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Re: Slave Cylinder Return

To: Ct54531@aol.com
Subject: Re: Slave Cylinder Return
From: Jim Davis <jh_davis@mindspring.com>
Date: Sun, 05 Sep 1999 16:08:25 -0400
Cc: triumphs@autox.team.net
References: <561d2120.2503ea85@aol.com>
On the TR6 the diaphram springs in the pressure plate push the throwout
bearing, fork, shaft and rod back to the *rest* position. I assume, but
don't really know that the TR4 works the same way.
Jim Davis
  

Ct54531@aol.com wrote:
> 
> Putting the 4A back together. The old slave cylinder was shot so I got a new
> one. After ordering but while waiting for it to arrive, I mused over the way
> the system operates down there. Having removed the old one, I saw the set-up
> I had and most seems obvious. The fluid goes into the cylinder,  pushes the
> piston against the push rod which pushes the cross lever which pushes the
> bearing. OK.
> But then, I pondered, what makes the push rod come back. I assume the return
> spring inside the cylinder retracts the piston but it's not attached to the
> push rod.
> So I looked in Haynes, and Ken Ball's Autobook, and VB and Moss and, etc. -
> and every one of them show an 'anchor plate' and a 'return spring' on the
> outside of the cylinder. That answers my question, I guess, but the 4A didn't
> have one - neither does the 4 I have for a parts car. Now the car hasn't been
> driven in several years but it was before. It was even a daily driver for a
> while, and I am sure there was no clutch problem. Can this car operate
> without that return spring?
> Secondly, is there any generic sort of spring I can use for this. I hate to
> wait for the spring (or pay more shipping than its cost). If it's of a kind
> that can be bought in a hardware store, what are the dimensions?
> Finally, I see that the spring hooks on that anchor plate at the rear. Where
> does it go towards the front. In the hole where one of the bolts attaches the
> cylinder to the plate?
> TIA

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