[Fot] TR6 Race Clutch Release Bearing - Hydraulic or Standard wSlave Cylinder?

[Bert Brown]

 I was just at the Monterey Historics this weekend hanging out with 2 racer friends and one of their friends pops into our pit space with the news that his internal hydraulic release bearing leaked in the Friday session and the clutch was inoperable.  He had a Cobra and pulling a trans in one of those cars is an absolute bitch!  He wanted to know what our experience was with these bearings and if we had a replacement.  Everyone said they have had many problems with hydraulic leaks with these internal release bearings and "no", they didn't have a spare.  
Everyone's vote at our pit was to use the external linkage and slave cylinder.  When I used to go to the track with my car I always carried spare hydraulics and the external cylinder on my Spit was a snap to change.
By the way the Cobra guy couldn't find a replacement at the track and loaded his car on his trailer and missed his race.  All because of a damn internal hydraulic release bearing that he never thought he would have to replace!  Racing is fun!
Bert Brownex GP Spitfire
    On Sunday, August 18, 2024 at 07:59:48 PM PDT, Charly via Fot <fot at autox.team.net> wrote:  
 
 Mark, I have always run the 'stock' style T.O. bearing.  I've run several different clutches, from Laycock to Tilton, and have always had good luck with it.
I've known several TR racers who have used the 'hydraulic' type  mechanism and have always had problems at the track and have been difficult if not impossible to fix.
My vote is the stock linkage and a Tilton clutch, 
BTW, car is still for sale.
Charly Mitchel
TR6 #44

On Sun 18/08/24  7:05 PM , Mark Cook via Fot fot at autox.team.net sent:
> So, I one of my TR6s has a close ratio transmission with Mcleod hydraulic
> release bearing, which is leaking.  While there, trying to decide on
> whether to go back to a stock bearing, yoke etc, with an external slave
> cylinder.  For reference, as part of the engine rebuild, going with the
> Racetorations Arrow billet crank, 7 1/4" lightweight flywheel, cover
> and four paddle clutch disc. 
> Not keen on having to remove the transmission for seal leaks related to the
> hydraulic release bearing.  At the same time not familiar enough to know if
> a hydraulic release bearing's failure rate is any worse than a standard
> release bearing.  Everything I have read makes the hydraulic bearing seem
> more sensitive to initial set up as well.
> Thoughts?
> 
> Thanks,
> 
> Mark Cook
> 
> 
> 
> 
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