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View Full Version : Brake Caliper Problem (Emergency)


2blessedalero
09-20-2009, 05:29 PM
Today I tried to change my brake pads but when I tried to use a c-clamp to push the piston back, it won't go anywhere. After riding for a long time with no brake pads I think I over extended my piston in my caliper. What do I need to do?

[ion] C2
09-20-2009, 05:36 PM
did you take the cap off the brake fluid reservoir

2blessedalero
09-20-2009, 05:41 PM
Yes I took it off. What else could it be?

Nate's Alero
09-20-2009, 05:43 PM
hold on, you drove with NO BRAKE PADS!?!?

Group Faceplam!!!!!


anyway, WRENCH that C Clamp down

[ion] C2
09-20-2009, 05:51 PM
he means really really worn down pads...

bkathsalero
09-20-2009, 06:05 PM
try and crack the bleeder it will make it alot easier

freeze12
09-20-2009, 06:13 PM
Probably need new calipers.

-Alero-
09-20-2009, 06:38 PM
also try releasing your brak booster line, it also holds alot of pressure in the master cylinder.

and yes old calipers put up a fight. i use a wood block and a metal c clamp and go really slow.

but if all else fails you can rebleed and remove the caliper and exchange it for a new one at autozone for 30-40$ they are cheap because....they are cheap

A57
09-20-2009, 07:13 PM
^^^^ there you go its alot easyer to replace than fight a bad caliper..make sure to grease the bolt pins to...

Afugy
09-20-2009, 07:27 PM
And when you get new calipers get a Disc brake pad spreader, its WAY better then using a c-clamp. Its only 8$ and can save you from fucking up caliper pistons, even though you piston was most likely fucked before you used the c-clamp.

http://www.autozone.com/autozone/catalog/accessories/accProductDetails.jsp?displayName=BrakeTool&itemId=1849-10&navValue=101849&parentId=6-10&productId=141493&fromString=&itemIdentifier=141493_0_0_&filterByKeyWord=&categoryNValue=&store=779&skuDisplayName=Discbrakepadspreader&categoryDisplayName=&_requestid=1034254

http://ep.yimg.com/ca/I/yhst-4829792992329_2071_72178324

2blessedalero
09-20-2009, 07:54 PM
I took off the brake line and used a c-clamp and finally got it back on! Thank you Jesus! But now when I press the pedal, I have to go all the way to the floor. I think I have air in the line. What do I do?

[ion] C2
09-20-2009, 07:58 PM
you have to press the pedal up and down a bit before you drive it for the first time and then it'll be normal

Afugy
09-20-2009, 07:59 PM
http://www.youtube.com/watch?v=Hf1iPbeg778

If you did remove the brake line, you should bleed the brakes from the caliper you removed the brake line from, if you still are not happy bleed all the brakes.


Warning: if you had to use to much pressure using the c-clamp your piston and or piston wall of the caliper are screwed and is likely to jam on you again. So it would still be a good idea to change the caliper.