - Clutch roller release bearing

I'm curious about this (eBay item number 141088288288). Does anyone have any experience with this or similar products? Will this particular one fit and work well in our cars? Any problems or concerns?

Thanks,

Kirk
Kirk Trigg

The only issue I've had with roller release bearings is when or if the bearing is not EXACTLY centered. When this is the case the eccentric motion can chew up the bearing.
Lew Palmer

My concern is how is the bearing aligned so that it forces itself against the clutch cover squarely and retracts squarely so that one edge of it is not riding on the clutch cover all the time?
John Quilter (TD8986)

I fitted, fitted and fitted one a few years ago at a customer's request (not this type, but a roller release bearing), and no matter how I tried, it never quite was centered. He wore through it in about 20,000 miles and had to pull the engine to replace it - with a carbon one - and the clutch cover. My personal feeling is that if the original works so well, don't try to up-grade it. I did the clutch arm modification at the same time, so it was impossible to judge whether the pedal action was any easier.

Tom Lange
MGT Repair
t lange

Stick with the original carbon T/O bearing and keep your foot off the clutch pedal, except to shift. At stops, shift into neutral and get off the clutch, this will make the bearing last as long as the clutch itself. Cheers - Dave
David DuBois

Kirk,

Below is my comments on this subject from the archives dated 2007.

John

There are two reasons to retain the carbon thrust bearing:

1/ The bearing designed to wear, this is to compensate for the wear on the clutch linings. without this, the clearance would need adjusting more often. on modern cars there is some sort of automatic wear takeup system on the pedal.
2/As the bearing on the TD moves in and out it traces an arc, this means that it is only centered in one position, this could cause failure on roller bearings, however the carbon can handle this misalignement. Again on modern cars the roller bearing is constrained to move in a straight line by a tube around the primary shaft.

J Scragg

All,

As usual, I neglected to check the archives before posting my question. Thanks for your responses. I'll stick with the carbon throw out bearing per your recommendations.

Thanks again,

Kirk
Kirk Trigg

I realize that the MGA has a hydro. clutch and the T-types mechanical, but I have had a roller release bearing in the "A" for over ten years and have been very happy with it.
David Werblow

This thread was discussed between 13/10/2013 and 15/10/2013

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