Re: TR6 Pressure Differential

[pethier@isd.net]

>It is a PDWA, Pressure 
>Differential Warning Actuator.  It is not a valve.  I stress this because
many people 
>mistakenly believe it will shut off the hydraulic pressure to the bad
brake 
>circuit.  It does not.  The only thing this does is detect a pressure 
>differential between the two sides and light the warning light on the
dash.

Yes.  And since there is no light on the custom dash I inherited with my
(TR6-vintage) Lotus Europa, I ignore the thing.  

No such thing to ignore on the old single-circuit TR4.

Phil Ethier