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Cat 3406B exhaust manifold bolts

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Rick Wilmath, Jul 7, 2019.

Page 2 of 2
  1. Jul 7, 2019 #11
    Rick Wilmath

    Rick Wilmath Light Load Member

    57
    3
    May 15, 2016
    0
    Ok, If I have to take the manifold off, is there a safe easy way to do it. I am concerned I am going to break a few more studs getting it off. I have been pickleing the studs in PB blaster but I don't know if it is going to be enough.

    Also, once I get the manifold off do I need to remove all of the existing studs? If I do can I use a couple of nuts and lock them together?

    BTW. I am selling this truck and I won't be getting that much for it but it seems this repair is critical so I am going to do it.

    Thanks everyone for the help!
     
    Rick Wilmath, Jul 7, 2019
    Rick Wilmath, Jul 7, 2019
    #11
    Oxbow Thanks this.
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  3. Jul 7, 2019 #12
    wore out

    wore out Numbered Classic

    14,343
    173,984
    Jun 5, 2013
    CHASIN THE DEVIL'S HERD
    0
    Take a small ball peen hammer and hit the end of the studs pretty sharp. Several times each. Don't worry about the threads. Then put your box end wrench on em and apply pressure steady increasing as you hit them on the end. Vibration is the key
     
    wore out, Jul 7, 2019
    wore out, Jul 7, 2019
    #12
    TGUNKEL, Oxbow and spsauerland Thank this.
  4. Aug 17, 2019 #13
    Rick Wilmath

    Rick Wilmath Light Load Member

    57
    3
    May 15, 2016
    0
    I finally got all of the studs out and am now am ready to install new studs. Does anyone know how much to torque the studs? Also, does it matter which side the exhaust manifold gaskets are applied to the manifold?
    Thanks
     
    Rick Wilmath, Aug 17, 2019
    Rick Wilmath, Aug 17, 2019
    #13
  5. Aug 18, 2019 #14
    Gambino1994

    Gambino1994 Light Load Member

    184
    98
    Jan 22, 2009
    causing a situation
    0
    I tightened my new studs on my b model with a pair of pliers, kind of hand tight with the pliers so that probably equals maybe 10-12 lb/ft. I have seen instructions saying studs need to be only hand grip tight also.
     
    Gambino1994, Aug 18, 2019
    Gambino1994, Aug 18, 2019
    #14
  7. Aug 18, 2019 #15
    swaan

    swaan Road Train Member

    2,943
    4,371
    Jul 12, 2009
    BC canada
    0
    Finger tight lots never seize.
     
    swaan, Aug 18, 2019
    swaan, Aug 18, 2019
    #15
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