[Spridgets] Master cylinder maintenance

[Allen Hefner]

Phil,

As many listers know, I have never been one for sillycon brake fluid. By
making the switch FROM silicone back to the glycol, my bet is that you will
eventually wind up rebuilding all of the brake system. Maybe not all at
once, but these things don't like change.

The problem is in how the rubber bits absorb the fluid. They are now used
to breathing silicone.

I suggest you rebuild the MC and stay with what you have been using.

If you really want to change, you should flush the system with new, DOT4
brake fluid. After you are certain that everything has been flushed thru,
bleed as normal. And have the rebuild kits on hand for your calipers and
wheel cylinders.

And don't follow too closely for a while, in case you have to stop quick.
Safety Fast!

 Allen Hefner
Norristown, PA

*Current:*
2006 Chebbie
*Former:*
1963 Sunbeam Alpine Series III
1967 Triumph TR4A IRS
1964 VW Type I
1967 VW Type II
1967 Rover 2000TC
1977 MG Midget



On Tue, Jul 10, 2012 at 3:00 PM, Philip Nase <nases at verizon.net> wrote:

> I've been using silicone in my Bugeye master for 4 years but I noticed some
> fluid on the pedal pads during a long ride yesterday. The MC rubber I had
> was
> supposed to be for use with the silicone but maybe 4 years is too much to
> expect.
>
> Anyway if I switch to conventional  fluid what should I flush the system
> with?
> And do I need to replace anything that is currently ok such as hoses or
> wheel
> cylinder rubbers?
>
> I initially used the silicone to help save my paint from mishaps but may
> change now.
>
> Thanks.
>
> Phil Nase