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Re: 1980-1985 eldo/seville cooling....need help, how to succesfully pull it off?

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  • GregTalbott
    or air pocket in system? I have a Pontiac GP that is notorious for holding an air bubble and many fords were trouble also. The Pontiac runs okay on the highway
    Message 1 of 11 , Jul 27, 2004
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      or air pocket in system? I have a Pontiac GP that is notorious for
      holding an air bubble and many fords were trouble also.
      The Pontiac runs okay on the highway but overheats at idle. The air
      bubble "symptom" appears as a steady gauge rise up to around 245
      degrees then rapid drop to 200 degrees.

      Greg Talbott


      --- In Cadillac_Performance_Association@yahoogroups.com, "Tom McKenna"
      <TRAVELER@N...> wrote:
      > Anybody think to double check the actual guage?????????????
      >
      > -------Original Message-------
      >
      > From: Cadillac_Performance_Association@yahoogroups.com
      > Date: 07/25/04 23:22:11
      > To: Cadillac_Performance_Association@yahoogroups.com
      > Subject: Re: [Cadillac_Performance_Association] Re: 1980-1985
      eldo/seville
      > cooling....need help, how to succesfully pull it off???
      >
      > ...have you checked the valve timing?
      >
      > On 25-Jul-04, mpascino_ny wrote:
      >
      > > Just an update.... I am still have trouble keeping cool........I have
    • RGermain
      air bubbles.... that reminds me.... I had an old 68 Dodge 440 that would over heat in the dead of winter. And that was with a new radiator, water pump, hoses
      Message 2 of 11 , Jul 27, 2004
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        air bubbles.... that reminds me....
         
        I had an old '68 Dodge 440 that would over heat in the dead of winter. And that was with a new radiator, water pump, hoses and heater core.
         
        I had an old mechanic friend suggest drilling two small holes into the thermostat. eighth inch or so.
         
        This allowed some coolant to bypass the thermostat. I cant say that I ever noticed if it took longer to warm or not after doing this. But it did the trick!

        GregTalbott <cadillacsgalore@...> wrote:
        or air pocket in system? I have a Pontiac GP that is notorious for
        holding an air bubble and many fords were trouble also.
        The Pontiac runs okay on the highway but overheats at idle. The air
        bubble "symptom" appears as a steady gauge rise up to around 245
        degrees then rapid drop to 200 degrees.

        Greg Talbott


        --- In Cadillac_Performance_Association@yahoogroups.com, "Tom McKenna"
        <TRAVELER@N...> wrote:
        > Anybody  think to double check the actual guage?????????????

        > -------Original Message-------

        > From: Cadillac_Performance_Association@yahoogroups.com
        > Date: 07/25/04 23:22:11
        > To: Cadillac_Performance_Association@yahoogroups.com
        > Subject: Re: [Cadillac_Performance_Association] Re: 1980-1985
        eldo/seville
        > cooling....need help, how to succesfully pull it off???

        >     ...have you checked the valve timing?

        > On 25-Jul-04, mpascino_ny wrote:

        > > Just an update.... I am still have trouble keeping cool........I have




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      • Michael Wish
        One way to help with air bubbles is to run straight propylene glycol as the coolant. It has better thermal properties than water and ethylene glycol. It is
        Message 3 of 11 , Jul 27, 2004
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          One way to help with air bubbles is to run straight propylene glycol as the coolant. It has better thermal properties than water and ethylene glycol. It is also nontoxic.
           
          If your coolant has a corrosion inhibitor in it, fouling can occur were there are air pockets inside the cooling passageways. Corrosion inhibitors tend to form sludge when the coolant is exposed to air.

          [Michael Wish] 
           
           -----Original Message-----
          From: GregTalbott [mailto:cadillacsgalore@...]
          Sent: Tuesday, July 27, 2004 5:45 PM
          To: Cadillac_Performance_Association@yahoogroups.com
          Subject: [Cadillac_Performance_Association] Re: 1980-1985 eldo/seville cooling....need help, how to succesfully pull it off?

          or air pocket in system? I have a Pontiac GP that is notorious for
          holding an air bubble and many fords were trouble also.
          The Pontiac runs okay on the highway but overheats at idle. The air
          bubble "symptom" appears as a steady gauge rise up to around 245
          degrees then rapid drop to 200 degrees.

          Greg Talbott


          --- In Cadillac_Performance_Association@yahoogroups.com, "Tom McKenna"
          <TRAVELER@N...> wrote:
          > Anybody  think to double check the actual guage?????????????

          > -------Original Message-------

          > From: Cadillac_Performance_Association@yahoogroups.com
          > Date: 07/25/04 23:22:11
          > To: Cadillac_Performance_Association@yahoogroups.com
          > Subject: Re: [Cadillac_Performance_Association] Re: 1980-1985
          eldo/seville
          > cooling....need help, how to succesfully pull it off???

          >     ...have you checked the valve timing?

          > On 25-Jul-04, mpascino_ny wrote:

          > > Just an update.... I am still have trouble keeping cool........I have


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