I cover everything in Teflon grease
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| Brake - Piston Help http://www.essexhertsmtb.co.uk/mountain-bike-kit-equipment/brake-piston-help-t497.html |
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| Author: | trax [ Wed Mar 16, 2011 11:09 am ] |
| Post subject: | Brake - Piston Help |
Attempted a brake bleed, which turned into an arse if a job when I found two pistons had seized. Sorted it and did the bleed, but wondering if I should have put some lube or oil on the pistons after cleaning them? If so, what's best to use? |
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| Author: | Brad [ Wed Mar 16, 2011 12:06 pm ] |
| Post subject: | Re: Brake - Piston Help |
I cover everything in Teflon grease
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| Author: | trax [ Wed Mar 16, 2011 2:01 pm ] |
| Post subject: | Re: Brake - Piston Help |
Your brakes never work and you also hit everything with a hammer 
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| Author: | Lawbags [ Wed Mar 16, 2011 5:48 pm ] |
| Post subject: | Re: Brake - Piston Help |
Make sure they are 100% clean too! |
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| Author: | trax [ Thu Mar 17, 2011 12:57 pm ] |
| Post subject: | Re: Brake - Piston Help |
To answer my own question, it seems the best thing to use as lube is the DOT fluid itself. Anything else can damage the seals. Mine should be well lubed then, as should the kitchen floor, frame, rotor, tyre.. 
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| Author: | Gturn [ Thu Mar 17, 2011 2:28 pm ] |
| Post subject: | Re: Brake - Piston Help |
Whenever you get DOT anywhere neutralise it with water straight away! Its lethal stuff, No lube just dot on the pistons would make sense if they have seen better days. But make sure its not enough that it'll get anywhere near the pads though. |
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| Author: | trax [ Thu Mar 17, 2011 5:03 pm ] |
| Post subject: | Brake - Piston Help |
The bike got a hose down after, but not immediately. Wasn't expecting the piston to fall out, so the DOT flood that followed wasn't planned. The pad then got a soaking later when I pumped the lever with the caliper syringe still in! Its a tough learning curve. |
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| Author: | Brad [ Thu Mar 17, 2011 5:13 pm ] |
| Post subject: | Re: Brake - Piston Help |
If you have wood flooring, brush it in and say you were "varnishing" the floor
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| Author: | Lawbags [ Mon Mar 21, 2011 10:51 am ] |
| Post subject: | Re: Brake - Piston Help |
Aye...brakefluid is fucker. DONT wipe it off wioth a cloth...,itll only make it worse. Use water to wash it off, |
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| Author: | trax [ Mon Mar 21, 2011 12:10 pm ] |
| Post subject: | Re: Brake - Piston Help |
I found that - a cloth just moves it around. Everything got a good hose down after I'd finished. After much trial and error and around 5 bleeds (due to various mistakes) I've got it down to under 20 mins now. I've also discovered that a pad soaked in brake fluid is essentially useless, except for using to spread the pistons or as a loud honking musical instrument! |
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| Author: | Brad [ Mon Mar 21, 2011 6:30 pm ] |
| Post subject: | Re: Brake - Piston Help |
My brakes need a bleed steve, seeing as now your pro at bleeding, fancy giving them ago
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| Author: | trax [ Mon Mar 21, 2011 7:11 pm ] |
| Post subject: | Brake - Piston Help |
Sure. I'm no expert at it, but I've tried yours and mine's 100 times better :p |
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| Author: | bicyclerider203 [ Sat Apr 02, 2011 11:26 am ] |
| Post subject: | Re: Brake - Piston Help |
trax wrote: Your brakes never work and you also hit everything with a hammer That's true brad |
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