Replacing brake and clutch fluid

Discussion in '8th Generation 2014-Present' started by James Bond, Sep 24, 2019.

  1. James Bond

    James Bond Member

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    Need simple instructions from anyone that's done this. Is a "speed bleeder" really necessary?

    Thanks in advance.
     
  2. Terry Smith

    Terry Smith Member

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    If you are reasonably dexterous there should be no need to use a speed bleeder. Take the top off the reservoir. Make sure you don't allow the fluid level in the reservoir to drop too low that you suck in any air during the bleed process. Attach a drain hose (preferably a clear tube) to the nipple directed into a waste container (an old bourbon bottle works great, heavy base stops it tipping over!), apply pressure at the pedal or lever, crack the nipple and release the pressure, close the nipple, then release pressure at the pedal/lever. And repeat until you see nice, fresh-looking fluid coming out of the nipple/hose.

    If the reservoir has any muck in it, syringe out most of the fluid, swab out the reservoir carefully and then refill before doing any of the above.

    If you are working on a bike with linked brakes (you have a 5G in your profile pic) then the bleed process needs to be done in a specific sequence; RTFM!
     
  3. Laker

    Laker New Member

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    Well JB, I have the Speedbleeders and find the bleeding job to be quite easy, just open the nipple and pump until clean fluid passes through. You can get the set from wiremybike. Good luck.
     
  4. fink

    fink Member

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    No speed bleeders required. I use a 20mm syringe and a but of s(think) silicone hose and suck the fluid through but it also works if you pump and lock off normally. Keep master cylinder horizontal and covered.

    If you drain the system be aware you can trap air at the master cylinder banjo bolt.
     
  5. Wahlstrom

    Wahlstrom New Member

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    And know that it takes quite some time to bleed the slave... be sure that the tiny return hole is clear..
    Check by applying brake or clutch and when releasing it should make a little squirt
     
  6. James Bond

    James Bond Member

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    I got the job done. Not a hard job without a speedbleeder at all. I don't see the need for a speedbleeder. Kind of amazed at how much better both the brake and clutch feel improved. The clutch fluid was pretty dirty as was the reservoir. Brake fluid looked ok but wasn't OK based on better braking. Never will I let it go as long.
     
  7. OOTV

    OOTV Member

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    Yeah, although I have speed bleeders on all my bikes, their benefit is more or less in saving time. That being said, with the linked braking system and its multiple bleed points, this is where they shift from just being a time saver to being very helpful. Without a second person to lend a hand, being at two points of the bike simultaneously is difficult at best I.e. actuation and holding of the SMC and opening/closing the PCV bleeder. I was able to bleed my clutch and braking system on my 6 Gen in a matter of minutes solo.
     
  8. mello dude

    mello dude Member

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    +1 to OOTV's note....

    Thats the thing.. agree we dont need no stinking speed bleeders.... Sure great, whatever.... but for about around the cost of a tank of gas, you get an aid which makes a near night and day difference in hassle of screwing with a bleeding job. Once you have them, its a Homer Simpson "Doh!" -- Oh shit, why didnt I get these earlier?
    Still wanna do it the hard way?
     
    Last edited: Oct 12, 2019 at 12:41 PM
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