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Question re brake slide pins

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by xliderider, Aug 21, 2021.

  1. xliderider

    xliderider Senior Member

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    Is it normal to have some shiny galling(sp?), or wear visible in the middle of the slide pins?

    Following Nutz About Boltz video, and a perfect narrow wrench to use is a bicycle cone wrench in 17mm. 20210821_114642.jpeg

    Posted via the PriusChat mobile app.
     
    #1 xliderider, Aug 21, 2021
    Last edited: Aug 21, 2021
  2. ChapmanF

    ChapmanF Senior Member

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    Not surprising to me. The pins don't really slide in and out very much; they will live for long periods at pretty much the same extension, and just wiggle side to side a bit with applications of the brake, while moving in or out less than a third of a mm or so. A little bit of a shiny spot seems normal.
     
    #2 ChapmanF, Aug 21, 2021
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  3. xliderider

    xliderider Senior Member

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    I'm pretty sure that the pins were never serviced/lubed in its 124k mile on the odometer lifetime.

    I'll see what the front pins look like in a bit.

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    #3 xliderider, Aug 21, 2021
  4. xliderider

    xliderider Senior Member

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    Front sliding pins were pretty dry, compared to the rear pins. Brake pads seemed to be evenly worn, I'm glad I finally got around to it.

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    #4 xliderider, Aug 21, 2021
  5. Rebound

    Rebound Senior Member

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    Mine had some shiny slots as well.
     
    #5 Rebound, Aug 22, 2021
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  6. xliderider

    xliderider Senior Member

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    I didn't take pics of the front slide pins, but how come only one of the two slide pins has the black rubber seal on it?

    The back slide pins both have the rubber on the ends.

    Posted via the PriusChat mobile app.
     
    #6 xliderider, Aug 22, 2021
  7. ChapmanF

    ChapmanF Senior Member

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    In older models, there weren't any rubber bits at all. I'd guess they were added for some non-critical reason like to reduce rattly noises, and maybe the position or weight, etc., of the front calipers already keeps one of the pins from rattling.

    The repair manual does show the two pins different in front, with the one that has the bushing going in the lower position.
     
    #7 ChapmanF, Aug 22, 2021
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  8. Mendel Leisk

    Mendel Leisk Senior Member

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    Are upper and lower slightly different lengths as well, or is that false memory? (n)
     
    #8 Mendel Leisk, Aug 22, 2021
  9. xliderider

    xliderider Senior Member

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    Hmm, I cant be certain, but the position of the slide pin with the rubber bushing at the end may have been reversed on one side on my car. It didn't bother me enough to go back and look at the first caliper I already completed though.:whistle:
     
    #9 xliderider, Aug 22, 2021
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