DT466 Head Bolts.

Discussion in 'Everything Big Diesel Powered' started by Kevin 007, Jan 24, 2017.

  1. Kevin 007

    Kevin 007 Full-floater

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    Time for liner orings in one of my dt466's (1987 210hp model). The head has never been off before. Question is, can I re-use the head bolts or must they be replaced? I'm having a hard time finding this particular info.
    Also, do the head bolts on a 466 require re-torqueing after a while? I do practice re-torqueing head bolts on NTC cummins engines and IH idi's just as a 'midlife" service thing and they almost always take another 1/2-3/4 turn to achieve the torque spec. Then they seem to hold for the remainder of the engines life with no head gasket issues. I'm wanting to practice this on a 466 also as a preventative measure. Anyone have thoughts on that?
     
  2. Dieselcrawler

    Dieselcrawler i pooped today! Staff Member

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    Yes the bolts need to be replaced. They are a TTY bolt. They come in the head gasket kit from IH.

    As for a retorque, not required.
     
  3. Kevin 007

    Kevin 007 Full-floater

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    Ok thanks!
     
  4. Kevin 007

    Kevin 007 Full-floater

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    Does anyone know if the heads of the 466 engines used in the TD-15 dozers, are compatible with the on highway vehicle 466 engines? Reason I ask is because, I have a fresh 466 head, new guides, valves, seats, seals, magnafluzed; off of a dozer, would like to put that on my 1988 S1900 466 instead of sending the old head off and waiting ages for it to be re-done.
    Are there any differences that would not allow me to use that head on my S1900?
     
  5. Dieselcrawler

    Dieselcrawler i pooped today! Staff Member

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    To my knowledge if it's from the same generation engine it should be the same.
     
  6. Kevin 007

    Kevin 007 Full-floater

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    Thanks.

    And one more question about this build. Are the rod bolts requiring a "stretch" beyond their 130lbs torque spec? If so, are there any other fasteners that require a stretch?
     

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