Aaron Posted February 2, 2011 Posted February 2, 2011 I think my rear brake is stuck on. I had to rock the bike back and forth to free it up last week and since then it's seemed like hard work walking the bike back out of the garage. When I got to work this morning i touched the rear disc and it was pretty hot so i think it's stuck on. It might also explain the cyclical squeak i hear at low speeds.It's my ER6. What's the solution? Mechanical or chemical or both? Cheers dudes. Quote
sparkeh9 Posted February 2, 2011 Posted February 2, 2011 My front brake on my GS125 did that, the pad was down to the metal and had started to ware the disc Quote
megawatt Posted February 2, 2011 Posted February 2, 2011 You need to remove pads, pump out pistons till s screwdriver gap clean pistons, push in, pump out a few times by hand. If too stiff, strip caliper, clean everything, fit new seals, apply red rubber grease to seals. Refit pistons and bleed em. Quote
Aaron Posted February 2, 2011 Author Posted February 2, 2011 Aww...man. That sounds like alot of effort! Quote
Martyc Posted February 2, 2011 Posted February 2, 2011 You might get away with taking the caliper off it's mounts, taking pads out, pushing the pistons out a bit and scrubbing them with brake cleaner and toothbrush, and maybe wire wool so they can slide in/out freely and see how you go. If they're still sticking or it's excessive corrosion it's most likely caliper refurb time or worst comes to worst new master cylinder. It could be a flexi brake hose collapsed internally and acting as a one way valve but it's unlikely (tends to happen on old cars, guess it could apply to bikes) Quote
megawatt Posted February 2, 2011 Posted February 2, 2011 Well you could pay a mechanic to do it for about £70, your choice. Not that difficult if you can use a spanner and a big screwdriver. If you don't do it , you risk destroying the disc and ending up with no rear brake. Your choice Quote
Martyc Posted February 3, 2011 Posted February 3, 2011 If you don't do it , you risk destroying the disc and ending up with no rear brake. Your choice Very good point- hopefully it won't happen when you need it-but I wouldn't wanna risk it. Get a Haynes manual, the procedure should be in there but even with basic mechanical knowledge it's quite simple when you take it apart. Or get a new/replacement caliper to pop on and refurb the old one in your own time (that's what I did and also how I found out how it worked/went together) Quote
megawatt Posted February 3, 2011 Posted February 3, 2011 Even better idea Marty You sort it quick, hopefully and you take yer time to learn how to do it properly and when you don't need it, put it on eBay for a profit. win, win Quote
Guest Posted February 3, 2011 Posted February 3, 2011 Aww...man. That sounds like alot of effort! Its not really, took me less than an hour to clean up and re grease both my front brakes on my ninja. I've done it before but only on the SV. Its easy peasy really. Quote
Martyc Posted February 3, 2011 Posted February 3, 2011 I've got 2 spare calipers for my bike (if you can call it that) waiting for refurb- the original that was on there and a supposedly good one off eBay that looked like it'd been at the bottom of the sea for 10 years! It was 3rd time lucky and now I'm trying to source parts to fix the other two. The pistons and fluid seals no problem, outer seals seem impossible to come by so far. Quote
megawatt Posted February 3, 2011 Posted February 3, 2011 Try a bearing supplier that does seals. Try to get some dimensions for them. Quote
Aaron Posted February 3, 2011 Author Posted February 3, 2011 I did get a haynes manual a while back when the front brake was squealing, but then my service was due and they did it for me. Guess i better start learning how all this stuff works! Tbh, it looked easy enough, BUT....... Aww...man. That sounds like alot of effort! Its not really, took me less than an hour to clean up and re grease both my front brakes on my ninja. I've done it before but only on the SV. Its easy peasy really. Yah, but I like doing all this stuff in the sunshine When it's cold like this I end up slicing my hands to ribbons without even realising. What I really need is a lottery win so i can get a house with the garage attached to the house. That'd be awesome Quote
megawatt Posted February 4, 2011 Posted February 4, 2011 Keep yaself warm and smile when you think how much money you'll be saving. Quote
Matt Strange Posted February 17, 2011 Posted February 17, 2011 Aww...man. That sounds like alot of effort!Not really, i had to do just that recently to get my bike through it's MOT & a rear master cylinder rebuild too. Took me a couple of hours, including bleeding out the brakes. Quote
Guest Posted February 18, 2011 Posted February 18, 2011 You need to remove pads, pump out pistons till s screwdriver gap clean pistons, push in, pump out a few times by hand. If too stiff, strip caliper, clean everything, fit new seals, apply red rubber grease to seals. Refit pistons and bleed em.It just so happens i am doing the same job on my front calipers, actually i am not finding it easy but i think i'll get there in the end.I was going to post a question about the pink solution but found some of the answer in this post.Do you only use the rubber grease on the piston seal or on the dust seal aswell? I'm thinking the road grime will stick to it. Quote
megawatt Posted February 18, 2011 Posted February 18, 2011 mainly inner brake seal , but a smear between the two will help Quote
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