Release Bearing

[tr250]

Hi,

After listening to what I thought was a release bearing disintegrating, I did a little cross checking of parts on Rimmers site & determined that the GT6 Release bearing is the same as the 2000...this is odd as it's more or less a TR gearbox? I had an "old, but new" QH driven & pressure plate....they came with a GT6 that sat for a long time, but I figured I'd take a chance on it. Bought a new GT6 release bearing here in the states & began the process.

After the good time of pulling the gearbox, replacing all the seals on the gearbox as well as the engine main seal, we started putting everything back together. I noted the locating holes for the pressure plate were too small & had to be drilled, but after having drilled it, It went in & everything was bolted up. I depressed the clutch pedal 3x...unfortunately on that last time, the clutch pedal just stopped and my buddy noticed fluid coming out of the slave. I hit the piston a few times & it went back in it's bore. Unfortunately, the slave started leaking like crazy. As far as we can figure something was in the line acting as a check valve & stopped the piston from going back into it's bore.

Started the engine only to hear a clacking sound coming from the gearbox. It went away except when I lever against the cross shaft arm...it would come back. Could it be I broke either the release bearing or the pressure plate? Anyone had something like this happen?

Regards,

Todd Bermudez
'68 Triumph 2000
United States

[valencia]

Hi there,
I cannot imagine why depressing the clutch pedal 3 times would in some way cause the breakage of the bearing or plate. Possibly you could have a problem with the peg that locates the clutch fork to the cross shaft, did you check the condition of the peg before re-assembly ?
Of course you also need to make sure the slave cylinder itself is free of faults.
Unfortunately in any case I would say that a noise from within the bell housing means that the box will have to come off again to confirm the truth.

[herald1360]

Hi
Your Q H Clutch could well be faulty, I know people that have binned brand new Q H Kits saying they are useless!!
Best fit one from C Witor, maybe?
Paul Barlow
Exeter

[tr250]

OK,

The gearbox is back out...really not that bad 'o job when it's all clean from just having installed it

First thing I saw when the gearbox came out was "flywheel side" on the driven plate. It wasn't me I swear...though I did personally pull the alignment tool...I didn't look(triple check).

I have a feeling the clacking I heard was the release bearing carrier. I've not seen one of these carriers before. IT has slots on either side for the fork pins. On mine one side has a sort of "cup" in it...I'm guessing to keep the carrier from coming off too easy?? Anyone have a pic of a carrier? My guess is that the hydraulics had too much crap in the line & acted as a check valve not allowing the release bearing to go back at all...when I pushed the clutch pedal down it extended the carrier OFF of the fork pins.

Regards,

Todd Bermudez
'68 2000
United States

[Mike Stevens]

Hi Todd,

See the other post here on clutch problems.

There are 2 versions of the release mechanism, the later one coming in well into Mk2 production. I assume it will fit into a Mk1 gearbox but I don't know.

It sounds like you have the original type. The carrier has a 'lug' each side with a sort of slot in it. The fork has a cup on each pin that goes into these slots. The carrier slots do wear with time, ending up with another groove on the pressure side of the slot.

There have been issues with the carrier sliding off the gearbox nosepiece in Stags, but I've not heard of it on the big saloons. Not that it hasn't happened I'm sure.

It sounds like you need at least a new cup - or is it in the bell housing somewhere?

Clutch plate. I ran my Stag with the plate the wrong way round for many miles. I only noticed when I rebuilt the engine/gearbox and fitted a new driven plate. The old one had some witness marks on the extended boss where it was rubbing!

Good luck!

Cheers,
Mike.