3406b valve set

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by tj379, Jun 4, 2022.

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  1. Jun 4, 2022 #1
    tj379

    tj379 Light Load Member

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    hello , i want to dona valve adj on my 3406b , would anyone know what size crows foot i need? or any specific tools that will be required? from what iv researched, intake 15 tho, ex 30 tho, jakes , 30 tho , this id a 7fb motor, does this sound correct? any advice, pointers or torque specs would be greatly appreciated , thanks!
     
    tj379, Jun 4, 2022
    tj379, Jun 4, 2022
    #1
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  3. Jun 4, 2022 #2
    God prefers Diesels

    God prefers Diesels Road Train Member

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    God prefers Diesels, Jun 4, 2022
    God prefers Diesels, Jun 4, 2022
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    Another Canadian driver Thanks this.
  4. Jun 4, 2022 #3
    kranky1

    kranky1 Road Train Member

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    The valve lashes are right. Be careful with the brake. The lashes are different between Jake models and the fastener torques and lash for the PacBrakes are different again. You need to identify the brake and use the appropriate values.
     
    kranky1, Jun 4, 2022
    kranky1, Jun 4, 2022
    #3
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  5. Jun 5, 2022 #4
    tj379

    tj379 Light Load Member

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    E2F0AF4B-BBFC-46DD-BACC-CCB3AAF4F400.png ok, these r the brakes, would anuone know by lookin at these what they r?
     
    tj379, Jun 5, 2022
    tj379, Jun 5, 2022
    #4
  7. Jun 5, 2022 #5
    Goodysnap

    Goodysnap Road Train Member

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    Need a closeup of the metal ID tag
     
    Goodysnap, Jun 5, 2022
    Goodysnap, Jun 5, 2022
    #5
  8. Jun 5, 2022 #6
    tj379

    tj379 Light Load Member

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    ok ill have to peel a cover off again
     
    tj379, Jun 5, 2022
    tj379, Jun 5, 2022
    #6
  9. Jun 5, 2022 #7
    kranky1

    kranky1 Road Train Member

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    The model# is on the metal tag on the housing.
     
    kranky1, Jun 5, 2022
    kranky1, Jun 5, 2022
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  10. Jun 5, 2022 #8
    LameMule

    LameMule Road Train Member

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    Look like pacbrakes but I'm no professional
     
    LameMule, Jun 5, 2022
    LameMule, Jun 5, 2022
    #8
  11. Jun 5, 2022 #9
    LameMule

    LameMule Road Train Member

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    Scratch that, I just looked at an old picture of my pacbrakes and they're quite different than the picture you shared.
     
    LameMule, Jun 5, 2022
    LameMule, Jun 5, 2022
    #9
  12. Jun 5, 2022 #10
    tj379

    tj379 Light Load Member

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    lol ok, i dont find they "hold" the best if that makes a difference
     
    tj379, Jun 5, 2022
    tj379, Jun 5, 2022
    #10
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