<VV> Weak brake action

[Ron]

In response to your question, it depends entirely on the condition of the MC 
and why it's leaking.  If there's a deeply corroded pit right where the 
rubber cup is, it needs to be sleeved and rebuilt or you need a new one. 
Those are your only two options.  If there is no pit, which is doubtful, 
just hone and install a new kit.  The solution is clear once you look at it.
RonH

----- Original Message ----- 
From: "Charles McKinley" <cmckinley313 at cox.net>
To: <virtualvairs at corvair.org>
Sent: Tuesday, December 08, 2009 6:22 AM
Subject: Re: <VV> Weak brake action


> Thanks very much for all the helpful suggestions sent in by a whole
> bunch of you in response to my query below. Now there's a new wrinkle
> - I've discovered that I'm losing brake fluid from the master cylinder
> even when the car is parked in the garage (which has been almost all
> the time the last few weeks.) It takes about a week for the cylinder
> to drain from topped up to almost the bottom of the reservoir. It
> appears to be leaking from the back of the master cylinder, where the
> brake pedal rod goes in. For what it's worth, the rubber boot that's
> supposed to be on the rod is absent - don't know if that got missed
> when I did the rebuild a dozen years ago, or if it got eaten by brake
> fluid, but it's just gone. Also for what it's worth, I never had this
> problem (fluid leakage) before I went through all the exercises
> described below to try to fix the brake action problem, and I wonder
> if I might have popped a seal in the master cylinder with hundreds of
> hard pumps on the pedal to check the action. There's no sign of
> leakage at any of the joints between brake lines, hoses, or wheel
> cylinders, and the action is still very solid as descibed below, so
> I'm focused on the master cylinder. Here's my question: would I be OK
> to do another rebuild of the MC (for about $30) or would it be smarter
> to spend about $70 for a complete new MC? I'm leaning toward the
> latter, but would like to hear your thoughts.
>
> Thanks in advance,
>
> Chuck
>
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