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Transmission Leak - help

Discussion in '360/430' started by rotaryrocket7, Apr 6, 2025.

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  1. rotaryrocket7

    rotaryrocket7 Formula Junior

    Dec 7, 2011
    625
    Eden Prairie, MN
    Full Name:
    Matt
    #1 rotaryrocket7, Apr 6, 2025
    I have a small leak at the rear of the transmission between the rear sealing plate and the body of the transmission. There's a mating section between the shafts and the rear plate that I can;t seem to figure out how to get off the car to apply sealant to. See the pics - I think on the non main shaft there's a c-clip that holds things together, but I cannot for the life of me get it off.

    Anyone with experience want to give me a hint?


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  2. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,343
    Frederick, Maryland
    Full Name:
    Brian Brown
    #2 Motob, Apr 6, 2025
    The bearings stay in the intermediate plate. You pull the plate off of the transmissions shafts with both bearings in place. The puller threads into the bolt holes for the layshaft bearing retaining plate and pushes on the layshaft to remove the intermediate plate. Do you not have the 360 gearbox repair manual?
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  3. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,343
    Frederick, Maryland
    Full Name:
    Brian Brown
    #3 Motob, Apr 6, 2025
    When I am repairing a 360 transmission, I disassemble the transmission opposite from what the factory repair manual says, since I don't have the factory tools. I leave the mainshaft/gears, layshaft/gears and all of the shiftshafts in place on the intermediate plate and pull them out from the gearbox housing as a unit.


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  4. rotaryrocket7

    rotaryrocket7 Formula Junior

    Dec 7, 2011
    625
    Eden Prairie, MN
    Full Name:
    Matt
    #4 rotaryrocket7, Apr 6, 2025
    Super helpful, thank you!

    I don’t have the repair manual for the transmission…I really don’t want to pull the transmission from the car just to seal that intermediate plate! If I get that puller seems like I should be able to get the plate off and sealed, sound right?

    again, thank you for taking the time to respond, love this place
     
  5. Motob

    Motob Formula 3
    Professional Ferrari Technician

    Nov 11, 2003
    2,343
    Frederick, Maryland
    Full Name:
    Brian Brown
    #5 Motob, Apr 9, 2025
    Yes, if you can duplicate the action of this puller, then you should be able to get the plate off and resealed.
     
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