oil in fuel?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by javelinjeff, Sep 15, 2007.

  1. javelinjeff

    javelinjeff Medium Load Member

    621
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    Aug 30, 2007
    victorville,ca
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    getting dark fuel on a 470 detroit,checked injectors,replaced fuel pump.anyone had this one?
     
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  3. 24valve puller

    24valve puller Medium Load Member

    399
    89
    Sep 8, 2007
    N.E. Oh
    0
    are the o-rings good on the injectors, how many miles on the engine?
     
  4. javelinjeff

    javelinjeff Medium Load Member

    621
    185
    Aug 30, 2007
    victorville,ca
    0
    685k on the motor,shop did a diagnostic on injectors- checked out ok.fuel is not getting into oil,sign of bad o-rings or liners.claimed it was a bad check valve at the back of the head?? another shop did the fuel pump thinking oil was leaking through the seal.truck runs good-will bury the speedo no problem,just wondering has anyone had this exact same problem?
     
  5. javelinjeff

    javelinjeff Medium Load Member

    621
    185
    Aug 30, 2007
    victorville,ca
    0
    update, either it was the seal on the fuel pump or the clogged check valve on the back of the head. 400 gallons later the fuel is no longer dark.:biggrin_25525:
     
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