[Spridgets] What fluid for clutch master cylinder?

Guy R Day grday at btinternet.com
Thu Oct 13 01:33:06 MDT 2011


I am not getting or bitching at any individual, it just happens to be this 
series of posts.

On what basis - and that is a factual basis and not hearsay - can it be 
said:-

<snip> seals in our Lbs. aren't made for silicone fluid.<snip>  meaning they 
will not work.

I am fed up of reading that fallacy.

Guy R Day

----- Original Message ----- 
To: "Spridgets list" <spridgets at autox.team.net>
Sent: Wednesday, October 12, 2011 9:43 PM
Subject: Re: [Spridgets] What fluid for clutch master cylinder?


> Well, I disagree.  Water will not mix at all with sillycon.  If you don't
> keep the moisture in your brake system in suspension in the brake fluid, 
> it
> will pool at the low points and will corrode wherever it sits.  Eventually
> it will start leaking.  The good thing is that it won't eat the paint. 
> The
> bad thing is that if you don't notice it, you won't be able to stop.
>
> A much better idea for safety is to change the brake fluid every other 
> year,
> or if you race, after each race.
>
> Plus, see ****  post about how seals in our LBCs aren't made for silicone
> fluid.
>
>
>
>
> On Wed, Oct 12, 2011 at 2:02 PM, **** wrote:
>
>> ... but if you don't use the car on a regular, everyday, way, Silicone 
>> will
>> be
>> there for a very long time.  It's the perfect thing for a hobby car.  Not
>> so
>> good for a racecar.
>>
>>
>>
>> On Oct 12, 2011, at 10:32 AM, **** wrote:
>>
>> > I'm not sure what you're saying, ****.  Do the seals not seal because 
>> > you
>> > used DOT5?  Or you redid the hydraulics because the seals were no 
>> > longer
>> > sealing and then you switched to DOT5?  Or am I over-analyzing?
>> >
>> > Stick with DOT4 or Castrol LMA.  Both have a higher boiling point than
>> > DOT3.  The only thing going for DOT5 is the paint thing.  Water in the
>> > system should not be a problem if you flush and refill it every two
>> years.
>> >
>> >
>> > On Wed, Oct 12, 2011 at 1:35 AM, **** wrote:
>> >
>> >> Yes, have been using DOT 5 for years.  When I redid my hydraulic 
>> >> system
>> a
>> >> couple of years ago none of the seals would seal so the car sets 
>> >> waiting
>> for
>> >> us to finish our adventures.  Was just hoping there might be another
>> choice.
>> >>
>> >>
>> >> On Oct 11, 2011, at 5:07 AM, **** wrote:
>> >>
>> >>> As far as I know, the only "paint safe" brake fluid, is DOT 5 
>> >>> Silicone
>> >>> fluid.
>> >>>
>> >>> On Mon, Oct 10, 2011 at 9:58 PM, ****>> wrote:
>> >>>
>> >>>> Thanks, not what I would like to hear but thanks anyway.
>> >>>>
>> >>>>
>> >>>> On Oct 10, 2011, at 10:44 AM, **** wrote:
>> >>>>
>> >>>>> Yes.  Don't spill it!
>> >>>>>
> _______________________________________________


More information about the Spridgets mailing list