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Automatic transmission

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  • Automatic transmission

    The transmission in my 1963 Hawk gets hot and blows fluid out somewhere, can't see where it is coming from. It does it on hot days and mountain driving. I have serviced the transmission, cleaned the screen and filled it according to the service manual using Dexron Mercon III fluid. Any idea on why this is happening?

  • #2
    Sounds like it's not venting the pressure buildup that happens when you have pumps and whirring gears in an enclosed box. Also, servicing, are you servicing it by the manual?

    Sonny
    http://RacingStudebakers.com
    Sonny
    http://RacingStudebakers.com

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    • #3
      Some of the automatics are air cooled only. Usually the deflectors that are supposed to be there to help funnel air into and around the bellhousing have been discarded long ago. The Powershift and heavy duty Flightomatic should have cooling lines leading to the radiator. Maybe these have been removed as they were on my Hawk. My car also has a Ford trans substituting for the original. I was able to add the cooler lines by simply removing the plugs on the side of the transmission. Contact John Metzker, he is the transmission guru and join SDC and read the Turning Wheels 'Co-operator'. Good luck,
      Tim
      Tim K.
      \'64 R2 GT Hawk

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      • #4
        quote:Originally posted by Sonny

        Sounds like it's not venting the pressure buildup that happens when you have pumps and whirring gears in an enclosed box. Also, servicing, are you servicing it by the manual?

        Sonny
        http://RacingStudebakers.com
        Duh...... I just read my own post, of course you said that you serviced it by the book. Sorry 'bout that BJ.

        Sonny
        http://RacingStudebakers.com
        Sonny
        http://RacingStudebakers.com

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        • #5
          Thanks for your reply. I have written to John Metzker but have not yet received a reply. I got his name from Turning Wheels.
          Thanks again.
          BJ
          quote:Originally posted by GTtim

          Some of the automatics are air cooled only. Usually the deflectors that are supposed to be there to help funnel air into and around the bellhousing have been discarded long ago. The Powershift and heavy duty Flightomatic should have cooling lines leading to the radiator. Maybe these have been removed as they were on my Hawk. My car also has a Ford trans substituting for the original. I was able to add the cooler lines by simply removing the plugs on the side of the transmission. Contact John Metzker, he is the transmission guru and join SDC and read the Turning Wheels 'Co-operator'. Good luck,
          Tim

          Comment


          • #6
            Though I haven't had this happen on the Flightomatic, I have seen it on other automatics. It was caused by the transmission being overfull. The fluid got extremely hot in use and boiled out the bell housing vent during heat soak after being shut down. After the level was corrected, it went away.

            MarkC, 64 Y8
            Working in Spokane, WA

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