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DG250M Rebuild

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  • Transmission / Overdrive: DG250M Rebuild

    Hi All
    My transmission works ok, but constantly leaks.
    So i am replacing seals, gaskets and bearings.
    Click image for larger version

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    Everything cleaned and ready for delivery of new seals etc.
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    Apart from the manual inspection notes, can anyone add any recommendations?
    Cheers
    Stu



  • #2
    Be careful, keep everything clean, pay attention to adjustments, go easy on break in and Good Luck.
    Gary L.
    Wappinger, NY

    SDC member since 1968
    Studebaker enthusiast much longer

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    • #3
      Thanks Gary!
      The manual calls for a light smear of petroleum jelly on gasket surfaces. Is there a better "modern" lubricant, or should i stay "old school"?
      Cheers
      Stu

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      • #4
        be sure to strip the mainshaft all the way and clean the passages in it.

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        • #5
          Thank you mapman, i think i need another workbench!

          Comment


          • #6
            Make sure you have the direct clutch oil transfer tube in the end of the input shaft when you put the torque converter back in. Also since the torque converter is so heavy, bell housing run out and dial in is especially critical. Don't rev it with no load or the clutch has been known to engage in the converter violently.
            Bez Auto Alchemy
            573-318-8948
            http://bezautoalchemy.com


            "Don't believe every internet quote" Abe Lincoln

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            • #7
              Thanks for the tips Brad!
              So if i test run the engine i should fit a flywheel on instead of the torque converter and transmission ?
              I have just finished making an engine test stand!
              Cheers Stu

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              • #8
                WOW, that looks good!

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                • #9
                  As Brad said, DO NOT rev the engine to anything above about 2500 rpm with the transmission in Neutral or Park.
                  Gary L.
                  Wappinger, NY

                  SDC member since 1968
                  Studebaker enthusiast much longer

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                  • #10
                    Thanks for the heads up everyone, ill let you know how it goes!
                    Cheers
                    Stu

                    Comment


                    • #11
                      One source for leaking in the DG transmissions was the oilpan.
                      I am not sure if it was corrected by the time that the DG250 came out in 1955 but the flange on the oilpan was reinforced .Studebaker sold a kit which included a reinforced pan and the bolts which probably were a little longer.
                      I don't have the part number for this kit here at the house but I believe that SI still has a stock of these. If not, I can supply these but I am not able to go to the warehouse for awhile due to health problems.

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                      • #12
                        Thanks Robert
                        I think there was a version 2 in 1955? I have the reinforced pan as it has ribbed plates between the bolt holes.
                        I have also discovered i have flat separator plates (earlier had dished) and an added spacer plate in the multiple disc clutch drum, the service manual only describes the dished plates.
                        I am learning a lot
                        Cheers
                        ​​​​​​​Stu

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