3406C Engine Overhaul

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Bsmith85, Aug 25, 2018.

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  1. Aug 25, 2018 #21
    spsauerland

    spsauerland Road Train Member

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    What is your engine S/N. Might be able to tell you what it originally had.
     
    spsauerland, Aug 25, 2018
    spsauerland, Aug 25, 2018
    #21
    Oxbow and SAR Thank this.
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  3. Aug 25, 2018 #22
    Bsmith85

    Bsmith85 Bobtail Member

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    Thanks , yeah imma tear back into it tonight and see what I come up with and I’ll let y’all know
     
    Bsmith85, Aug 25, 2018
    Bsmith85, Aug 25, 2018
    #22
    Oxbow and SAR Thank this.
  4. Aug 25, 2018 #23
    Bsmith85

    Bsmith85 Bobtail Member

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    It’s a 3ZJ53207
     
    Bsmith85, Aug 25, 2018
    Bsmith85, Aug 25, 2018
    #23
  5. Aug 25, 2018 #24
    spsauerland

    spsauerland Road Train Member

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    Here is engine AR and build per SIS.
     

    Attached Files:

    spsauerland, Aug 25, 2018
    spsauerland, Aug 25, 2018
    #24
    Oxbow, SAR and pushbroom Thank this.
  7. Aug 25, 2018 #25
    Bsmith85

    Bsmith85 Bobtail Member

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    Thank you
     
    Bsmith85, Aug 25, 2018
    Bsmith85, Aug 25, 2018
    #25
    Oxbow and spsauerland Thank this.
  8. Aug 25, 2018 #26
    spsauerland

    spsauerland Road Train Member

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    If you need specific part # many guys that can help out on here!
     
    spsauerland, Aug 25, 2018
    spsauerland, Aug 25, 2018
    #26
    Oxbow, SAR and Bsmith85 Thank this.
  9. Aug 25, 2018 #27
    Bsmith85

    Bsmith85 Bobtail Member

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    Yeah I recorded all that went in and come out . Cat had an Service letter with updated parts and that’s what I went back with , a change in liners , pistons , rods , oil pump and cooling nozzles . My worry is if they changed the head gasket kit or head to go with the upgraded lower in , but haven’t found any literature on the top end
     
    Bsmith85, Aug 25, 2018
    Bsmith85, Aug 25, 2018
    #27
  10. Aug 26, 2018 #28
    wore out

    wore out Numbered Classic

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    Really there are only 2 heads for the 3406 mechanicals. The square port exhaust which is the older style and round port for the newer. 3ZJ should have the square. There are several different spring options for different hp settings etc, but the base heads are the same. I would definitely want to know which hole I was looking for before tearing it back down. A bottle test wouldn't hurt that might lead you to a cracked liner flange. Maybe you got sorta lucky and the head of a head bolt popped off.

    What about the spacer plate did you reuse it?
     
    wore out, Aug 26, 2018
    wore out, Aug 26, 2018
    #28
    Oxbow, peterbilt_2005, Bsmith85 and 1 other person Thank this.
  11. Aug 26, 2018 #29
    Bsmith85

    Bsmith85 Bobtail Member

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    Oh it’s the square port head , and no need for a bottle test because the engine is basically locked up because of coolant on top of the piston , so yeah imma tear back down to see what and wear the issue is . Yes I did reuse spacer plate .
     
    Bsmith85, Aug 26, 2018
    Bsmith85, Aug 26, 2018
    #29
    Oxbow and wore out Thank this.
  12. Aug 26, 2018 #30
    wore out

    wore out Numbered Classic

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    Check the plate make sure it's true. Naturally check the head as well.

    What if anything did you put on the thin metal gasket between the block and head?

    Well the good thing bout it being hydrolocked is the problem should show it's self
     
    wore out, Aug 26, 2018
    wore out, Aug 26, 2018
    #30
    Oxbow, peterbilt_2005, SAR and 1 other person Thank this.
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