YupI'mFrustrated

The bleed valve passages are diagonal to the top of the piston bores. I went back and rechecked every connection I touched and found a slight leak in a hard line connection. I tightened it up and bled again and the piston finally engaged. After bleeding it though, I pulled the e-brake and could still spin the rotor with some effort. I pulled the caliper off and bled it with the bleeder screw facing straight up and problem solved! Thank you! I never would have thought of bleeding them like that!

I just finished the rear disk conversion on my 71 240z. I am running 85 Maxima calipers/pads and 82 280zx rotors. Everything fits great and looks fantastic. But then I started bleeding them....I had to replace a hard line that ran from the soft brake tubing to the rear "T" so I knew that there was plenty of air in the lines. I have been bleeding for over an hour and used almost a full liter of brake fluid between both rears and no air is coming out anymore (I bottle bled and vacuum bled). The piston in both calipers won't engage the pads. With the brake pedal fully compressed and the e-brake on, both rotors still spin freely. I have pulled the caliper back off and confirmed that the piston is not pushing out when the brake pedal is pressed. I have a TON of pedal play but figured that was from the front brakes (pulled the calipers off to paint them and haven't bled the lines yet). What am I missing here? Any/all help would be extremely appreciated.