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Re: [Spits] PDWA valve

To: jimmuller@rcn.com
Subject: Re: [Spits] PDWA valve
From: Donald H Locker <dhlocker@comcast.net>
Date: Sat, 31 May 2008 12:55:49 -0400
I also recommend pressing by hand, not by foot.  Your fingers can make more 
than 
enough pressure and the feel as the shuttle moves is quite distinct.

Donald.

jimmuller@rcn.com wrote:
>> I did some brake work on my 76 Spit this past winter...
>> my brake warning light came on and I am having trouble
>> centering the shuttle... Does anyone have advice with
>> this problem?
> 
> When I got my GT6 the PDWA wasn't centered, and when I rebuilt the Spitfie's 
>brakes it got uncentered.  For the GT6 I ended up taking the PDWDWA apart to 
>free the piston, then installed it with the piston centered and was careful 
>not to overpush the pedal when bleeding the brakes.  At least I think I 
>remember that's what I did; in any case, the PWDWAMDWA was centered when I was 
>done.  On the Spitfire I centered the PDMDWAMPDWADA the way you're supposed 
>to:  After everything is bled (blud?), open a valve slightly on one end of the 
>car, then slowly depress the pedal until the light goes off.  If it doesn't, 
>then the piston's position must be that it is slud over to the other side, so 
>close the first valve and open one from the other end of the car.  When you 
>are pushing the pedal be careful not to push it so fast that it just jumps top 
>the other side immediately.  And since you have to do this with the system 
>powered, you might want to disconnect the wire to the coil, or test
 t
>  h!
> e switch by attaching an external light or something.
> 
> Jim Muller
> GT6+, Spitfire
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