Rear Brake Won't Pump Up

Discussion in 'Triumph General Discussion' started by Kamero68, Mar 26, 2018.

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  1. Kamero68

    Kamero68 New Member

    Nov 14, 2017
    0
    1
    California
    Help I just installed a motone brake relocation bracket on a 2013 Thuxton and have tried everything I cant get rear brakes to get stiff what am I missing any advice will help thank you
     
  2. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,181
    1,000
    Uk
    By stiff i take it you mean.....do they make contact on the disc when applied? Have you bled them properly, did they supply a new brake hose with the kit? Triumph Twin Power supply one with their kit maybe thats important.
     
  3. Kamero68

    Kamero68 New Member

    Nov 14, 2017
    0
    1
    California
    No line but I've bleed them reverse bleed them and nothing the pads are hitting the disc but the pedal goes all the way down I have it up on center stand and when I push pedal it doesn't stop rear wheel until I start it then it grabs so I thought I fixed it went for a ride and still no rear brakes .
     
  4. Rocker

    Rocker Elite Member

    May 1, 2016
    1,659
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    Suffolk
    Are the brakes linked and don't you need a special tool to bleed abs brakes?
     
  5. Kamero68

    Kamero68 New Member

    Nov 14, 2017
    0
    1
    California
    No brakes aren't linked and I don't know about any special tool ?
     
  6. Callumity

    Callumity Elite Member

    Feb 25, 2017
    3,355
    800
    Nr Biggar
    You have got air in the system. Relocation of the caliper has probably given you a loop of hose higher than both master cylinder and caliper.

    Solution: dismount the caliper (not the bracket) and put something marginally thicker than the disc between the pads then elevate the caliper as vertically as you can (wire to frame?)and bleed as before so air can rise freely up the hose, into the caliper, out the bleed nipple and via clear pipe into a partially filled jar so you can watch the air being purged.
    Alternatively drop the caliper (pads separated as before) below the master cylinder and hang a weight off the pedal. Leave overnight. This will allow air to escape back up into into the master cylinder and be replaced by descending fluid. Lift off weight and bolt caliper back on.....
     
    • Agree Agree x 4
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  7. Rocker

    Rocker Elite Member

    May 1, 2016
    1,659
    800
    Suffolk
    As above or fit a 3 foot bleed tube on the nipple, partially open it and draw the fluid though with a syringe works every time:)
     
    • Agree Agree x 1
  8. youngy

    youngy Active Member

    Oct 30, 2017
    38
    28
    Peterborough
    if in doubt, suck it out.
     
  9. andypandy

    andypandy Elite Member

    Jan 10, 2016
    3,867
    800
    Shaw
    Silly question but when you bled the brake you did top up the reservoir ?
     
  10. Kamero68

    Kamero68 New Member

    Nov 14, 2017
    0
    1
    California
    Yes I did top it up and used a syringe so I'll try what callumity suggests thank you all
     
  11. crispey

    crispey crispey creme de la creme

    Nov 6, 2014
    7,181
    1,000
    Uk
    Please let us know how you get on
     
  12. Red Thunder

    Red Thunder Crème de la Crème

    Dec 2, 2014
    2,033
    1,000
    High Wycombe
    Solution: dismount the caliper ....Alternatively drop the caliper (pads separated as before) below the master cylinder and hang a weight off the pedal. Leave overnight. This will allow air to escape back up into into the master cylinder and be replaced by descending fluid. Lift off weight and bolt caliper back on.....

    By hanging a weight on the pedal, arn't you just causing the lines to be pressurised, the valve to the reservoir would be closed and the air would only escape when you release the brake - by pressurising the lines, does this help extract any air?
     
  13. StrippleMont

    StrippleMont Senior Member

    Nov 5, 2016
    343
    220
    Round your way!
    TTP Site Instructions
    https://www.triumphtwinpower.com/pdf/UpNOver Installation Guide.pdf
    (14)Fill the system with brake fluid and bleed the system. When bleeding the system,it is important toremove the caliper from the UpNOver hanger and angle the caliper so that the bleed nipple is facing
    upwards, this will help ensure all air is evacuated from the system. It is also necessary to insert something between the pads to stop them closing up while bleeding

    Fitted one recently, you need to follow instructions to the letter.
    Took a lot of "bleeding"
     
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  14. youngy

    youngy Active Member

    Oct 30, 2017
    38
    28
    Peterborough
    RTFM!
     
    • Agree Agree x 1
  15. Rudeboy

    Rudeboy Senior Member

    May 2, 2017
    402
    113
    Bristol
    Its a pain in the arse agreed I remounted the pipe for the up position put a flat piece of metal between the pads to replicate the disc then sort of turned it upside down rested it on a piece of wood then attached an easi bleed tube or use tube into some brake fluid in a bottle making sure its a nice tight fit on the nipple open the nipple on the downstroke of the pedal when down lock off then up keep at it untill all the air is gone from the plastic tube refit it to the bracket takes a while but if you persist you will get there.
     
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