My understanding is the TR250 and the early TR6 through '70 CC52952 used
the .75. Triumph changed it to .70 to decrease the pedal pressure --
about 7% I think.
My understanding is the slave cylinders are all the same.
I have a TR250 and am looking for an early TR6 and I would plan to
install the .75 MC for the same reasons -- more slave cyl travel.
I believe this will work, but would welcome comments from someone who
has done it, or has info to the contrary.
Don Malling
Steve Cirimele wrote:
> Hey there Listers,
>
> I'm thinking of purchasing a new Clutch Master Cylinder
> to help overcome the infamous "difficulty of clutch
> disengagement" problem. The holes are out of round on
> both my clutch pedal and also on the actuating arm of
> the clutch master cylinder.
>
> I'm going to have the clutch pedal repaired at a
> machine shop (per suggestions in the archives of this
> list - using some kind of bushing to ease repair next
> time). But what about the "out of round" problem on
> the arm of the clutch master cylinder? I can't buy a
> replacement arm, but I can buy a whole new master
> cylinder. (Also, maybe I can have the shop repair the
> holes on the M/C as well as the pedal)...
>
> But the thing I'm really wondering about is whether or
> not I should install a 0.75" diameter Master Cylinder
> (I have a 1970 TR6, which comes with the 0.70" diameter
> M/C). Since I don't see two available sizes for the
> clutch Slave Cylinder, I'm thinking that Triumph
> decided to put more volume into the master to reduce
> the necessary clutch pedal travel a bit. Make sense?
>
> Any suggestions or experience installing a 0.75" dia
> master cylider on a TR6 year model that calls for the
> 0.70" diameter one?
>
> Many Thanks,
>
> Steve
> 1970 TR6, non OD.
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