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master cylinder

  • 16-03-2011 11:30pm
    #1
    remington 700
    Registered Users, Registered Users 2 Posts: 28 ✭


    i have a 04 vauxhall vectra about three months ago i changed 2 back wheel bearings and 2 back calipers and pads. and brake pedal has been funny since the fella i got to do the job said that it was the master cylinder was gone. but i still have a good enough brake just a bit spongey he blead them but no good any advice welcome. would it take alot of bleeding after a job like that. other people told me that if the master cylinder was gone i would have no pedal at all


Comments

  • #2
    Nissan doctor
    Closed Accounts Posts: 8,223 ✭✭✭Nissan doctor


    I'd get the brakes bled by someone else first to be sure. There would be no reason for the master cylinder to be gone on an 04 vectra unless it has huge miles or the person who fitted the calipers made a balls of something.


  • #3
    mickdw
    Registered Users, Registered Users 2 Posts: 23,812 ✭✭✭✭mickdw


    Would be worth bleeding at the master cylinder in case the guy only did the air bleed at the rear wheels.

    Air could be in the master cylinder if he happened to let the fluid level down too low during the repair.


  • #4
    cb900ie
    Closed Accounts Posts: 54 ✭✭cb900ie


    A number of Opels have a problem that can arise with the master cylinder when pushing back the calliper pistons. From memory, one or both seals can be damaged/turned in the master cylinder.


  • #5
    mickdw
    Registered Users, Registered Users 2 Posts: 23,812 ✭✭✭✭mickdw


    I always think it is madness to push fluid backward through any brake system. Better to just let out some fluid when pushing piston back to take new pads.


  • #6
    Nissan doctor
    Closed Accounts Posts: 8,223 ✭✭✭Nissan doctor


    cb900ie wrote: »
    A number of Opels have a problem that can arise with the master cylinder when pushing back the calliper pistons. From memory, one or both seals can be damaged/turned in the master cylinder.


    Thats a story which still floats around even though the problem was with late 80's and early 90's Opels, not any built in the last 10-12 odd years.
    mickdw wrote: »
    I always think it is madness to push fluid backward through any brake system. Better to just let out some fluid when pushing piston back to take new pads.

    Thats the correct way to do it, open the bleed nipple when pushing back the piston.


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  • #7
    cb900ie
    Closed Accounts Posts: 54 ✭✭cb900ie


    Nissan doctor wrote: »
    Thats a story which still floats around even though the problem was with late 80's and early 90's Opels, not any built in the last 10-12 odd years.

    Fairly sure that it was a 02 or 03 Astra.


  • #8
    Nissan doctor
    Closed Accounts Posts: 8,223 ✭✭✭Nissan doctor


    The 02/03 model astra G came out in 98. It was the earlier astra F models that suffered badly from it.


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