[Mgs] 1967 MGB-GT Master Cylinders

[Max Heim]

You are aware that there is a rubber plug in the firewall that lets you access the fittings from the driver’s footwell? As Larry suggests, if you are doing both cylinders, it may be easier to remove the whole box as a unit. But I have recently replaced the clutch cylinder on its own on my driver.

If you do pull the box, make sure you get new gaskets for it and the cover, to avoid engine compartment heat leaks into the footwell.

I installed both cylinders and the box as a unit on my new project, and that is definitely simpler. I thought about changing to a dual circuit system, but decided against it. Didn’t seem worth the hassle — I figured I would just make sure the hand brake was properly adjusted.

--
Max Heim
'66 MGB


> On Nov 30, 2017, at 11:33 AM, David F. Darby via Mgs <mgs at autox.team.net> wrote:
> 
> It’s good to see some new chatter on this list. Did everyone go off to FaceBook or something? <>
>  
> I’m preparing to replace both the brake master cylinder and the clutch master cylinder. I’ve not done this job on the MGB (1967 GT, single circuit) before and I’m not quite sure how to proceed. The workshop manual just says to disengage the pedals, disconnect the pipes, and remove the fixing bolts. The space around the hydraulic lines and the cylinder fixing bolts is very tight and I’m having trouble making my arthritic hands work in there. Has anyone done this before and have any useful tips?
>  
> Thanks for any help.
>  
> Cheers,
>  
> David
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