Gearbox oil leak

Discussion in 'Mech Tech' started by Youngdub, Mar 30, 2019.

  1. Youngdub

    Youngdub Supporter

    75D62129-FCDD-4A70-B9B9-FE7F58A108D6.jpeg 49CBACF0-AE19-4E03-B2B4-EA8405DDEDE7.jpeg i have a slight leak in front of my nose cone which I expect I will have to address with the gearbox out at some point but not yet.
    It is not too bad and it is nice and clean oil too!
    From these pictures are there any clues that might suggest the cause given where the drops are on those two bolt heads
     
  2. Ozziedog

    Ozziedog Supporter

    It does look like one of those very rare leaks, that there may just be too much oil in there. Whatever you do, DON’T drain it until you’ve made sure that the filler is loosened. Maybe just take the filler out with the van on levelish ground and see how much oil is in there, two things, you can check if there’s way too much or you can top it up to counteract the leak until you gets around to sprucing it up a bit.

    Ozziedog,,,,,,,,,, looks the part don’t it, a nice oily leak :)
     
  3. Youngdub

    Youngdub Supporter

    From a quick scan of the forum I did suspect the nose come seal and I understand it is a gearbox out fix...
    Just done an engine oil change and whilst under there I took the filler plug for the gearbox out and managed to pump in about 2-250ml of oil.
    I have never checked the gearbox oil in the year I have had the bus so presume that worst case it is not yet losing much.
    Thanks
     
  4. Likely just the nosecone seal weeping. Gearbox out to fix, but it’s not dramatic. There’s not much oil up there, so you’ll only lose some drips. Cheap underseal!
     
    Purple likes this.
  5. mikedjames

    mikedjames Supporter

    The nose cone seal cant be changed with the gearbox in. I tried once. And regretted it as I chewed things when I mis hit.

    You can take the engine out and then lower the gearbox onto supports without disconnecting the propshafts.

    Then it can be worth draining the gearbox oil, removing the nose cone and checking the donut on the end of the hockey stick lever.
    You might as well. Its cheap and can make a lot of difference to gear changes.
     

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