[Healeys] clutch hydraulics question

[Ed O'Neal]

There is no suction from the hydraulic system. The pressure plate springs push the rod back in AS the clutch peddle is returned. Actually if you push in the peddle with the rod disconnected then release the peddle additional fluid will be drawn in from the reservoir and another push on the peddle and the rod will pop all the way out.

Actually there is a small spring inside the slave cylinder positioned to lightly push the rod outward for which there is no apparent reason. I discovered this when I tagged out the carbon throw out bearing in berry little miles. Apparently my clutch linkage had very little resistance and this spring was maintaining contact of the bearing. Since there was no reason for the spring, I took it out. Everything has worked fine for more than 25K miles




Sent from my iPhone

On Aug 24, 2018, at 10:23 PM, i erbs <eyera3000 at gmail.com<mailto:eyera3000 at gmail.com>> wrote:

I think the throw out bearing pushes back on fulcrum arm and that pushes piston forward. I need to lengthen the fulcrum point on my smitty 5 speed system so the clutch engages higher up. Some day I will.

Ira Erbs
Portland, OR
typos and artifacts are the fault of my phone

On Fri, Aug 24, 2018, 5:15 PM Bob Haskell <rchaskell at earthlink.net<mailto:rchaskell at earthlink.net>> wrote:
Listers,

If the clutch lever arm is disconnected from the slave cylinder push rod
and the clutch pedal is pressed to the floor, the push rod is pushed to
towards the rear of the car.  When the clutch pedal is released should
the suction created in the hydraulic system pull the slave cylinder
piston back in?  Or does the system rely on just the pressure plate
springs to move the release bearing/lever arm/rod/piston back?

Cheers,

Bob Haskell
AHCA 3000 MkI registrar
http://www.ciahc.org/registry_3000mk1.php
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