[DeTomaso] Brake Pressure Differential Valve

[Julian Kift]

It may be a silly question, but the brake warning switch is original correct? That is a metric thread unit so just checking you don't have a thread mismatch issue.

If the unit is leaking internally across the seals you have inter connectivity and possibly pressure equalization between your front and rear brake circuits which isn't ideal.

Did you call other vendors like Larry Stock for a replacement unit?

Julian

________________________________
From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of Joe Jaffoni <427390 at gmail.com>
Sent: Tuesday, January 15, 2019 8:01 AM
To: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Brake Pressure Differential Valve

I had a nice call from Larry Finch last night and one thought we had was to
simply plug the port where the  brown brake pressure differential switch is
screwed in.  I'd also like to consider the solution that GoNancy and Chuck
Engles are using by eliminating the shuttle valve altogether and using a
micro switch on the brake pedal.  Would it be possible to send me pics of
your "plumbing" and the switch you added? Much appreciated - Joe

---------- Forwarded message ---------
From: Joe Jaffoni <427390 at gmail.com>
Date: Mon, Jan 14, 2019 at 5:43 PM
Subject: Brake Pressure Differential Valve
To: <detomaso at server.detomasolist.com>


I am getting close to the first post-resto drive and tried to bleed the
brakes this weekend but brake fluid is leaking out (heavily) from the
center of the port where the brown brake pressure differential switch is
screwed in.  I previously had the valve rebuilt by Muscle Car Research in
Virginia which sells the rebuild kit...



>From what I’ve read, there should be no fluid at this "switch" port so the
leak indicates that the internal o-rings are allowing brake fluid into that
center port.  I don’t want to try to rebuild it again.


Does anyone know where to get another one? Preferably new? Wilkinson lists
it (https://panterapartsusa.myshopify.com/products/01316A) but I tried
Steve earlier and he is on vacation and I am trying to get the replacement
so I can spend the three day weekend replacing it and cleaning up the brake
fluid on the new carpet in the front trunk - Thanks
-------------- next part --------------
   It may be a silly question, but the brake warning switch is original
   correct? That is a metric thread unit so just checking you don't have a
   thread mismatch issue.

   If the unit is leaking internally across the seals you have inter
   connectivity and possibly pressure equalization between your front and
   rear brake circuits which isn't ideal.

   Did you call other vendors like Larry Stock for a replacement unit?

   Julian
     __________________________________________________________________

   From: DeTomaso <detomaso-bounces at server.detomasolist.com> on behalf of
   Joe Jaffoni <427390 at gmail.com>
   Sent: Tuesday, January 15, 2019 8:01 AM
   To: detomaso at server.detomasolist.com
   Subject: Re: [DeTomaso] Brake Pressure Differential Valve

   I had a nice call from Larry Finch last night and one thought we had
   was to
   simply plug the port where the  brown brake pressure differential
   switch is
   screwed in.  I'd also like to consider the solution that GoNancy and
   Chuck
   Engles are using by eliminating the shuttle valve altogether and using
   a
   micro switch on the brake pedal.  Would it be possible to send me pics
   of
   your "plumbing" and the switch you added? Much appreciated - Joe
   ---------- Forwarded message ---------
   From: Joe Jaffoni <427390 at gmail.com>
   Date: Mon, Jan 14, 2019 at 5:43 PM
   Subject: Brake Pressure Differential Valve
   To: <detomaso at server.detomasolist.com>
   I am getting close to the first post-resto drive and tried to bleed the
   brakes this weekend but brake fluid is leaking out (heavily) from the
   center of the port where the brown brake pressure differential switch
   is
   screwed in.  I previously had the valve rebuilt by Muscle Car Research
   in
   Virginia which sells the rebuild kit...
   From what I've read, there should be no fluid at this "switch" port so
   the
   leak indicates that the internal o-rings are allowing brake fluid into
   that
   center port.  I don't want to try to rebuild it again.
   Does anyone know where to get another one? Preferably new? Wilkinson
   lists
   it ([1]https://panterapartsusa.myshopify.com/products/01316A) but I
   tried
   Steve earlier and he is on vacation and I am trying to get the
   replacement
   so I can spend the three day weekend replacing it and cleaning up the
   brake
   fluid on the new carpet in the front trunk - Thanks

References

   1. https://panterapartsusa.myshopify.com/products/01316A