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Replacement brake bleeder screws?

Discussion in '308/328' started by rjd2, Nov 9, 2020.

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  1. rjd2

    rjd2 Karting

    Jul 28, 2016
    125
    #1 rjd2, Nov 9, 2020
    Hey all, I did a search, and couldnt find info on this: is anyone aware of a known drop in replacement for these? I recently got my calipers back from the rebuild shop, and found that they seated new bleeder screws. They both fit at the caliper, but the rears just dont feel right-they run smoothly all the way in thru all the threads, but there's a bit more play on the rears than on the fronts. Also, the fronts are a 9mm, and the rears are smaller(7mm or 8mm, just tightened by hand). For a critical component, I am not at all at ease with this.

    Does anyone know of an off the shelf, confirmed fit for this part? Thanks if so.
     
  2. rjlloyd

    rjlloyd Formula Junior

    Jun 19, 2014
    447
    Brisbane, Australia
    Full Name:
    Richard Lloyd
    #2 rjlloyd, Nov 9, 2020
  3. absostone

    absostone F1 World Champ
    Silver Subscribed

    Jul 28, 2008
    10,027
    #3 absostone, Nov 9, 2020
    PMB Utah
     
  4. Dr Tommy Cosgrove

    Dr Tommy Cosgrove Three Time F1 World Champ
    Owner Rossa Subscribed

    May 4, 2001
    36,431
    Birmingham, AL
    Full Name:
    Tommy
    #4 Dr Tommy Cosgrove, Nov 9, 2020
    The rears on my 84 QV are 7 mm
     
  5. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,961
    Isle of man- uk
    #5 mike32, Nov 9, 2020
    Run a thread tap down
    the may have cleaned the thread out with a plug tap and increased the clearance too much, try a tap in it to see how tight or loose it is.
     
  6. rjd2

    rjd2 Karting

    Jul 28, 2016
    125
    #6 rjd2, Nov 9, 2020
    thanks folks! might be worth me posting a video of the play in the screw, to see if it's normal....
     
  7. moysiuan

    moysiuan F1 Rookie
    Silver Subscribed

    Nov 1, 2005
    4,187
    Canada
    #7 moysiuan, Nov 9, 2020
    https://www.sportbiketrackgear.com/speed-bleeder-thread-sealant/

    The bleeder seats and seals on the bottom cone, you don't need to tighen much to seal a good bleeder and casting, and you don't want to strip the threads. Perhaps using a bit of the speed bleeder sealant will help keep things snug and don't tighten more than needed to seat them.

    Worst case if you strip there are caliper repair kits for this, but obviously don't want to go there.
     
    Milkshaker0007 likes this.

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