[ROVERNET - UK] Bleeding brakes!

[Steven Dibdin]

Intended pun!

Hi All,

I'm after the collective knowledge of the RoverNet community. Some of you 
may know my friend Rowland Copeland and his 1969 2000TC. He lost his brakes 
a while ago and after investigating we found that most of his brack fulid 
had ended up in side the vacuum canisters of both brake servos. So, they 
were distpatched to Ruth Burgess and came back looking and feeling great.

So i have been helping him bleed his brakes so that he can get the system 
working again. I did similar work on my '68 TC the year before lats and 
after a bit of work and guidence from eric and Ruth git everything working 
fine.

With Rowland's car we have tried all the normal tricks; cracking open the 
unions on the the nose of each servo, jacking the rear of the car up to give 
the rear line a good incline to help stop air locks etc. And still no joy, 
last weekend we tried a mity vac and got through a quart and a half of 
fluid.

I'm beginning to think that it's not me but something else that is causing 
the problem, maybe the master cylinder. Here's what we've got so far:

>Two pumps of the brake pedal give a bit of pressure.

>The reaction piston that actautes the air valve on the servos rises on the 
>rear servo, but not the front always (Suggests that rear system is working 
>somewhat).

>Rowland reckons that the brakes went with no warning of failure (fortunatly 
>he was just coming out of the car wash when this happed!).

>Judging by th estate of the fulid in the servo's vac canisters they had 
>been leaking for a while.

With the exception of the clutch system on my car (turned out to be a bad 
master cylinder re-sleeve at some point). I've never had this trouble 
bleeding a hydrolic system before.

Sorry for the extra long email, but I've run a bit dry on ideas with this 
one.

Thanks to any one with suggestions,

Steven Dibdin

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