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View Full Version : S14 New Pads wont fit Caliper. How do I compress caliper piston!?


jdhariwal
11-11-2011, 07:12 PM
Been trying for the past hour to get my caliper on. Just put on some new pads because my other ones were grinding. From the look of it, the old ones are OEM pads, so I dont think the previous owner ever changed the pads. The new ones are obviously much thicker, so I have to compress the caliper piston. It hasn't moved at all. I tried using huge pliers to push them in, also tried to use needle nose pliers because some people said you have to twist them, but I can't get a grip on it with those pliers. I took off the brake fluid cap to release some pressure, but that didnt work either. I have to do this right now because I have work in the morning, and am unable to get a c-clamp from somebody (and according to other threads, c-clamps dont work very well either)

How the hell do I compress the piston back in!?!???

Agamemnon
11-11-2011, 07:20 PM
Is this for the front or rears?

The fronts compress back. Use some channel lock pliers to compress the piston back in.

The rears need to be spun back in. You can use needel nose pliers, but it's best to use a caliper piston tool.
http://image.superstreetonline.com/f/9520063/130_22_z+acura_rsx_s_brake_install+compress_piston .jpg

jdhariwal
11-11-2011, 07:22 PM
Its for the rear. Also, the boot has a little tear in it, not sure if thats a big deal. I guess I'm gonna run to Kragen and grab that tool.

DennisC
11-12-2011, 01:26 AM
If the rubber boot has a tear, it would be a good idea to get the rebuild kit too to replace the seal or else dirt/dust may get into the caliper.

trsebert
11-14-2011, 06:52 PM
yougoogle take a set of google channel locks and google grab the edge of thegoogle caliper and the edge of the piston and google squeeze.

This is definitely something I think we all can agree that you could have googled first.

silver350z05rb
11-14-2011, 07:00 PM
Sometimes because theyre old,they get stuck and you have to summen your inner God strenght,or call your neighbor who is a bodybulider

rcdad123
11-14-2011, 10:06 PM
if the rotors are really thin and the pads are down to metal, the piston might have gotten pushed out too far. so far that the o ring seal on the piston came out. if this is the case, you might have to completely remove the piston out and realign it perfectly to go back in. loosen the bleeder screw to make it easier. if there is a lot of dirt in the piston and caliper, you might as well rebuild it. rebuild kits come with new 0 ring and boot

jr_ss
11-15-2011, 04:25 AM
The rears need to be "threaded" back in due to the e-brake assembly integrated into the caliper.