Cat c15 MBN

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by anthonyar4, Jan 12, 2021.

  1. lester

    lester Midwest's #1 Feed Hauler

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    So what should fuel pressure read when blocking the return line? Obviously higher, but like how much?
     
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  3. Superhauler

    Superhauler TEACHER OF MEN

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    Not sure spaurland and pushbroom. Can answer that. It will be as high as the relief valve in trans pump is set at. Cant get to my book right now.. Anything over 120 lbs your changing eroding o-rings on injectors.
     
  4. anthonyar4

    anthonyar4 Medium Load Member

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    How do I tell which injector is bad when doing that?
     
  5. devedo

    devedo Light Load Member

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    heres the pump test & injector cutout test info
     

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