TR2/3/3A Clutch Release Bearing

[karls59tr]

Is there a difference in the clutch release bearing and carrier between a TR3A and a TR4A? Is the bearing interchangeable and same for the carrier? Also how far does the release bearing get pushed on to the carrier and what is the best way to do this?

 

[TR3driver]

Yes, both the bearing and the carrier are different; you need to use the ones that match your clutch (not the gearbox). There is a shoulder on both types of carrier that the bearing goes up against.

TRF sells a special tool that they claim was developed in conjunction with RHP (the folks who made the original bearing). P/N RFT121. But I've not tried it myself. Last time I did a TR3 bearing, I just used the bench vise as a press; and the TR4A-TR6 style bearing I used now was installed by Brian Schlorff at Power British (who sold me the bearing & carrier as a unit). The article at https://www.buckeyetriumphs.org/technical/clutch/ReleaseBearing/ReleaseBearingWoes.htm shows the tool and how to use it.

 

[karls59tr]

Anybody have a picture of the TR3 bearing installed on the carrier? Is the flange on the sleeve about 3/16th from the rear of the bearing?

I don'see any difference between the two bronze carriers...one from the TR3A and one from the 4A???

Some release bearings have a "rounded"face that contacts the pressure plate. Is this rounded release bearing for the TR3 "3 fingered" pressure plate and would the "flat" faced release bearing be for the TR4A/TR6 pressure plate?

 

[CJD]

The bearing goes until it hits the rear flange of the carrier. No gaps.

 

[TR3driver]

The round-faced bearing is for the TR4A-TR6 "diaphragm" pressure plate. The flat faced bearing is for the earlier "3 finger" PP.