430 - Gearbox Seal Leak | FerrariChat
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430 Gearbox Seal Leak

Discussion in '360/430' started by kromberg, Dec 31, 2020.

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  1. kromberg

    kromberg Rookie

    Oct 19, 2019
    20
    Full Name:
    Keith Romberg
    #1 kromberg, Dec 31, 2020
    I have a 2007 coupe here. I was going to take her out for a little spin today and I notice a pool of fluid at the back when I was taking off the car cover. After checking things out a bit, I took off the rear defuser to investigate some more. After looking around a bit I found the source of it. Looks like the seal on the gearbox is leaking. All in all I am guessing there is about 1/2 of gear oil that came out. How common is it for the seal to go out? Anyone have a guess on what the damage is going to be to get the seal replaced?


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  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,955
    Central NJ
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    Dominick
    #2 flash32, Dec 31, 2020
    Can it be the banjo nut / fitting on oil cooler line ?
     
  3. kromberg

    kromberg Rookie

    Oct 19, 2019
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    Keith Romberg
    #3 kromberg, Dec 31, 2020
    Hmmm.... let me check that. The main thing I noticed was gear oil on the two seems of the metal piece the lines/banjo connects to before my heart sank.
     
  4. armedferret

    armedferret Formula 3

    Mar 24, 2018
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    #4 armedferret, Jan 1, 2021
    Rule #1 with a leak, trace upward. In your second photo the fluid appears to go juuuust up to the banjo fitting. Looks like there may be a tiny ooze from the side of the fitting closest to the gearbox.

    New crush washers and re-torque may be all that's needed to stop it. Fingers crossed.


    Quick diagnose would be to hit the dirty portions with some all-purpose cleaner (if you use simplegreen don't let it sit, have water handy to flush it off thoroughly--simple green and aluminum are disagreeable when left to sit for extended time) until it's squeaky clean, leave the undertray/diffuser off, and fire up the car and let it idle. See if you can catch it actively leaking.
     
  5. 24000rpm

    24000rpm F1 Rookie

    Aug 31, 2012
    4,653
    China and California
    #5 24000rpm, Jan 1, 2021
    what seal? I don't see any seal in the pic...????
    The 2 photographs are insufficient to determine the source of the leak.
     
  6. AandSC

    AandSC Formula Junior
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    Dec 12, 2016
    959
    Jax, FL
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    Allen
    #6 AandSC, Jan 1, 2021
    The crush gaskets on the banjo fitting. Good chance that’s the culprit. I had a leak on my F1 actuator that was a crush gasket. Easy fix.
     
  7. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Sep 1, 2013
    1,762
    Western Mass
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    Raimondo
    #7 360+Volt=Prius, Jan 2, 2021
    1- are you certain it’s gear oil. No assumptions about your abilities. but gear oil should have a very specific odor.

    2- have you or anyone done anything to the car recently eg. A service or add any oil?


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  8. kromberg

    kromberg Rookie

    Oct 19, 2019
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    Keith Romberg
    #8 kromberg, Jan 6, 2021
    After some more investigation and analysis, the leak is definitely coming from the plastic transmission filter. Looks like the oil/stain from the banjo fitting was sometime in the past before I bought the car. Besides www.ricambiamerica.com or www.scuderiacarparts.com does anyone know of a good source for parts? The shipping for scuderiacarparts is a killer.
     
  9. armedferret

    armedferret Formula 3

    Mar 24, 2018
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    #9 armedferret, Jan 6, 2021
    Have you checked eueospares.co.uk yet? I make no statements about comparison vs the other two but it's another option that exists.
     
  10. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,955
    Central NJ
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    Dominick
    #10 flash32, Jan 6, 2021
    Isn't just o ring .. if so how much could it be overpriced by your local ferrari dealer

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  11. kromberg

    kromberg Rookie

    Oct 19, 2019
    20
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    Keith Romberg
    #11 kromberg, Jan 6, 2021
    I was going to pick up a couple of oil filters, crush washers, and a couple other things while I was at it. I need my first born son and a second mortgage to buy the items at my local Ferrari stealership.
     
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  12. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,426
    Santa Clarita, CA
    #12 Extreme1, Jan 6, 2021
    When I changed my gear oil, I changed the filter too. It was $85 for the filter and I think it came with an O-ring. The filter had some crud on it, yours probably will too. Just change out the whole filter and start fresh.

    I got mine from Ricambi.


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