New slave range leaking

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tktexas, May 21, 2017.

  1. tktexas

    tktexas Light Load Member

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    Jun 14, 2014
    0
    Just put on a new range selector slave and it's leaking air. I put the new o ring in and it's still leaking
     
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  3. AModelCat

    AModelCat Road Train Member

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    Jul 7, 2015
    Canuckistan
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    On the transmission itself?

    I just resealed both my range and deep reduction pistons on my 15 speed. I recall there were a couple o-rings. One big one around the piston, a smaller one down further around the piston rod and possibly a 3rd one one that seals the piston to the rod. I'd also check to see that the cylinder bore or rod isn't scored or scuffed up either.
     
  4. tktexas

    tktexas Light Load Member

    68
    4
    Jun 14, 2014
    0
    Thanks, I fixed the leak but still have a scratch from lo to high.
     
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