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Thread: Brake Caliper piston broken

  1. #1
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    Default Brake Caliper piston broken

    I have just removed my calipers on the front of my 2005 elite vectra to find that on the drivers side caliper, the piston is in 3 bits. Now upon compressing the caliper (to fit new pads and discs) there seems to be a miss alignment of the pieces of the piston.
    Obviously not safe to drive now, as i'm guessing that due to a small weep of fluid, the seal is shot as well.

    Now, how hard are they to change? I've got one on order, and it hopefully will be here tomorrow.

    But could someone just talk me through the process!

    I'm no beginner to caliper changes, BUT this is my first vectra one, and i'm hoping that i wont have to bleed the whole system?!

    Can i just clamp the hose on the deffective caliper, and refil the resivoir meaning i only have to bleed the replacement caliper?!

    Many thanks guys.

  2. #2
    Admin plasma's Avatar
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    Vehicle : Vectra

    Trim : SRi

    Engine : 150

    Year : 05

    Mileage : 74000

    Default

    If the brake res. has not dropped below minimum (or the entry to the feed pipes) then yes you may clamp the hose, change out the bad caliper and then just bleed that one.... But check your levels first before you do it, if its dropped below the feed pipes then you'll have to bleed the whole lot.
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    Default

    it hasn't dropped below yet, but it is weeping from the caliper.

    The new caliper may not be here until saturday.... would it be ok to clamp the hose for that long? or shall i just let it drip and if it drops below the level just bleed the lot?!!

  4. #4
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    you can throw a clamp on it now, but dont nip it up too tight as these arent meant to be on for a long term, but maybe a little pressure would help stop it weeping, also you could just top it up before it gets too low? and put a container underneath where its weeping..?
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    Default

    ok thanks, also, is there a nack to getting these retaining clips on... it's getting to me now!!

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    strong thumbs..
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    Regular Member macdad's Avatar
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    Piston BrokeSounds like a perfect description of me right now,easyish job mate,there is a How too on here i think.

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    Default

    Thanks for the advice guys, got it all done yesterday, and it was relatively easy!! the only thing I've left to do is change the fuel filter, but I'll wait for some nicer weather before that!

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