Re: PDWAs and tandem master cylinders...

[Tom Tweed <ak627@dayton.wright.edu>]

It seems to me that Joe Schneider, Andy M, and others are correct here,
the PDWA is merely the device that switches on the brake warning light,
and should not be confused with the safety function of the tandem brake
master cylinder.  While a leaky O-ring inside the PDWA can lead brake
fluid, its shuttle does not have any sealing function that would help in the
case of a front / rear circuit failure.

Regards,
Tom Tweed
SW Ohio