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1981 xj750 front brake caliper rubber thing

Discussion in 'XJ Technical Chat' started by xjmat, Sep 26, 2017.

  1. xjmat

    xjmat New Member

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    I am cleaning my brake calipers and putting in new o-rings. There is a pin that keeps the two halves of the caliper together. The channel it runs through has a rubber boot on either end of it (see picture). Do those rubber boots come out? I gave them a bit of a pull, but they seem quite reluctant...

    Also, there are two square channels that were filled with crap of some sort - are they just meant to be cleaned out, or should they hold something (a shim lies over the top of them)?

    [​IMG]

    https://imgur.com/a/5prCN
     

    Attached Files:

    xjmat, Sep 26, 2017
    #1
  2. XJ550H

    XJ550H Well-Known Member Premium Member

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    those boots come out but not easily leave them alone as thay are costly to replace. with only 1 source known for them
    just clean the channels
     
    XJ550H, Sep 26, 2017
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    Jetfixer likes this.
  3. Jetfixer

    Jetfixer Well-Known Member

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    Leave them be ...just clean them and put some silicone or armor all on them .
     
    Jetfixer, Sep 26, 2017
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  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    +1 and +1

    Leave the boots on unless they have failed. The block runs clean and dry. The channels are there to give road grime a place to go, so the mating surfaces stay clean.
     
    k-moe, Sep 26, 2017
    #4
  5. PJC750

    PJC750 Member

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    Just cleaned my calipers too...the boots are good except one has small crack. I could prob add break grease via a needle tip to fill the boot? Any suggestions? I am considering buying pair from Len $33 . To your point, they did not pop out when i was cleaning the channel. I didnt want to tear them either, tried to be gentle with my work. I added grease etc to insert the pin( I was trying to pack the boot with grease, not really successful).
     
    PJC750, Mar 26, 2018
    #5
  6. PJC750

    PJC750 Member

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    Leaning towards letting sleeping dogs lie.
     
    PJC750, Mar 26, 2018
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