[TR] Clutch Master Cylinder?

[Geo Hahn]

Johnnie -

I would suspect that the seal at the end of the piston assembly is leaking
- a common failure that results in ineffective clutch but no leaking
fluid.  That seal is what is supposed to keep fluid (fluif) from being
pushed back into the reservoir (and thus causes pressure to move the
slave).  Item 28 in this drawing:

http://www.revingtontr.com/CatalogueImages/TR4/W.jpg

The seal (like a little cap) is a part of the usual rebuild kit.

Geo

On Tue, Mar 31, 2015 at 6:40 PM, John & Pat Donnelly <pdonnel1 at san.rr.com>
wrote:

> Symptom - the clutch pedal fades in pressure to where's there is none.
> Observing the master cylinder fluid level in the reservoir, after
> depressing the pedal it rises as the pedal pressure fades, and almost
> overflows. When the pedal is released the fluid level goes back down to
> it's original starting level. Dot 4 brake fluid. Has HVDA transmission
> conversion. Fluid bled multiple times. Same results.
>
>
>
> What's happening to make the fluid level go up?
>
>
>
> Johnnie
>
> '67 TR4A
>
>
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