[Healeys] Brake issue

[Jean Caron]

Michael,
The article from Roger Moment is in the Austin-Healey Magazine, issue December 2003.
If you are a member of the AHCUSA, you can go on the website and the article is likely entered there as most of the Technical articles for the past several years have been downloaded on the website.
If not I can check if I have a copy of that particular magazine in stock, I am the Historian for the Club.

Jean

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________________________________
From: Healeys <healeys-bounces at autox.team.net> on behalf of Michael Oritt <michael.oritt at gmail.com>
Sent: Sunday, July 28, 2019 11:09:01 AM
To: Michael Salter <michaelsalter at gmail.com>
Cc: Austin Healey <healeys at autox.team.net>
Subject: Re: [Healeys] Brake issue

Michael--

Do you remember the issue and/or can you point me toward it and its possible resolution?

Best--Michael Oritt

On Sun, Jul 28, 2019 at 10:11 AM Michael Salter <michaelsalter at gmail.com<mailto:michaelsalter at gmail.com>> wrote:
Regarding pushrod free play.
Unfortunately the known problem with 100 master cylinders is internal to the cylinder itself and is not resolved by ensuring that the push rod has free play.
Roger Moment wrote an excellent, and of course exhaustive,  article on the subject many years back after he encountered difficulties when using silicon fluid.

M

On Sun, Jul 28, 2019, 9:42 AM warthodson--- via Healeys, <healeys at autox.team.net<mailto:healeys at autox.team.net>> wrote:
I still suspect the lack of proper free play in the brake pedal & this is the easiest to check. Simply adjust the free play, temporarily, such that there is excessive free play & go for a test drive.
Gary H


-----Original Message-----
From: Michael Oritt <michael.oritt at gmail.com<mailto:michael.oritt at gmail.com>>
To: Kees Oudesluijs <coudesluijs at chello.nl<mailto:coudesluijs at chello.nl>>

Kees--

That is about the procedure I envisioned following.

Since there has never been any pulling to one side I doubt the failure is at one particular corner, but the hoses are at least 15 years old and deserve replacement.  I replaced the MC innards with a kit a year or so ago but will go through it again and replace as necessary.  I'll also flush the system thoroughly.

Best--Michael Oritt

On Sun, Jul 28, 2019 at 8:39 AM Kees Oudesluijs <coudesluijs at chello.nl<mailto:coudesluijs at chello.nl>> wrote:
Go through each component one by one. Start with new brake hoses if they are still the old fashioned rubber/textile construction. How old are they by the way? Probably decades so renewal was probably well overdue. Also flush the entire brake system with fresh brake fluid as there may be some debris in it somewhere.  Try again and if solved it may well have been collapsed inner wall of one or both of the tubes. If not solved adjust the rod on the MBC. Still not solved, renew or overhaul the MBC and adjust the rod.
When rebuilding brake components do NOT use clean brake fluid but the special brake grease from Até, Girling or equivalent.
Overheating is unlikely as that will generally lead to complete loss of brakes.
Kees Oudesluijs



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