Torque converter Trouble

Early A-Body Discussions

  1. hippy 60

    hippy 60 Well-Known Member

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    Will a 63 tq. work on a 65 model plymouth Valiant,It's a 904 i can get it to go back but it still likes about a 1\2 goin back enough are the splines different and i have another one and does the same way,Has anyone had this problem,Thanks for any help I have worked on it for 2days now......
     
  2. lilfontleroy

    lilfontleroy annoyinglilLeRoy FABO Gold Member

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    I feel for you doesn't sound like a lot of fun going on there. 170, 225 or 273? if youre going same to same it should go. not that it matters much but is it a new TC? if so are you positive you have the right unit? funny thing with TC's = they will fight you and fight you and then suddenly it will just punch in there - my last one was on a 360 with a 904 it took two of us nearly a half a case of beer to get that b$%^ch to go! maybe posting a pic or two will help us help you.......
    I'm no expert but if nothing else maybe by me answering someone else will chime in. Good luck.
     
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    • toolmanmike

      toolmanmike FABO Staff Staff Member FABO Gold Member

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      Agreed! The last one fought me 15 min of jiggling, turning, and pushing. They can be a booger sometimes.
       
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      • thesiren74

        thesiren74 Well-Known Member

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        Check the slines very carefully i had just a tiny burr on one and it would not go in.
         
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        • thesiren74

          thesiren74 Well-Known Member

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          Splines! Damn phone! Lol
           
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          • AJ/FormS

            AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s FABO Gold Member

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            Huh, I stand the sweetheart on her tail, wedged against the bench and gently lower the TC into the hole. When she stops, I give her a spin and ka-thunk down she drops. I can't recall ever spending more than a minute on this step.
            Laying on my back in the driveway swapping one out is another story.
             
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            • pishta

              pishta I know I'm right....

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              sometimes turning the tangs turns the pump tangs too so they never mesh. If you have the liberty of standing the thing on its tail, I dont see a problem. Of course I was the guy who didn't even see the lower splines in the bottom of the converter due to fluid still in there and I was looking for a non existent xx spline convertor...We wrestled with a Toyota transverse trans trying to get the convertor to line up and we took a break. Came back and the thing had fallen into place on its own. Strange.....
               
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              • hippy 60

                hippy 60 Well-Known Member

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                The torque converter is from a 63 and i was puttin it in a 65 model trans. both are factory i was changing mine fron a \6 to a 273 with a 66 273.....LOL All i need is something from a 64 now.....LOL
                 
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                • oldkimmer

                  oldkimmer FABO Gold Member FABO Gold Member

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                  I have repeated this time and time again and no body seems to listen or follow my advice. So once again. Look in the pump and u will see the two tangs. Turn them to the 12 and 6 o’clock positions with a small screw driver. What this does is Center the pump so the converter can slip right in. The pump gears are on an eccentric so if any other position u have great difficulty installing the converter. There is a trick for the flexplate to converter match up also. There is a tiny hole about an eight inch just below the bolt circle where the flexplate bolts to the crank. Line up the drain plug with it then ur converter will bolt right up or maybe I’m wrong there and it is opposite the drain plug. Kim
                   
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                  • hippy 60

                    hippy 60 Well-Known Member

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                    Thanks i will try that to day and see i have done everything else I have twisted and turned to i thought my arms were goin to fall off.Never have worked with a 904 alway's been a 727
                     
                  • hippy 60

                    hippy 60 Well-Known Member

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                    I tried that and it likes about an inch going down i even tried 3 different TC and they all was doin the same thing i don't know what wrong with it , Do you think it something in the transmission i just had it rebuilt and the guy that done it has been building trans. for me over 40yrs. this is the first for me
                     
                  • AJ/FormS

                    AJ/FormS 68 B'cuda fb, Form S clone ... 367/A833/3.55s FABO Gold Member

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                    Maybe she already hit bottom?
                    When she drops down, the mounting lugs only need to be ~1/4 inch below the face of the bellhouse, maybe even a lil less. The pump is only about 1/2" wide, but when the snout drops in it goes to near the end of the machined slots, which is quite a ways Maybe 5/8"(guessing). So the TC will drop from ~3/8 above the face to ~1/4 below the face.
                    I don't suppose the Trans is a loc-up, with the un-machined pilot on the end of it? This trans needs a matching loc-up specific TC.
                    A standard 904 has splines machined right to the end, and needs a matching TC.
                     
                  • pishta

                    pishta I know I'm right....

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                    count the splines......If your looking into the converter, look in from the side so there is no fluid hiding the inner splines, youll see 2 sets (27 and 27?) . Then count the splines on the transmission input shaft. Also your early convertor shoulds have a 1.550 register on flexplate side. These are both 27 spline but the first is a later big register Hughes 27-20 and the 2nd is a early stock 1.550 register. 20190313_170911.jpg 20190313_171652 (1).jpg
                     
                  • Dconcb

                    Dconcb New Member

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                    Our rebuilt converters use a narrow slot hub, makes them a bit more difficult to install sometimes.
                    Try this:
                    Pump drive “ears” at 12 and 6 o’clock
                    Thread two bolts in loosely to help as handles if needed.
                    Hub slots at 12 and 6 o’clock.
                    Slide converter in till it hits, now lift converter up a bit say 1/4” or so, push it in with authority jiggling up and down gently.
                    Often the weight of the input causes the shaft to point upward slightly and it won’t align with the impeller splines, hence the slight lift.
                     
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