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  1. #1
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    Reputation: Davey Simon's Avatar
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    SLX brake pad problems.

    I just changed my front and rear Shimano SLX metallic brake pads.

    The front went perfectly.

    The back did not go smoothly. It is all back together but it feels like there isn't enough room for the new bigger pads. I pushed the pucks back in place gently but it still does not seem to be enough. It went together but it does not have as much room as the front.

    Do I need to take it all back apart and push on the brake pucks again?

  2. #2
    bt
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    spread pads apart fully and hold while simultaneously unscrewing master cylinder plug to allow any excess fluid to escape.

  3. #3
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    Quote Originally Posted by bt View Post
    spread pads apart fully and hold while simultaneously unscrewing master cylinder plug to allow any excess fluid to escape.
    There are two ports on the brake lever. Which one should I use? Sorry if this is a dumb question but I'm dumb.

  4. #4
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    SLX brake pad problems.

    I'm not an expert but am not crazy about the idea of evacuating "excess" fluid from your brakes. That's highly likely to put some air in the system unless you are super cautious about opening and resealing the bleed port. Try this first >> Watch some YouTube videos on servicing Shimano and yes, take the pads back out and spread the pucks gently with a large flat bladed screw-driver, then reinstall brake pads.


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  5. #5
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    Quote Originally Posted by Scott In MD View Post
    I'm not an expert but am not crazy about the idea of evacuating "excess" fluid from your brakes. That's highly likely to put some air in the system unless you are super cautious about opening and resealing the bleed port. Try this first >> Watch some YouTube videos on servicing Shimano and yes, take the pads back out and spread the pucks gently with a large flat bladed screw-driver, then reinstall brake pads.


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    I carefully opened the port and I can see why you don't think it is a good idea. The procedure worked but it could have easily added air into the system.

  6. #6
    bt
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    it won't add air into the system.

    just make sure the plug is at an upright position.

    if there is too much fluid in the system, which sounds like the problem, spreading the "pucks" as you call them
    without releasing the excess fluid is pointless as the pads will return right back where
    they were.

    also, no reason to take the pads out when doing this.

    use a plastic tire lever to open the gap.

    once you realize how the system operates you'll
    be far less apprehensive of servicing it.

  7. #7
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    Quote Originally Posted by bt View Post
    it won't add air into the system.

    just make sure the plug is at an upright position.

    if there is too much fluid in the system, which sounds like the problem, spreading the "pucks" as you call them
    without releasing the excess fluid is pointless as the pads will return right back where
    they were.

    also, no reason to take the pads out when doing this.

    use a plastic tire lever to open the gap.

    once you realize how the system operates you'll
    be far less apprehensive of servicing it.
    Thanks for your help. Bike is now dialed


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