[Healeys] Vanishing Brake Fluid

[Michael Salter]

Hi Price,
I'm pretty sure that your servo is still leaking internally. The fluid
leaks past the servo cylinder seal and into the vacuum chamber from whence
it eventually finds its way to the inlet manifold and is burned by the
engine and comes out the exhaust pipe.
To check loosen a few of the nuts and bolts on the bottom of the servo
chest and pry the cover back a little keeping the gasket  against the
cover. If fluid leaks out retain it and add a few drops of water to it. If
the that fluid turns milky around the water it is brake fluid and the servo
seals are leaking.
Hope that helps.

Michael S
BN1 #174

On Sat, Feb 27, 2016 at 4:36 PM, R. Price Lindsay <050.rpl at gmail.com> wrote:

> After finding my brake reservoir empty of fluid a few months ago and
> checking all the lines and connections which were sound, I sent my servo to
> be rebuilt.  The repair shop told me there was fuel in the servo causing
> the gaskets to dry out and leak.  OK, they rebuilt it, gave me a check
> valve, sent it back, I installed it with the new valve and I bled the
> system.  I’ve had it out on a few local runs, maybe 50 miles or so.  Oddly,
> on my last trip, I smelled something like anti freeze escaping but the
> system is full.
>
> I just checked the brake reservoir and it’s about 20% down.  So I
> rechecked all of the lines and connections and I couldn’t find any leaks -
> everything is dry.
>
> Should I expect some loss of fluid when the servo is newly installed, the
> system is fully bled and I have a strong petal?  Is there a “mysterious
> place” that brake fluid goes not to be detected?  I’ve heard that the
> master cylinder could cause such an issue but I don’t see any fluid around
> it or the connections and how much fluid could it hold?
>
> Thank you for your help.
>
> Price Lindsay
> 67 BJ8
>
>
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-- 
*If you can't fix it with a hammer, you've got an electrical problem.*
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