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Thread: Keeping Header Bolts Tight

  1. #1
    Join Date
    May 2018
    Posts
    10

    Keeping Header Bolts Tight

    Hi
    Does anyone have a way to Keep Header Bolts Tight?
    our Bolts are backing out
    looked thru Forum there is a Post on the 206 Engine section
    They Said Torque and run a Race, then Re-torque
    What would be the Torque setting?
    Thanks
    pw597

  2. #2
    Join Date
    Jun 2015
    Location
    Iowa
    Posts
    82
    If you leave the gasket out and use red rtv instead you wont have that problem anymore.

  3. #3
    Join Date
    Oct 2013
    Location
    iowa
    Posts
    6,241
    Pipe bracing properly done.
    header bolts 17 ft lbs.

  4. #4
    Join Date
    Oct 2013
    Location
    Chatham Va.
    Posts
    2,028
    As stated above. Red rtv. Your header bolts should also be safety wired.
    People say nothing is impossible, but I do nothing every day.


    Paid subscriber to B4C

  5. #5
    Join Date
    Oct 2013
    Location
    Lockport, NY
    Posts
    922
    We use studs and double nut

  6. #6
    Join Date
    Aug 2015
    Posts
    9
    Heli-coils work very well.

  7. #7
    Join Date
    May 2018
    Posts
    10
    Thanks

  8. #8
    Join Date
    Oct 2013
    Location
    Pendleton, sc
    Posts
    1,616
    Socket head bolts and safety wire. They will not come loose as long as there are threads in the cylinder head.

  9. #9
    Join Date
    Oct 2013
    Location
    Virginia
    Posts
    221
    Use studs

  10. #10
    Join Date
    Oct 2013
    Location
    Pendleton, sc
    Posts
    1,616
    Disclaimer: JMO

    With double nutted studs the header is not secure unless you also safety wire them. When you double nut the stud you only secure the nuts from coming loose. The stud it's self can still back out just like an unsecured bolt, if it's not safety wired to the other stud.

  11. #11
    Join Date
    Oct 2013
    Posts
    287
    Safety wire X3.
    They don't call it safety wire for nothing!

    Video how too.
    https://www.youtube.com/watch?v=XktwpWPFvHs

  12. #12
    Join Date
    Oct 2013
    Location
    Virginia
    Posts
    221
    Never had one loosen with studs and double nuts

  13. #13
    Join Date
    Oct 2013
    Location
    Chillicothe ohio
    Posts
    115
    Red loctite. And safety wire

  14. #14
    Join Date
    Oct 2013
    Posts
    287
    Loctite is not safety wire.
    There was a time when you would fail a tech if you were using Loctite or Nylocks to secure bolts on critical devices.
    That may have changed.

    Its REALLY easy to buy some metric cap screws, drill them and wire them.
    Works great for keeping you case cover bolts in place too.
    Always use a hardened washer of the same grade under.
    Differing grade some harder, some softer will deform under load and loosen.

    You will fail a mechanical safety inspection of a truck for example if the mechanic ( here in Ontario ) finds different grades of fasteners used on critical parts like 5th wheel.

  15. #15
    Join Date
    Oct 2013
    Location
    Daytona Beach Shores, FL
    Posts
    630
    Be sure the pipe is braced very well. Fastermotors has a great cradle-type brace we use in addition to the top brace. Never had a problem after that. Previously we did have to heli-coil them.

  16. #16
    Join Date
    Oct 2013
    Location
    Pendleton, sc
    Posts
    1,616
    Blue and red loctite will loosen when heated. Safety wire is the way to go. When you double nut a stud you keep the nut from loosening but double nutting does not keep the stud from coming loose. You can double nut the header studs but it can still fall off, seen it happen many times.

  17. #17
    Join Date
    Oct 2013
    Location
    Augusta, Martinez, Evans, North Augusta or we just call it the CSRA Area (Ga.)
    Posts
    5,075
    Just like Renegade said...we used the bolt style with the hole through the head of bolt and safety wire them together

    https://www.dynocams.com/item/ksr-bolt/
    JRPW Racing
    Paid Subscriber To B4C

  18. #18
    Join Date
    Oct 2013
    Location
    Pendleton, sc
    Posts
    1,616
    We use this one on all our engines.

    https://bmkarting.com/Header-Bolt-Ki...?categoryId=-1

  19. #19
    Join Date
    Nov 2013
    Posts
    399
    Studs, long nuts drilled and safety wired and a rigid pipe brace is all we use. We've never had a pipe com loose.

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