[Mgs] MGB Clutch Problem

Max Heim max_heim at sbcglobal.net
Thu Aug 23 20:34:49 MDT 2007


Well, it doesn't matter what you did 15K miles ago -- the symptoms say one
of the cylinders is going bad. Try bleeding the slave -- if it pumps out
fluid with the valve open it would tend to indicate that at least the master
is OK. So you can start with replacing the slave and the flex hose. But it's
just as likely that they are both bad -- IME the hydraulics tend to fail as
a system, for whatever reason.


--

Max Heim
'66 MGB GHN3L76149
If you're near Mountain View, CA,
it's the primer red one with chrome wires


on 8/23/07 7:09 PM, dannyvarnado at dannyvarnado at cox.net wrote:

> I'm having a bit of a problem with an MGB clutch master and/or slave cylinder.
> Each morning when I drive to work in my MGA, I have a good clutch pedal with
> engagement at about 1/2 of travel.  On some days by the time I get to work (16
> miles) I must pump the clutch to make it engage.  On other days it operates
> properly.   The same applies in the afternoon on my way home with the
> exception that on some days I must pump it at the beginning of the drive. This
> problem is very inconsistent.  During the times that I must pump the clutch,
> if I do not, it will either not go into gear or the clutch will start to bleed
> down and engage while I hold the pedal down.  I rebuilt both cylinders about
> three years and 15000 trouble free miles ago.  I have no fluid leaks and the
> reservoir is full.  The only thing that I have done to the system was to
> replace the fluid in the reservoir a couple of months ago.
> Any thoughts?
> Thanks,
> Danny V.
> '58 MGA daily driver
> '76 MGB V-6 project


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