Caliper Help!

[JWalk1818]

Well I posted this on the blaster side but didint get any responses. Kinda called myself a burnout today, duh there bashee brakes lol!

I took stock blaster spindals and made brackets to mount the brake calipers and they centered correctly but when i bleed the brakes and puched the caliper, they locked great. But they stay tight they dont release much. Anyone got any ideas, is there an adjustment on the celiper?

[Kane]

With a handmade set-up it's kind of hard to be certain. A few things to look for are making sure the calipers can float on the mounting pins/bolts. The pads need to be able to move freely on the mounting pins. The pistons could have dirt under the rubber skirt. As well, when mounted with new pads, the caliper doesnt want to be centered. It needs to move from the wheel toward the spindle as the pads wear. Alignment of the mount can affect the brakes too. A slight angle in the horizontal will cause soft mushy brakes that won't lock, a slight angle in the vertical will cause the the brakes to stick. One of the most common reasons for reasons for sticking calipers is grime, goo, and crap stuck to the sides of the pistons. If you honestly believe that you did a good job on the brackets, I'd start by cleaning the calipers inside and out, I.E. rebuild them.

[JWalk1818]

Thanks for the help......I havnt had any time to work on them due to work lol! ton ill make sure i take them apart and clean them really good. My father seems to think its ok he says if they go back much you would have to pump them to get them to work.

[Kane]

There are no springs returning a caliper's piston to a preset position. Once you've pumped up a brake the piston stays in that position until an outside force or internal fluid pressure moves it. If properly alligned, the caliper does not require additional pumping as the pads are so close to the disc. The mounting pins on the caliper position the caliper to balance the pressing force equally between the brake pads. Additional pumping is only needed when allignment is off or the master cylinder is weak or insufficient to the task.

"My father seems to think its ok he says if they go back much you would have to pump them to get them to work."

I'm not sure what you mean by that.

[JWalk1818]

Basically same thing your saying if the caliper moves in then all the way back out you would have pump it each time just get it to work

[Kane]

You're not making much sense here. Theres nothing to move the caliper BACK once it's been pumped up into place. The pressure when pumped grips the disc. When you let off, the pressure eases but the pads continue to sit at the face of the disc. There is no component that causes the caliper to move backwards away from the disc unless you have made somesuch or have a mount out of alignment. No rocket science here, thats how calipers work. Bicycles have springs that open their mechanical calipers, not ATV's.