<VV> Fwd: dual M/C

[Ken Pepke]

Is the bleeder screw test valid?  Would it be possible to press the pedal down gently enough that the slider valve does not slide?  When my 63, with the 67 MC including the side block switch / valve assembly, lost a wheel cylinder it made the brake pedal high and hard.  That is, the brakes took twice as much force on the pedal to stop the car and the pedal traveled a very small amount.  I drove that car on the front brakes for quite a while ... until somehow I got the slider back to the middle.  I took that brake assembly off an old car so I do not know for sure that it was a original factory assembly. 

Why would GM / Chevy add the extra expense of the dual MC if it did not do for the Corvair what was advertised to do for their other models?
Ken P


Begin forwarded message:

> From: <tkalp at cox.net>
> Date: January 8, 2011 2:29:48 PM EST
> To: virtualvairs at corvair.org, Lon Anderson <lonzovair at aol.com>
> Subject: Re: <VV> dual M/C
> 
> Lon,
> 
> That is a good point, but in the past several people that converted their Corvair to a dual master cylinder had complaints about the brakes getting harder and harder . . . the problem was solved by shortening the rod.
> 
> We do know that the pedal assemblies on '67 and later (dual master cylinder) Corvairs were different.  The common reason stated was to clear the larger mast on the collapsing steering column . . . maybe there were differences in travel also.  Have a '68 parts car will check the pedal travel on it compaired to '66 and earlier.  Will report back.
> 
> Terry Kalp
> Wichita, KS

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