[DeTomaso] Clutch woes in Asa's garage

[Will Demelo]

I have a large return spring and it doesn't return the piston all the way 
in. I can still retract the cylinder if I push real hard on the rod.
Will
----- Original Message ----- 
From: "Göran Malmberg" <hemipanter at hemipanter.se>
To: "'Göran Malmberg'" <hemipanter at hemipanter.se>; 
<steven.liebenow at att.net>; "'detomaso, mailing list'" <detomaso at realbig.com>
Sent: Monday, September 07, 2009 9:55 AM
Subject: Re: [DeTomaso] Clutch woes in Asa's garage


> Sorry, the spring behind the piston within the cylinder must be
> weaker than the returnspring to the lever arm.
> Goran
>
> -----Ursprungligt meddelande-----
> Från: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com]
> För Göran Malmberg
> Skickat: den 7 september 2009 15:33
> Till: steven.liebenow at att.net; 'detomaso, mailing list'
> Ämne: Re: [DeTomaso] Clutch woes in Asa's garage
>
>
> It can be an idea with the return spring in the slave cylinder, but the
> return spring must be much stronger, or else we will lose play for the
> release bearing.
> It's a big difference between the brake system and clutch system so that
> the clutch system moves much more fluid. This means that the pipes
> should be of larger dimension than that of the brake system. One way to
> reduce the volume of oil transported in the system is not having very
> large diameter of the main and slave cylinder, which is an advantage.
> For example, master cylinder 7/8" and the slave cylinder 5/8". The
> downside of this is that the smaller dimensions of the cylinders create
> increased load on the pistons and their rubber sealing. We can also use
> 1" master cylinder and 3/4" slave cylinder for about the same ratio,
> which is kinder to the cylinders but requires larger fluid tubing.
> Therefore it might be better to lessen the slave diameter than icreasing
> the master diameter in order to gain slave movement.
> Goran
>
>
>
> Asa Jay,
>
> I must agree with the questioning of the spring in the slave..... why is
> it even there????  The Goose runs a 3/4" bore slave, no spring.  I like
> the idea of having it fully seated....at rest (plus required gap...for
> fork finger withdrawal).
>
> If you eliminate the spring in the slave for kicks and giggles, and it
> still does not resolve issue.....
>
> ...then look towards master.
>
> You said that it was difficult to push fluid back up the line.....could
> be a restriction in the master's plumbing???  Presuming that someone was
> in there and replaced it with some slightly incompatible unit??? Looks
> similar....acts different?
>
>
>
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