Seized rear break



  • ok, i have had a rumble in my break pedal for a long time now, i put this down to a warped disk, but looking over the car today i have 3 lovely shiny disks and 1 that looks like a mouse has been chewing through it! i am guessing the caliper is stuck/seized but please note, the car still breaks strait, it does not pull to one side under any type of breaking! is it possible that the disk is just fooked and not working as it should or is this signs of a sticky caliper. ABS is kicking in rather early still (better than it was but still too early) thanks guys



  • sounds like a sezied caliper, the design for the sliders on these are crap and the bar gets water in it and rusts until its solid
    Need to take it apart and clean it up and sand the slider down to remove all rust and get loads of copper grease on it, I expect the rubber boot on it is knackered too but they are quite pricey and hard to find
    reghular greasing is only way round on this problem and if one has seized you now need to check all of them as the front tend to work fione on the outside and not touch on the inside



  • cheers mate, will have a look at that when i got the time. :)



  • sorry dj, but DO NOT EVER PUT COPPER GREASE INSIDE A CALIPER.

    EVER!

    You must only ever ever use the specifically designed red rubber grease. Copper grease will cause you to have an accident eventually, itll also contaminate your entire brake system.

    Copper grease is great, but its only use is for putting onto nuts and bolts, thats it, its an anti seize compound, not a friction reducer. It also causes rubber to swell. So over time, your brake piston seals will swell slightly (but visibly) and will lock your brakes on, first hand experience of that when some donkey put it on my motorbike a few weeks before I bought it. Since itll dilute into the brake fluid, it can also work its way back up to the master cylinder/brake servo.

    When your toying with brakes, dont scrimp on anything, buy the best you can reasonably afford, at the end of the day, if it all goes pear shaped, your counting on them to stop you from hitting something.

    Dan, if your broke, chuck me a couple of quid for postage and you can finish off this tub I got, probably about 30-40ml left in it, enough to do about 8-10 calipers



  • cheers mate, i would but the paypal account was my girlfriends and we aint together anymore, i only have a basic bank account so cant set up another one. i dont know why this is but for some reason they wont let me set up paypal or ebay :( shame as there is a few things i want atm, but then again, money helps when you wanna buy things haha



  • pm'ed



  • @b482f8b17f=Jesta:

    sorry dj, but DO NOT EVER PUT COPPER GREASE INSIDE A CALIPER.

    EVER!

    You must only ever ever use the specifically designed red rubber grease. Copper grease will cause you to have an accident eventually, itll also contaminate your entire brake system.

    Copper grease is great, but its only use is for putting onto nuts and bolts, thats it, its an anti seize compound, not a friction reducer. It also causes rubber to swell. So over time, your brake piston seals will swell slightly (but visibly) and will lock your brakes on, first hand experience of that when some donkey put it on my motorbike a few weeks before I bought it. Since itll dilute into the brake fluid, it can also work its way back up to the master cylinder/brake servo.

    When your toying with brakes, dont scrimp on anything, buy the best you can reasonably afford, at the end of the day, if it all goes pear shaped, your counting on them to stop you from hitting something.

    Dan, if your broke, chuck me a couple of quid for postage and you can finish off this tub I got, probably about 30-40ml left in it, enough to do about 8-10 calipers

    Coppeslip is fine to use on the backs off brake pads sparingly as an anti squeal agent, just dont let it contaminate the seal and your fine.



  • Yeah, thats fine, DJ is on about blathering the inside of the calipers with it :shock:



  • Some people do use CG on slider pins though as you might assume the boot is made from nitrile so resistant?! Silicone grease would probably be better though for slider pins, or red rubber grease as said.

    or you could save yourself some bother and get a recon for 60 quid…



  • Its ok to use it anywhere where theres no rubber, I wouldnt use it on a slider as thats got a rubber boot on it, though as you say, that could be nitrile and Ive no idea if thats safe with CG, for my own piece of mind I wouldnt, also CG gets really thick with age so might impede the travel and would slowly abrade the slider since its metal to metal particle, high temp silicone grease would be fine though. Ive got some nitrile medical gloves, will blob a bit of CG on and see what happens over night.

    Dans a bit low on funds so £120 for a pair is gonna be out of the question, plus theres always the proud feeling of doing these things yourself :)


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