[DeTomaso] Pantera heating

Mon Jul 23 17:57:39 EDT 2018

Jack...
I'm No expert, (and we all know that!) LOL But I always wondered, instead of cutting and resoldering Why not just get a European type Cap? With as much stuff on the Pantera that comes from other Cars, there has to be a Cap that works?
Just thinking out loud.
Curt  

    On Monday, July 23, 2018 1:30 PM, Jack DeRyke via DeTomaso <detomaso at server.detomasolist.com> wrote:

   Fred, what often happens with unmodified expansion tanks is, the tanks
  were built for European rad caps which are a bit longer than any U.S.
  cap. So a brand new U.S rad cap will seal for a while, but the rubber
  seal in the cap rapidly ages & gets stiff. So it no longer seals as
  well. In addition, the contractor that built those tanks often did a
  rough, porous solder job on the bottom of the necks where they attach
  to the tank body, so they often don't seal  very well.
  One fix we've found over decades is to take the small expansion tank to
  a radiator shop & have the neck unsoldered, and a new US made tank neck
  carefully resoldered on. Then a maximum 16psi U.S-made cap will fit,
  seal and last. Cheap, easy fix if you're using a stock tank. Note- most
  radiators stock and aftermarket, of any materials, will hold 16-17 psi
  but higher rated racing caps can balloon the rad core if they develop
  full pressure. Stock cap was rated at 0.9 Bar- about 13+psi. Good luck-
  J DeRyke
  -----Original Message-----
  From: Fred Sweeney <fred at creekspeak.com>
  To: detomaso <detomaso at server.detomasolist.com>
  Sent: Mon, Jul 23, 2018 1:10 pm
  Subject: [DeTomaso] Pantera heating
  My car displays about 185 degrees on the gauge, but after I drive it
  for
  a while, it seeps out of the radiator cap closest to the engine.
  Background: I drove the car in 90 degrees weather but it was at a
  reasonable highway speed for about 40 minutes. Virtually no city stop
  and go. After things cooled down I drove for about 10 minutes and no
  trouble this time.
  I have the overflow tank next to it filled about 1/2 full. I measured
  the tank so not to overfill. It was filled while the engine is hot.
  I've
  read both versions of filling it. Think this is the right version.
  Other
  than that, the car runs fine. ANY IDEAS? Please email me because I'm
  really not good on computers. [1]fred at creekspeak.com
  Thanks in advance to all the Pantera gurus who have always helped me.
  Fred Sweeney
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References

  1. mailto:fred at creekspeak.com
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-------------- next part --------------
   Jack...
   I'm No expert, (and we all know that!) LOL But I always wondered,
   instead of cutting and resoldering Why not just get a European type
   Cap? With as much stuff on the Pantera that comes from other Cars,
   there has to be a Cap that works?
   Just thinking out loud.
   Curt
   On Monday, July 23, 2018 1:30 PM, Jack DeRyke via DeTomaso
   <detomaso at server.detomasolist.com> wrote:
     Fred, what often happens with unmodified expansion tanks is, the
   tanks
     were built for European rad caps which are a bit longer than any U.S.
     cap. So a brand new U.S rad cap will seal for a while, but the rubber
     seal in the cap rapidly ages & gets stiff. So it no longer seals as
     well. In addition, the contractor that built those tanks often did a
     rough, porous solder job on the bottom of the necks where they attach
     to the tank body, so they often don't seal  very well.
     One fix we've found over decades is to take the small expansion tank
   to
     a radiator shop & have the neck unsoldered, and a new US made tank
   neck
     carefully resoldered on. Then a maximum 16psi U.S-made cap will fit,
     seal and last. Cheap, easy fix if you're using a stock tank. Note-
   most
     radiators stock and aftermarket, of any materials, will hold 16-17
   psi
     but higher rated racing caps can balloon the rad core if they develop
     full pressure. Stock cap was rated at 0.9 Bar- about 13+psi. Good
   luck-
     J DeRyke
     -----Original Message-----
     From: Fred Sweeney <[1]fred at creekspeak.com>
     To: detomaso <[2]detomaso at server.detomasolist.com>
     Sent: Mon, Jul 23, 2018 1:10 pm
     Subject: [DeTomaso] Pantera heating
     My car displays about 185 degrees on the gauge, but after I drive it
     for
     a while, it seeps out of the radiator cap closest to the engine.
     Background: I drove the car in 90 degrees weather but it was at a
     reasonable highway speed for about 40 minutes. Virtually no city stop
     and go. After things cooled down I drove for about 10 minutes and no
     trouble this time.
     I have the overflow tank next to it filled about 1/2 full. I measured
     the tank so not to overfill. It was filled while the engine is hot.
     I've
     read both versions of filling it. Think this is the right version.
     Other
     than that, the car runs fine. ANY IDEAS? Please email me because I'm
     really not good on computers. [1][3]fred at creekspeak.com
     Thanks in advance to all the Pantera gurus who have always helped me.
     Fred Sweeney
     _______________________________________________
     Detomaso Email List is not managed by POCA
     Posted emails must not exceed 1.5 Megabytes
     DeTomaso mailing list
     [2][4]DeTomaso at server.detomasolist.com
     [3][5]http://server.detomasolist.com/mailman/listinfo/detomaso
     To manage your subscription (change email address, unsubscribe, etc.)
     use the links above.
     Members who post to this list grant license to the list to forward
   any
     message posted here to all past, current, or future members of the
     list. They also grant the list owner permission to maintain an
   archive
     or approve the archiving of list messages.
   References
     1. mailto:[6]fred at creekspeak.com
     2. mailto:[7]DeTomaso at server.detomasolist.com
     3. [8]http://server.detomasolist.com/mailman/listinfo/detomaso
   _______________________________________________
   Detomaso Email List is not managed by POCA
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