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Thread: Oil leak in tranny

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    Oil leak in tranny

    I have a 1960 TR3A, and the o rings on the shifter shafts have failed. Just how difficult is this repair, what is tricky.


    LeT

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    Jedi Trainee Graham H's Avatar
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    Re: Oil leak in tranny

    It's quite easy, just follow the workshop manual instructions, the balls retaining the shifter shafts will tend to roll out but a screw driver down the shaft will soon push them back in. The main thing you need to do is replace the O rings with quad rings QR112 I.D 1/2 inch O.D 11/16 C.S 3/32 they will fix the oil leak. You may find the locking bolts for the shifter folks may snap when you unscrew them so you will have to carefully drill them out and fit new ones, all good fun.

    Graham
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    Obi Wan Sarastro's Avatar
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    Re: Oil leak in tranny

    The o-rings sold for that application are really not the right size; they don't have enough compression to create a good seal. You might want to skulk around the internet a bit to find something that's sized better. One option I've hear of is a teflon backup ring, available from McMaster-Carr, part no. 9560K53, which you can put under the standard o-ring.
    Steve Maas
    1966 Triumph TR4A, undergoing restoration: http://www.nonlintec.com/tr4a
    1952 MG TD, restoration completed 2014, sold 2016: http://www.nonlintec.com/mgtd
    1960 Austin-Healey "Bugeye" Sprite, sold 2010: http://www.nonlintec.com/sprite
    1967 Porsche 912: http://www.nonlintec.com/porsche

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    Jedi Trainee Graham H's Avatar
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    Re: Oil leak in tranny

    That's why the quad rings work and the O rings don't.

    Graham
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    Re: Oil leak in tranny

    interesting

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