Stuck rear calipers - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Dream240 · 02-21-2010, 11:15 PM

Okay I did a search but not finding any help.

I just finished upgrading my rear brakes to the Q45 setup. I already have the Q45 fronts and a 17/16 BMC.

Everything worked fine before the rear upgrade, but now that I've bled the rears they won't disengage after I release the pedal! The calipers are both re-manufactured with fresh internals, and I've got brand new rotors with pads. Everything is greased with syl-glide, including the caliper slider pins.

What could be the problem? Maybe I need to adjust the brake pedal further out? I can feel about 1/4" free play in the pedal before it engages.

Any thoughts?

NINJASPY · 02-21-2010, 11:28 PM

so the brake pedal does not return (needs more bleeding)
or
the pistons in the caliper don't release?
or
the caliper don't release because of ebrake cable?

1/4inch for free play? sounds like air in the system, check for leaks if they are used calipers.

Dream240 · 02-22-2010, 08:19 AM

nevermind, I found the problem.

I had the e-brake pad mounting bracket tweaked so the the backside of the rotor was caught on it, so that when the tire was on, the car wouldn't move.

Thanks though, works fine now!!

02-21-2010, 11:15 PM	#1
Dream240 Nissanaholic! Join Date: Dec 2002 Location: Inland Empire, California Age: 46 Posts: 2,188 Trader Rating: (8) Feedback Score: 8 reviews	Stuck rear calipers Okay I did a search but not finding any help. I just finished upgrading my rear brakes to the Q45 setup. I already have the Q45 fronts and a 17/16 BMC. Everything worked fine before the rear upgrade, but now that I've bled the rears they won't disengage after I release the pedal! The calipers are both re-manufactured with fresh internals, and I've got brand new rotors with pads. Everything is greased with syl-glide, including the caliper slider pins. What could be the problem? Maybe I need to adjust the brake pedal further out? I can feel about 1/4" free play in the pedal before it engages. Any thoughts? __________________ Don't mess with my monkey...he's loaded.

02-22-2010, 08:19 AM	#3
Dream240 Nissanaholic! Join Date: Dec 2002 Location: Inland Empire, California Age: 46 Posts: 2,188 Trader Rating: (8) Feedback Score: 8 reviews	nevermind, I found the problem. I had the e-brake pad mounting bracket tweaked so the the backside of the rotor was caught on it, so that when the tire was on, the car wouldn't move. Thanks though, works fine now!! __________________ Don't mess with my monkey...he's loaded.

02-21-2010, 11:28 PM	#2
NINJASPY Zilvia FREAK! Join Date: Oct 2007 Location: So-cal Los Angeles 626 Age: 44 Posts: 1,009 Trader Rating: (13) Feedback Score: 13 reviews	so the brake pedal does not return (needs more bleeding) or the pistons in the caliper don't release? or the caliper don't release because of ebrake cable? 1/4inch for free play? sounds like air in the system, check for leaks if they are used calipers.