new brake lines, pedal super spongy?
so i bought myself some new braided brake lines, thought i'd install the rears first since somethings a bit funky with my new rotors on the front so i can't fit them and the calipers yet
got the old rear lines off and installed the new ones on no problems, time to bleed all 4 corners no problems, bled with the one-man-bleed-kit and no signs of air after about 10-15 pumps per corner
get around to all 4 and seem to be bleeding fine, tighten all the nipples test the pedal again. solid, sweet!
think maybe i'll take it out for a test drive, so i start the car and pump the pedal a few times to get fluids going and make sure the brakes actually work.
now here's the kicker, pedal sinks in til its about 1.5 inches from the floor then slowly sinks to the bottom eventually.
okay fair enough might be more air in there that i didn't bleed out properly.
so i bleed the brakes again and check again that all my bolts and connectors are tight and aren't leaking fluids, all check.
finish the bleed on all 4's and drop it down again and start it up, same thing.
am i doing something wrong here? running all stock ek4 calipers at the moment with a itr booster/master cylinder
with the stock lines pedal pressure and braking were fine, with just the rears having the braided hose it would just sink to the floor
didn't have time to fit the old ones back on since it was 4;30am already
is there a special procedure i'm missing? am i approaching this totally wrong? i would have thought it would be a straight swap of lines and a bleed but apparently its just not enough :(