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Re: LEAKY NEW BRAKE MASTER CYL

To: Ceicia@aol.com, mgs@autox.team.net
Subject: Re: LEAKY NEW BRAKE MASTER CYL
From: Ajhsys@aol.com
Date: Sat, 17 Jun 2000 06:58:37 EDT
In a message dated 06/16/2000 9:42:06 PM Eastern Daylight Time, 
Ceicia@aol.com writes:

<< On my '71 MGB my brake master cylinder (tandem unit, circular reservoir) 
 finally quit.  It was at least 7 years old.  I put in a new master cylinder, 
 ran it for about two weeks, and it started leaking fluid down the pedal.  
The 
 location of the leak was on the pushrod end of the unit.  The fluid was 
 leaking out the weep hole (guess that's why they put it there) in the 
pushrod 
 accordion boot.  I put in a second master cylinder - after about a week, 
same 
 problem.  That pushrod area is not one you touch in the swap out.  I've 
stuck 
 strictly to Castrol LMA brake fluid.  Is anybody else getting  defective 
 units master cylinders?  It's too painful to contemplate doing this job 
again 
 and finding out that I have another bad unit. >>

- - - - - - - - - - - - - -

Where'd you get the rebuilts?  For best results, get a resleeved MC with a 
brass sleeve.  These are expensive, but they are the best and they are 
guaranteed forever.  Cheap rebuild jobs, like the kind you get at Advance 
Auto and the like, are just honed to a larger size and they use oversize 
seals.  Sometimes the pitting is too bad for this proceedure and they don't 
really inspect them well enough to see it.  That's why they are so cheap.

Contact White Post Restorations, and I know there are some other, but they 
don't come to mind.

Allen Hefner
Philly Region SCCA Rally Steward
'77 Midget
'92 Mitsubishi Expo LRV Sport

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