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  • Transmission fun!

    Hi all 6'rs, need a little guidance here with my transmission woes.
    I just reinstalled my motor/trans combo after doing a bti of engine bay work.
    I had removed them as a unit.
    When I put it back in and bled the clutch system I could not get the gear selector to move other than I think it's in neutral.
    After cluing to the fact that the clutch slave cylinder has been shimmed with huge spacers to move it to the rear of the vehicle I decided to pull the transmission to check the fork.
    Which of course had a horrible weld job done on it, it was super out of alignment hence the spacers on the slave cylinder.
    I cut it out and will get a replacement shortly.
    Now while I have it on the bench I tried to get it to shift and I can't get it to move into any gear.
    I've never had to repair a transmission and don't know where to start diagnosing things.
    Should I pull the top cover off and make sure the gear selector mechanism moves freely then?

    Any pointers would be greatly appreciated.

    And of course I am in a hurry to get this thing rolling again as I am losing my shop space aagh!





  • #2
    I think your spacers are on the wrong side. Really you shouldn’t need spacers.

    As far as the gearbox not wanting to shift. Have you taken anything apart? Have the top cover off? Gearshift lever off?
    So much rust, so little time

    64 TR4 Overdrive Surrey
    67 GT6 Mk1
    68 TR250 Soon to have Overdrive & Surrey
    71 TR6 Hardtop Soon to have OD
    81 TR8 Injected Automatic...the LAST Automatic

    Comment


    • #3
      I removed the spacers and the clutch shaft/fork (to be replaced).
      I pulled the gear shift lever off when I removed the engine/trans from the car and have since put it back on.
      Top cover is tomorrow's project.
      Just trying to get an idea of what to look for before I start pulling things apart

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      • #4
        Wondering if the selectors got misaligned when you had the shifter out? If you didn’t pull the top cover, the gears should be able to be moved. Wonder if the anti rattle plunger got wedged somewhere it shouldn’t have?
        So much rust, so little time

        64 TR4 Overdrive Surrey
        67 GT6 Mk1
        68 TR250 Soon to have Overdrive & Surrey
        71 TR6 Hardtop Soon to have OD
        81 TR8 Injected Automatic...the LAST Automatic

        Comment


        • #5
          doh it never occurred to me that I can just take out the lever and try manually moving the selectors. I'll have a look for the anti rattle as I don't recall it being in there.

          Comment


          • #6
            Just be careful that you don’t move gears around when/if you pull the top cover. If in neutral, I’m assuming the mainshaft will turn easily?
            So much rust, so little time

            64 TR4 Overdrive Surrey
            67 GT6 Mk1
            68 TR250 Soon to have Overdrive & Surrey
            71 TR6 Hardtop Soon to have OD
            81 TR8 Injected Automatic...the LAST Automatic

            Comment


            • #7
              AAHH!! It was so simple. used a screw driver to move the 1/2 selector and now everything works perfect!
              Obviously I was overthinking this problem.
              Thank you all.
              Last edited by Brian Pahl; 01-24-2021, 11:27 PM.

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              • #8
                Cheap fix!
                So much rust, so little time

                64 TR4 Overdrive Surrey
                67 GT6 Mk1
                68 TR250 Soon to have Overdrive & Surrey
                71 TR6 Hardtop Soon to have OD
                81 TR8 Injected Automatic...the LAST Automatic

                Comment


                • #9
                  Glad this worked out - reading along thinking - dang - don't pull that top cover. I never did, but heard stories of that stuff not lining up trying to get that cover back on. So, while that box is out, I remind everyone to inspect the vent hole in the top cover - front, left. Tiny. It should be clear. Run a paper clip end or something in there - just make sure its not clogged, or worse, even filled in. If so, tiny drill bit, with fingers, and dig that stuff out.

                  vent hole was part of the engineers solution to internal pressure. almost forgotten, and we, 6pack, found this a few years back with a call to TRF tech line.

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                  • #10
                    eek, there's a vent hole? *rushes out to check

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                    • #11
                      Originally posted by Brian Pahl View Post
                      eek, there's a vent hole? *rushes out to check
                      I found out about the vent hole when standing the gear box on the (bell housing) end. Gear oil seeped out! I plugged it with a golf tee and proceeded to replace the O-rings then forgot to remove it. When trying to shift gears while still on the bench, with a screwdriver, it was more than difficult until I removed the plug.

                      Dick

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