Which threadlock liquid for caliper bolts?

Discussion in 'The Garage' started by Zapp22, Apr 11, 2019.

  1. Zapp22

    Zapp22 ZAPP - Tejas

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    I'm putting the front end back together on a V-strom, and noticed the manual says a lot about threadlock, which I'm no stranger to. Here in 2019, what threadlock are you guys happy using on caliper mounting bolts? I read quite a bit, but find no consensus - some say "my pappy never used no liquid on no bolts" - some say blue is universal - some say Red or you die - and Suzuki puts white paint on those bolts, so do they mean "white" threadlock? Probably for liability reasons, aftermarket performance brake calipers/kits will often if not always ship with the intended threadlocker included and dire warnings about using it properly.

    appreciate the advice.

    z
    #1
  2. RetiredandRiding

    RetiredandRiding Retired to Ride

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    I've never previously used threadlocker on caliper bolts. I just tighten them to lb-ft as instructed in the manual.

    When I re-assemble my 1978 Ural, the plan is blue on almost everything that may need to come apart within a few years and red on everything else.
    #2
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  3. TripleTriples

    TripleTriples Been here awhile

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    I've always used antiseize and then torque to spec. Haven't lost one in 20 some years of doing it.
    #3
  4. Disston

    Disston ShadeTreeExpert

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    I think paint is applied after assembly so a loose fitting can be spotted immediately. It's not the thread locker.
    #4
  5. anotherguy

    anotherguy unsympathetic

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    Anti-seize,torque and safety wired.
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  6. kasuckmo

    kasuckmo Been here awhile

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    Just tighten the fucker
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  7. branthopolis

    branthopolis Long time lurker Noob

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    Definitely not Red. A couple drops of Blue wouldn't be the end of the world if it makes you feel better about it.. Anotherguys answer above is the best though.
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  8. 23103a

    23103a not n00b

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    None.. just torque to spec. That's what I do anyways, a little blue wouldn't hurt anything.
    #8
  9. C Squared

    C Squared Now with TURBO! Supporter

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    Just understand that lube or antisieze can add 30 percent or more to a dry torque spec. Assemble things the way they are spec'd. Blue or red lock tight? How much chance of coming loose? And, dry prep to threads before.
    #9
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  10. B02S4

    B02S4 Aye

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    I use blue. There is no downside to using blue, that I am aware of, for that application.
    #10
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  11. double_entendre

    double_entendre It's nothing personal; just your existence.

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    I'm a fan of blue and prefer the stick over liquid. Maybe it's a belt and suspenders thing, but on mission critical components, I'm ok with that.

    :fpalm

    Reminds me of an old Cycle World op-ed about a guy who had three torque settings: white knuckle, grunt, and break wind.

    WCGW?
    #11
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  12. roger123

    roger123 Long timer

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    Anti-seize and tighten has been my routine on most things for 40 years. I grew up in the UP, we put anti-seize on everything to try and give yourself a fighting chance against rust, didn’t usually work......

    I’ve lived down south for many years and it’s still my habit, especially on the boat.
    #12
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  13. C/1/509

    C/1/509 Now with more sarcasm

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    LOL - nice torque specs!
    #13
  14. C/1/509

    C/1/509 Now with more sarcasm

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    Yup - I like the idea of a drop of paint on critical fasteners.
    #14
  15. LuciferMutt

    LuciferMutt Rides slow bike slow

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    The paint is a torque inspection marking and doesn't lock anything. Sometimes it's applied between the head of the bolt and part, so any rotation of the bolt head causes the paint to crack.

    Unless the manual specifically states to use threadlocker on the caliper bolts, do not use it, but do use a torque wrench.
    #15
  16. TripleTriples

    TripleTriples Been here awhile

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    Caliper bolts are roughly three uggaduggas on the 3/8 impact.
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  17. Ducky 149

    Ducky 149 Been here awhile

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    Another vote for none.
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  18. RonKZ650

    RonKZ650 Been here awhile

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    None here as well. Thread lock is meant for dealer mechanics as a backup safety measure in case they forget to tighten bolts, which is most the time. Do it yourself and use a torque wrench, no way in the world those bolts will ever come loose.
    #18
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  19. KeithinSC

    KeithinSC Long timer

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    Tighten until stripped. Then back off a half turn.
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  20. baldman1

    baldman1 Long timer

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    Wow nothing like making a simple thing complicated!
    #20
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