Author [NL] [FR] [ES] [DE] [SE] [IT] Topic: Front brake caliper bolts.  (Read 6584 times)

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  • Offline Grubloon

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    Offline Grubloon

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    Front brake caliper bolts.
    on: Jan 12, 2018, 06.14 pm
    Jan 12, 2018, 06.14 pm
    In removing the front wheel yesterday for a new tyre to be fitted today, when it came to removing the mudguard and  brake calipers, two problem arose, firstly the four allen bolts holding the front part of the guard, three came out reasonably ok, a bit tight but no damage, last bolt undid one turn then snapped, so that will have to de drilled out, re-tapped and new bolt fitted.

    Next came the caliper bolts, two were tight, but came out ok, other two were very tight, they came out eventually but removed part of the thread from the caliper, now I am having  to check to see  how much damage there is to the threads and I might have to fit some helicoils to the threads if they are to damaged.

    Question is do I lube the bolts, and with what type of lube, when they are replaced , or leave them dry, never had this problem before, and it would seem that the bolts have not been removed in a while, certainly not by me, will have to check the rear caliper next, don't want the bolts or the sliding caliper seizing, happened on my Tiger, cost me a new caliper that time.

  • Offline nert   us

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    Offline nert

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    Re: Front brake caliper bolts.
    Reply #1 on: Jan 12, 2018, 06.31 pm
    Jan 12, 2018, 06.31 pm
    More questions? How many miles on the bike? Have you replaced the front brakes. I use anti-seize compound on almost everything I put back together.

  • Offline Grubloon

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    Offline Grubloon

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    Re: Front brake caliper bolts.
    Reply #2 on: Jan 12, 2018, 07.38 pm
    Jan 12, 2018, 07.38 pm
    Its a 2012 Launch bike, I've had the bike since Jan 2015, it had 9,000 miles on it, and now just over 18,000 miles on it, down side is I've not used it much in the last 12 months. :151:

    It's the first front tyre I've fitted, and new pads went in last May.

    What type of Anti-seize compound do you use, the only compound I have used  is copper-slip on small parts that are not under any type of load.

    Up until middle of 2016 the bike was used every day for commuting as well as touring, but since a job change it's not viable to use the bike, as distance is negligible and traffic very light, having said that this year I will use the bike more for work but will take a longer way home.  :152:

  • Offline nert   us

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    Offline nert

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  • Offline bobv07662

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    Offline bobv07662

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    Re: Front brake caliper bolts.
    Reply #4 on: Jan 13, 2018, 12.41 am
    Jan 13, 2018, 12.41 am
    What do they put on the roads in the UK for deicing? In the US some areas use salt...not good for nuts and bolts!
    1978 Bonneville    1973 Trophy Trail TR5T
    2012 Thruxton      1976 Hodaka ED250
    2014 Trophy SE    1950 Vincent Rapide
    1976 Yamaha RD400C 1969 Rickman 8 valve
    1978 Yamaha DT400E

  • Offline Coconut   gb

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    Offline Coconut

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    Re: Front brake caliper bolts.
    Reply #5 on: Jan 13, 2018, 10.03 am
    Jan 13, 2018, 10.03 am
    In the UK it's Rock Salt - and you're right - it can cause serious corrosion !

    Last Edit: Mar 22, 2020, 10.19 am by Coconut

  • Offline Jubeeprince

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    Offline Jubeeprince

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    Re: Front brake caliper bolts.
    Reply #6 on: Jan 17, 2018, 05.56 pm
    Jan 17, 2018, 05.56 pm
    Dissimilar metals can lead to galvanic corrosion. This can lead to problems extracting bolts, screws, etc. Any sign of loc-tite on the threads?

    Perhaps the PO used some red loc-tite on them?

    Always a good idea to use some "liquid wrench" or similar product on the fasteners prior to removal.

    Cheers,

    Steve
    Last Edit: Jan 17, 2018, 05.58 pm by Jubeeprince

  • Offline Coconut   gb

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    Offline Coconut

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    Re: Front brake caliper bolts.
    Reply #7 on: Jan 17, 2018, 07.19 pm
    Jan 17, 2018, 07.19 pm
    The Service Manual doesn't call for any Loctite or similar compound on the Caliper Bolts,
    which should be tightened to 50 Nm.


    Last Edit: Mar 22, 2020, 10.18 am by Coconut

     



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