N14 Top End Knock

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by SpeedyGonzalez, Sep 3, 2019.

  1. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

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    I would buy straight from Cummins or a dealer(which ever is better priced)and go recon or brand new. @SmokinCAT knows a reputable shop that does good work. Hopefully he chimes in.
     
  2. swaan

    swaan Road Train Member

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    I think it was diesel control that smokin uses
     
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  3. swaan

    swaan Road Train Member

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  4. swaan

    swaan Road Train Member

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    Here you go. Your welcome
     
  5. SpeedyGonzalez

    SpeedyGonzalez Light Load Member

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    Thanks guys, Im going to buy a set from the dealer and send this set out for reman, keep a good set in stock for when the other trucks are due for injectors.
     
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  6. HopeOverMope

    HopeOverMope Road Train Member

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    PX , not RX though. Both are reman but PX is the better way from what I know. At least as far as Cummins genuine is concerned
     
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  7. SpeedyGonzalez

    SpeedyGonzalez Light Load Member

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    Is there a large risk of him continuing to drive for the next two days until he makes it to the shop? Last thing I need is a broken crank because of uneven combustion or that sort of thing lol.
    Also, how do you identify the type, as is PX and RX?
     
  8. HopeOverMope

    HopeOverMope Road Train Member

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    Well the PX, RX request is made while ordering parts. If you request injectors, chances are tgey’ll Supply RX. If you request PX, they’ll have to search a bit harder. PX/RX is part of the actual part number. Remanufactured, vs PX. Your basic reman is an RX part number. RXxxxxxx etc. if you’re aware and ask for a PX, just look at your box the injectors come in, check the part number, check for the PX prefix, the “PX” before the numerical part number.
     
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  9. SpeedyGonzalez

    SpeedyGonzalez Light Load Member

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    Thanks for all the help. Driver is about 100 miles out and I've got some shiny new PX remans in hand. I've got a couple of question about install, I was reading a thread here and it was recommended to clean the injector cups, how exactly do you do that, I'd assume that steel wool would damage it so would a nylon bottle brush work?
    Second question is how do you evacuate the fuel in the cylinder to keep it from hydrolocking?
    When I swapped 1 and 2 no fuel came out or very little due to the whole algea clogged system, but that issue is fixed now and I'm assuming that when I pull the first injector the cylinder is going to flood with fuel. I've been thinking of using a shopvac but I don't have a nozzle that small so id have to rig something up, what's the usual procedure for getting the diesel out of the cylinders?
    Lastly , do you grease the orings or just wet them with diesel on install?
     
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  10. HopeOverMope

    HopeOverMope Road Train Member

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    Here’s a video I did one setting the valves, injectors. Can’t help you much with the install as I have not done it before personally. This video is okay, I say the right stuff but it’s painfull to watch because I didn’t know what I was really doing.

    :/