[urq] Locking brakes

[Patrick Carlier]

Yes  a known problem , but
what's causing it ?

There's no sign of wear or damage or anything out of the ordinary
to a "faulty"  master cilinder .

Pat



----- Original Message ----- 
From: "fdekat" <fdekat at sentex.net>
To: <urq at audifans.com>
Sent: Monday, March 04, 2013 10:57 AM
Subject: [urq] Locking brakes


>> Message: 1
>> Date: Sat, 2 Mar 2013 07:26:37 +1000
>> From: "Doug Rath" <drath1 at optushome.com.au>
>> To: <urq at audifans.com>
>> Subject: [urq] Locking brakes
>> Message-ID: <C018DE0524874F9181A18242F35F706D at DougPC>
>> Content-Type: text/plain; charset="iso-8859-1"
>>
>> Hi guys,
>> I have had a persistant problem with the brakes on my WR not releasing
>> after a number of aplications.
>> Master ok
>> Brake hoses ok
>> My mechanic tells me that there is a wear spot on the piston from the
>> booster which is causing the problem.
>> We are making a spacer to fit between the master and the booster so as 
>> the
>> piston will operate on a diferent area of the piston.
>> Has anyone experienced this problem.
>> Cheers.
>
> Many have had problems with brakes not releasing/applying themselves *when
> master cylinder gets hot*.
>
> Usually happens in 'stop and go' driving, as underhood temps go way up.
> If you think that may be a possibilty, a very quick test is to spray down 
> the
> master cylinder with a small had sprayer to cool it down.
>
> Is sort of a 'known problem' in the 5000/200/urq world.
>
> (Repair solution is replacemnt of master cylinder.)
>
> =Frank=
>
>
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