[TR] Any suggestions ?

[Andrew Uprichard]

On the first pus, the slave pushrod doesn't move enough to fully disengage,
but the second push is fine (rod moves probably a quarter-inch more).

Bled the line at the master cylinder, but that didn't help.  The master had
been rebuilt, so I replaced it with a new one:  the slave was new from the
get-go.

Andrew

-----Original Message-----
From: Triumphs [mailto:triumphs-bounces at autox.team.net] On Behalf Of Randall
Sent: Sunday, November 01, 2015 1:21 AM
To: triumphs at autox.team.net
Subject: Re: [TR] Any suggestions ?

> New TR3 rebuild with new clutch lines, master cylinder and slave.  
> Silicone Dot-5 used throughout.  Clutch still "pumps up"

Do you mean it holds pressure all the time, or just that the pedal gets
higher?

I'd try cracking the fitting loose at the MC outlet and see if that
immediately changes the problem.  If it does, then it is a MC problem and
Tony is probably right about the pushrod being too long (or the stop being
misadjusted).  (Another thing to check for would be the pedal hanging up and
not returning fully.)

If it is just the pedal height changing, though, without holding pressure in
the system; then the slave is not returning fully.  The spring is weak or
the slave is binding.

When I installed a later TR6 gearbox, it moved the clutch slave rearward
enough that the return spring was too long.  I had to fabricate a tab to
stretch the spring a bit farther to get the slave to return reliably under
just spring force.

-- Randall  


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