Compressing Rear Caliper?

[nsn240]

After leaving my left rear caliper hanging for a few days while a got new rear rotors... the piston has completely come out. I opened the bleed screw and got enough pressure out to get the pads off. I've tried turning the pistonf back in with needle nose pliers (another thread suggested this) but its ridiculously hard to turn them.

Should it be so tough to turn back in? or am a fucked and have to buy new rear calipers?

thanks

[aznpoopy]

its kind of normal for them to be ridiculously hard to turn in. you're fighting all the pressure in the hydraulic system. hopefully they aren't seized anyway.

i simply opened up the bleeder screw and let all the brake fluid out as i turned them. instead of pliers i used a brake socket cube and a very long ratchet (and a buddy to hold the caliper).

oh yeah, every little bit you turn, make sure you're not tweaking the rubber boot. if that rips, rebuild or new caliper. turn it a little and gently push the boot back into proper shape. needle nose pliers work well for this.

also, since i let out a ton of brake fluid, i had to do a full flush and bleed. that kind of goes without saying, but you never know who's reading these posts and i don't want to be responsible for some kid driving out there with no brake pressure.

[Ritz S14]

Push and turn really hard. Worse case, just get another caliper.

But to be on a safe side, I'd just get another one anyways.

[Phlip]

Go to advance auto or vatozone or whatever your local discount parts house is, get this guy:
http://www.partsamerica.com/product_images/AAP/APO/T71921.jpg
... push and turn at the same time, and if that doesn't work, remove and replace (or rebuild)

[Ritz S14]

Haha I like how that says "not for impact use".

Without that label, there'd be siezed calipers everywhere.. hahaha

[Phlip]

^^^ Just their way of not accepting responsibility for breaking the tool when someone puts the air to it.

For 10 bucks for the tool, I can't say I blame them.

[PoorMans180SX]

Use a C-clamp to compress the piston...easiest way ever, I do it all the time...

[reccakun08]

you cant use a c-clamp on the ones that need to be turned

[S14DB]

Rear calipers are notorious for ceasing. If you can't turn them in get new/rebuilt ones.

[Dutchmalmiss]

yeah it's c-clamp or monkey wrench for the front and needle nose for the rear

[s13silvia03]

http://www.zilvia.net/f/showthread.php?t=93089

[kazuo]

Rebuilding rears sucks.

Might as well buy rebuilt.

[S14DB]

Fronts are easy to rebuild. Just takes some patience and an air compressor.

Rears are a total PITA to take apart.