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Front crank seal leaking.

Discussion in 'Trucks [ Eighteen Wheelers ]' started by seabring, Jun 19, 2013.

  1. Jun 19, 2013 #1
    seabring

    seabring Road Train Member

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    C15 mxs acert front crank seal leaking a small amount of oil. What is involved in fixing this? Labour time , cost etc? Downside of letting it be for now? Can it cause big probs or just going to leak a bit?
     
    seabring, Jun 19, 2013
    seabring, Jun 19, 2013
    #1
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  3. Jun 19, 2013 #2
    Superhauler

    Superhauler TEACHER OF MEN

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    are you sure it's the crank seal? sometimes the o-ring on the crank sensor gets weak and oil will seep out and it will look like the crank seal is leaking.
     
    Superhauler, Jun 19, 2013
    Superhauler, Jun 19, 2013
    #2
    kw9's rock Thanks this.
  4. Jun 19, 2013 #3
    Superhauler

    Superhauler TEACHER OF MEN

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    a good mechanic can do it in half a day or less. depending on how easy it is to get to. on my w900 I have changed it with out removing the radiator. skinned knuckles and all, but doable.
     
    Superhauler, Jun 19, 2013
    Superhauler, Jun 19, 2013
    #3
    kw9's rock Thanks this.
  5. Jun 19, 2013 #4
    Cat sdp

    Cat sdp . .

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    Warning off topic.....kw9's may I ask what your plan for dealing with Cali next year is ??
     
    Cat sdp, Jun 19, 2013
    Cat sdp, Jun 19, 2013
    #4
  7. Jun 19, 2013 #5
    seabring

    seabring Road Train Member

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    Basically I won't be going into Cali with my truck. I am not going to retrofit a DPF filter or buy a newer truck. I don't have the money or desire to do either of those things.
     
    seabring, Jun 19, 2013
    seabring, Jun 19, 2013
    #5
    Cat sdp Thanks this.
  8. May 22, 2020 #6
    Pinkybuster

    Pinkybuster Bobtail Member

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    Feb 19, 2020
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    I just installed a new crank sensor on mine and it's now leaking oil from that. Brand new and o ring looks fine. Its tight but will show oil running down out of area now. Fresh in frame and all clean so i can definitely see that where its coming from. What do I need to do?
     
    Pinkybuster, May 22, 2020
    Pinkybuster, May 22, 2020
    #6
  9. May 22, 2020 #7
    AModelCat

    AModelCat Road Train Member

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    Remove sensor and check o-ring. Check sealing surface on the engine for damage.
     
    AModelCat, May 22, 2020
    AModelCat, May 22, 2020
    #7
  10. May 22, 2020 #8
    Superhauler

    Superhauler TEACHER OF MEN

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    Defective oring or defective sensor...(leaking through sensor case) or surface where oring seats is dirty or damaged.
     
    Superhauler, May 22, 2020
    Superhauler, May 22, 2020
    #8
  11. May 22, 2020 #9
    Pinkybuster

    Pinkybuster Bobtail Member

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    Seems to be slow leak around it. That's why I thought maybe it had a second o ring to seal it against the block
     
    Pinkybuster, May 22, 2020
    Pinkybuster, May 22, 2020
    #9
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