Meritor transmission leaking from back box

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by henboy1, Jul 4, 2020.

  1. henboy1

    henboy1 Medium Load Member

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    I am not ready to have them drop the transmission to fix a leaking back box . Can anyone recommend an additive to slow this leaking transmission? . Meritor 10 speed in a 60 series detroit
     
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  3. Goodysnap

    Goodysnap Road Train Member

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    No additive will fix the leak. Snake oils that claim to do so will be temporary.

    Keep it full with the correct lube and fix the leak as time allows.
     
    pushbroom Thanks this.
  4. henboy1

    henboy1 Medium Load Member

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    What about the engine that was leaking? Lucas stop leak fixed it ......rear main seal , rear and front cover seal , it fixed all on both trucks . Sit back and watch , I will find one for a transmission leak .chasing leaks on a detroit 60 series will put an owner operator out of business
     
  5. Goodysnap

    Goodysnap Road Train Member

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    Why are you asking for recommendations if you already have a magic potion in your pocket that fixes trucks? Theres a ton on this in the archives and everyone here knows my stance as stated above. Happy pouring.......
     
    AModelCat, pushbroom and spsauerland Thank this.
  6. haycarter

    haycarter Road Train Member

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    You need to Check that Gearbox Breather is not Blocked, as this can cause It to Leak..
     
    spsauerland Thanks this.
  7. henboy1

    henboy1 Medium Load Member

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    How and where is it located ?
     
  8. henboy1

    henboy1 Medium Load Member

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    Ok , I looked online and found the breather location . It's on the top cover . The leak is by the drain plug and how and why would a breather cause a leak ?
     
  9. spsauerland

    spsauerland Road Train Member

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    If vent isn't relieving case pressure, internal pressure will increase and cause oil to be forced out of the weakest link.
     
    Hulld, lwlevens, haycarter and 2 others Thank this.
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