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Re: Leaking master cylinder

To: vgulley@cox-internet.com, spridgets@autox.team.net
Subject: Re: Leaking master cylinder
Date: Mon, 30 Aug 2004 05:34:35 EDT
In a message dated 8/29/04 6:56:10 PM Pacific Daylight Time, 
vgulley@cox-internet.com writes:


> Must I rebuild everything? or can I flush & install DOT4.   Or can
> I swap over to use silicon fluid (preferably).  by the way it is a 1500
> midget.

Well,you can flush and install DOT 4--most of the guys on here, including 
myself, swear by Castrol LMA Brake Fluid.  You can't mix DOT 3/4 and Silicone, 
so 
if you are going that route you have to flush out the lines, MC, and wheel 
cylinders very well.  I have heard of draining out the lines then flushing them 
out with alcohol, then blowing them out and letting them dry before 
siliconing.  Good to change out the old fluid  anyway if you have really old 
brake fluid 
in the lines.  But I think if you are leaking there may be a physical problem 
you are going to have to address.  You might have a scratch in the bore if 
you have already rebuilt it.  Did you hone out the bore before you replaced the 
seals?   Best is to pull and dissassemble it and send it to Joe Way in 
California for a brass insert and rebore.  I understand that is fairly 
permanent.

--David C.

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