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Technical Locktite ?

Discussion in 'The Hokey Ass Message Board' started by dtwbcs, Feb 24, 2017.

  1. dtwbcs
    Joined: Nov 15, 2011
    Posts: 841

    dtwbcs
    ALLIANCE MEMBER
    from Brenham,TX

    Was checking my intake&exhaust-235 with dual C/W's
    Was wondering if I could use blue locktite on the bolts? Some were loose.I have a pretty rumpy cam(3/4) and it does vibrate the engine at times.
    Thoughts-
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 44,371

    squirrel
    Member

    sure....it should help.
     
    tfeverfred and dtwbcs like this.
  3. dtwbcs
    Joined: Nov 15, 2011
    Posts: 841

    dtwbcs
    ALLIANCE MEMBER
    from Brenham,TX

    That's good to know. I might put some on other bolts that I find loose.
    Thanks
     
  4. tb33anda3rd
    Joined: Oct 8, 2010
    Posts: 15,291

    tb33anda3rd
    ALLIANCE MEMBER
    1. Connecticut HAMB'ers

    it always seams to take 3 "tightenings" before they stop coming loose. at least that is what i have found.
     
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  5. DDDenny
    Joined: Feb 6, 2015
    Posts: 12,920

    DDDenny
    Member
    from oregon

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  6. squirrel
    Joined: Sep 23, 2004
    Posts: 44,371

    squirrel
    Member

    I agree with the three tightenings thing. I'd give it some time before trying loctite. Once the gaskets compress fully, then add locktite.
     
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  7. dtwbcs
    Joined: Nov 15, 2011
    Posts: 841

    dtwbcs
    ALLIANCE MEMBER
    from Brenham,TX

    Its been in the car several years now. Was referring to the the "bluetite" claims loosens with hand tools....
     
  8. To loosen red locktite, you put heat on it. Don't know if its suitable for headers. Blue can be loosened with tools.
     
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  9. Joliet Jake
    Joined: Dec 6, 2007
    Posts: 488

    Joliet Jake
    Member
    from Jax, FL

    Red works for me down to 1/4" fasteners but for exhaust, grade 8 lock washers, in my experience, locktite will "burn" over time.
     
  10. Barrelnose pickup
    Joined: Aug 20, 2008
    Posts: 897

    Barrelnose pickup
    ALLIANCE MEMBER

    You could look at it simply,
    Blue could be used on external fasteners that could vibrate loose,
    Red for internal fasteners that you don't want floating around your rotating parts.
    This is how we think putting hydraulic components together.
    Get a Loctite spec sheet,there's many varieties and purposes.
     
  11. gimpyshotrods
    Joined: May 20, 2009
    Posts: 16,505

    gimpyshotrods
    Member

    If you mean split-lock washers, no. They work no better than a plain washer, or no washer at-all.

    If your bolts are not loosening, it is because you torqued them properly.
     
  12. Torana68
    Joined: Jan 28, 2008
    Posts: 1,128

    Torana68
    ALLIANCE MEMBER
    from Australia

    Loctite is good when used properly and its best to use the number rather than the colour, they don't make a Loctite that will survive exhaust temps . 290 is a handy one for applying without pulling things apart (if still clean)
     
  13. dtwbcs
    Joined: Nov 15, 2011
    Posts: 841

    dtwbcs
    ALLIANCE MEMBER
    from Brenham,TX

    if still clean-good point
     
  14. deathrowdave
    Joined: May 27, 2014
    Posts: 2,016

    deathrowdave
    ALLIANCE MEMBER
    from NKy

    Studs with nuts would be a great help if you have room to install . You can add larger amounts of torque . Loosening up is wearing on threads in head where bolts are screwed into . Studs would prevent this also , thread lock or locknuts on outside stud thread will work better than threadlocker on internal thread
     
  15. indyjps
    Joined: Feb 21, 2007
    Posts: 3,595

    indyjps
    Member

    You could try new high quality bolts. If you reused the old ones they they probably have worn threads from multiple tightening and corrosion.

    I do like loctite.
     
  16. tikiwagon13
    Joined: Feb 23, 2011
    Posts: 371

    tikiwagon13
    Member

    Loctite won't work for headers, too hot. Check the bolt length, make sure they are not bottoming out before the proper torque, seen it happen. Just to be safe I would buy ARP header bolts made for your application, follow their toque specs and you'll be good to go.
     
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  17. mcmopar
    Joined: Nov 12, 2012
    Posts: 1,509

    mcmopar
    ALLIANCE MEMBER
    from Strum, wi

    Green Loctite will make sure that it wont come loose.
     
  18. jimmy six
    Joined: Mar 21, 2006
    Posts: 5,195

    jimmy six
    ALLIANCE MEMBER

    The "correct" lock washers for headers look different. They are thicker and not necessarily larger in diameter because of the tight fit. Not on headers but my personal Loctite is machine screw purple.
     
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