replacing caliper piston seals

  1. Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390
    #1
    Any guides to doing it? Need to replace a rear caliper seal but ive never done it before.
  2. Established Member Joined: Jan 2009 killin,perthshire Posts: 1561 Audi a3 1.8sport,kawasaki zx9r c2,Yamaha R1 track
    #2
    Have you removed the caliper yet?

    If not leave it attached to the hose and pump the piston out,not all the way but enough to make it easier to remove.Sometimes they can be a right arse to remove,but if they are free enough it might be simple enough to pull it out.

    Once its out use a pair of long nose pliers to pull the seal out,I can't remember if there is a dust seal but the one on the inside is the one you need to get out,its simple enough as it sits in a small groove,the new one just sits in place and when you put the piston back in make sure it goes in nice and square so it doesn't dislodge the seal at all......

    Will be worth while cleaning up the piston if its looking a bit sorry for itself.
  3. Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390
    #3
    must be the only job ive never done now.

    Calipers are still on mate, only noticed it was leaking today at the mot. Its not a lot, just weeping so think its maybe just pumped the seal when I wound the piston back in to replace the discs/pads recently.
  4. Established Member Joined: Jan 2009 killin,perthshire Posts: 1561 Audi a3 1.8sport,kawasaki zx9r c2,Yamaha R1 track
    #4
    Did it pass?
  5. Saxperience Post Whore Joined: Dec 2002 United Kingdom Posts: 8390
    #5
    Apart from the weeping piston seal, yeah. Needs new top mount bearings too, but I already have a pair of them to go, qnd theyre not a fail anyway, just noisy.

    Got the new seats fitted. Theyre fucking awesome, so comfy. Plus they dont sit too high or low, just bang on.
  6. Established Member Joined: Jan 2009 killin,perthshire Posts: 1561 Audi a3 1.8sport,kawasaki zx9r c2,Yamaha R1 track
    #6
    That's good,bang on then....did you get them fitted easy enough?

    Put that wheel on today and it looks the part,well chuffed
  7. Frequent Poster Joined: Dec 2006 London, England Posts: 734 Saxo VTS, Audi A6 Avant Quattro.
    #7
    Piston seals aren't much of an issue, however like anything it helps to have the right kit.

    Air through the caliper will push the piston out, check the piston for wear / pitting and replace the seal, use plenty of brake fluid or red rubber grease. There's plenty of guides around.
  8. Saxperience Post Whore Joined: Jul 2010 Morley, Leeds Posts: 8469 Civic ep3 type r powered by TDI NORTH
    #8
    cheaper quicker and easier to get a re con caliper already done. I got 2 for wassy last year at £35 each,