[Spridgets] What fluid for clutch master cylinder?

[Dean Hedin]

My experience with LMA is that over time it crystallizes into this yellow
grit that gets between the rubber seal and the walls of the wheel cylinders.


I went through this twice before I converted to silicone.  I will never go
back.

I think you are correct, the above is moisture/oxygen combining with the LMA
fluid.  But once it starts it becomes self perpetuating and things go down
hill very quickly.  

But with the Silicone fluid this process does not even begin in the first
place.

The "safe on paint" aspect of Silicone is a double edged sword.  It also
prevents new paint from sticking should you inadvertently get it on a
surface.   It is very persistent in this regard.


-----Original Message-----
From: spridgets-bounces at autox.team.net
[mailto:spridgets-bounces at autox.team.net] On Behalf Of Allen Hefner
Sent: Wednesday, October 12, 2011 4:43 PM
To: Spridgets list
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 Bob K's post about how seals in our LBCs aren't made for silicone
fluid.

 Allen Hefner
Norristown, PA