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Cummins sm cam leaking plastic plugs, pass side of above oil pan

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by 1970Kenworth, Dec 14, 2018.

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  1. Dec 14, 2018 #1
    1970Kenworth

    1970Kenworth Bobtail Member

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    cummins small cam I have a oil leak on little plugs in the passage side of block what are they ? How to stop leaking ?
     
    1970Kenworth, Dec 14, 2018
    1970Kenworth, Dec 14, 2018
    #1
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  3. Dec 14, 2018 #2
    BoxCarKidd

    BoxCarKidd Road Train Member

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    Picture? Piston cooling nozzles? Replace then.
     
    BoxCarKidd, Dec 14, 2018
    BoxCarKidd, Dec 14, 2018
    #2
    Diesel Dave Thanks this.
  4. Dec 14, 2018 #3
    1970Kenworth

    1970Kenworth Bobtail Member

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    Nov 30, 2018
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    I’ll get a picture tomorrow. It could be piston cooler nozzles are they able to be replace from the out side of the block.

    The part looks like a 8 Figure 8 turned sideways with a bolt on one side and just a round part flat on the other all one piece
     
    1970Kenworth, Dec 14, 2018
    1970Kenworth, Dec 14, 2018
    #3
  5. Dec 14, 2018 #4
    1970Kenworth

    1970Kenworth Bobtail Member

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    Thank you I looks it up the part is the piston cooling nozzle I’ll order 2 up cause only two are leaking and I guess just unbolt and push a new one in.

    Thank you.
     
    1970Kenworth, Dec 14, 2018
    1970Kenworth, Dec 14, 2018
    #4
  7. Dec 14, 2018 #5
    Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    Cheap insurance.... replace all of them.
     
    Diesel Dave, Dec 14, 2018
    Diesel Dave, Dec 14, 2018
    #5
    RET423 Thanks this.
  8. Dec 14, 2018 #6
    Dino soar

    Dino soar Road Train Member

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    Yes change them all. They're quite inexpensive and can cause you engine problems.

    Cummins tells you to use vegetable oil on the O-rings. They may be very tight going in. Carefully tap them in.
     
    Dino soar, Dec 14, 2018
    Dino soar, Dec 14, 2018
    #6
  9. Dec 14, 2018 #7
    haycarter

    haycarter Road Train Member

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    If you haven't already done so. Go here & create an account (It's Free) Register your ESN. You will have access to Parts & service manuals ect....


    Cummins QuickServe Online
     
    haycarter, Dec 14, 2018
    haycarter, Dec 14, 2018
    #7
  10. Dec 14, 2018 #8
    1970Kenworth

    1970Kenworth Bobtail Member

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    I would guess there is 6 piston cooler nozzles 3 on each side ? Ok I’ll replace all .
    I forgot I signed up for that other website with my ESN but I didn’t see any Manuals for the older small cams
     
    1970Kenworth, Dec 14, 2018
    1970Kenworth, Dec 14, 2018
    #8
  11. Dec 14, 2018 #9
    Dino soar

    Dino soar Road Train Member

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    There are six piston cooling nozzles, one for each cylinder.

    I do not know about the small cam Cummins, but on the big cam they are all lined up on the passenger side.
     
    Dino soar, Dec 14, 2018
    Dino soar, Dec 14, 2018
    #9
  12. Dec 14, 2018 #10
    HopeOverMope

    HopeOverMope Road Train Member

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    Here’s a video I put up the other day for the n14 cooling nozzles, it should be pretty similar? The video is not that good but at least a visual

     
    HopeOverMope, Dec 14, 2018
    HopeOverMope, Dec 14, 2018
    #10
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