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Thread: brake pedal judder

  1. #1
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    brake pedal judder

    Hi guys
    A little help needed with a mk4 Golf V6
    whilst being off I have fitted drilled and grooved brake discs and pads,under braking at and above 50 mph
    the brake pedal feels slightly juddery,it cant be a bad disc as they are new,i have refitted them with no difference
    made.
    Don't know if they need more bedding in or not,covered about 50 miles
    Any advise will be greatly appreciated
    Regards
    2004 Golf 4Motion 2.8 V6

  2. #2
    Administrator Crasher's Avatar
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    You certainly have disc runout by the sound of it which could be the hub or the disc, you need to dial gauge the hub but dial gauge checking a grooved disc is a problem...

    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  3. #3
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    Thanks Crasher
    I will try that tomorrow ive got a DTI somewhere
    cheers
    2004 Golf 4Motion 2.8 V6

  4. #4
    Administrator Crasher's Avatar
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    The spec is 0.03mm.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  5. #5
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    Thanks for the spec
    I feel it may be a little more
    Maybe a hub rebuild
    2004 Golf 4Motion 2.8 V6

  6. #6
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    New hub and bearing, not a bad job IF you have a press.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  7. #7
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    Thanks for all the asistance
    its the hub on the nearside,we have a press at work so when I go back I can press the bearing in
    cheers
    2004 Golf 4Motion 2.8 V6

  8. #8
    Administrator Crasher's Avatar
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    The hub you can hammer out with a suitable socket and copper hammer as you won’t be reusing it but the old bearing will need pressing out of the hub carrier. When pressing the new hub into the installed bearing, Rembrandt to support the centre inner race otherwise you will destroy the bearing. I put the hub on the press support and press the hub carrier onto the hub by pushing on the centre race. If it has never been apart, the cv joint can be a real **** to get out

    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

  9. #9
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    All done now,thanks for the info
    what would be the best discs for the front? some people seem to have had issues with drilled and grooved with cracking etc
    cheers
    2004 Golf 4Motion 2.8 V6

  10. #10
    Administrator Crasher's Avatar
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    I only fit Black Diamond 12 groove.
    "I disapprove of what you say, but I will defend to the death your right to say it"

    Evelyn Beatrice Hall (28 September 1868 13 April 1956)

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