[Rovernet] leaking fluid from 3500s brake fluid pressure switch

Tom Rymes tom at rymes.net
Mon Sep 21 08:19:41 EDT 2015


Peter,

Further to what Fletcher mentioned, this should give you an idea of how this switch works. I can't say if it's identical to the one found in MGB/C, but it almost certainly works in the same way.

http://m.youtube.com/watch?v=v8ijl6k_1a8

Tom

> On Sep 21, 2015, at 8:10 AM, Peter King via Rovernet <rovernet at rovernet.org> wrote:
> 
> Thanks for that info, Fletcher. I’ll look into that.
> 
> pk
> 
> 
>> On Sep 20, 2015, at 8:19 PM, Fletcher Millmore via Rovernet <rovernet at rovernet.org> wrote:
>> 
>> There should not be any fluid in the area that surrounds the bottom of that switch.
>> If there is, it means the seals in the shuttle valve are leaking.
>> I do not know for certain, but it is very probably exactly the same shuttle valve and seals as any other British car of the period, usually 4 little O rings.
>> Some early ones may have little cup seals for two of them.
>> You can buy that seal kit for MGB etc, try one.
>> 
>> FRM
>> 
>>> On 9/19/2015 1:31 PM, Peter King via Rovernet wrote:
>>> HI Netters,
>>> 
>>> Anyone know where I can find a replacement brake fluid pressure failure switch? I’m talking about the plastic switch with a brass plunger on the end that screws into the sidewall-mounted unit, and a two-prong electrical connection going to the reservoir switch.
>>> 
>>> Mine is leaking brake fluid.
>>> 
>>> thanks,
>>> 
>>> Peter
>>> 
>>> 
>>> 
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>> 
>> 
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> 
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