88mjgilley Posted March 11, 2013 Posted March 11, 2013 I just lifted, and axle swapped my MJ last night. Ever since then i can not get any Brakes. I have replaced all the Rubber lines, Master Cylinder, eliminated the Load sensing valve. I have attempted to Vac Bleed them, Pump bleed, and drip bleed. It seems like nothing that i Have done has seemed to help. I even Removed the prop. valve and put a T in the for the fronts, and hooked the rear line directly directly into the master cylinder. At this point i really can not figure out what else to do. I am going to put another set of calipers on it tomorrow, and if that doesn't help i am planing on replacing all the steel lines, even tho i don't have any leaks any where. Any help or advice would be greatly appreciated.
Jakeman17 Posted March 11, 2013 Posted March 11, 2013 not trying to insult or anything but..... did you add fluid? No sign of leaks?Bench blead the master?Rubber hoses pinched?
jimoshel Posted March 11, 2013 Posted March 11, 2013 Are you getting any fluid from the MC? Loosen the line coming off the MC. have someone push the brake pedal. Fluid should show. If not it's the MC. If it does then go to each of the wheel cylinders. Same procedure.
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 i get fluid when bleeding, if i pump the hell out of the pedal it does get stiff but as soon as you let off for a second and hit it again it goes straight back to the floor.
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 i have went threw all most 2 gallons of brake fluid trying all the different ways off bleeding, and eliminating different things as a test
Jakeman17 Posted March 11, 2013 Posted March 11, 2013 sounds like theres a leak.IF you hold pressure on pedal does it slowly drop down or stay hard?
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 it will stay hard i have been over damn near every inch of brake line looking for leaks, and adjusted the rear shoes to where they were snug on the drum
87manche1 Posted March 11, 2013 Posted March 11, 2013 Tell us ur bleeding procedure i think somethings up.
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 ive drove it a little you can slightly feal them grab but its not enough to stop with out pumping the hell out of them. And Calipers upside down?
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 i have bled them with vac pump, Drip bled, and pumping pedal. Always starting from the Bleeding sequence is RR,LR,RF,LF every time. I have never had a issue with any of the other jeeps Ive built in the past with the brakes not bleeding normally 2-3 times cracking them open per wheel and there good i really just can't figure this thing out.
87manche1 Posted March 11, 2013 Posted March 11, 2013 My procedure 2 guys. 1 pumps brakes 3 times and holds while holding guy 2 opens bleeder and closes repeat til no air comes out work furthest first. 1 guy fill container half way with brake fluid open bleeder put hose on bleeder and other end submerged in container and pump away slowly I like the 2 man more accurate as 1 man job u can't see air..
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 ya all the pump bleeding was done 2man as you said
ParadiseMJ Posted March 11, 2013 Posted March 11, 2013 And Calipers upside down? The calipers are side specific. They'll fit fine on the wrong side. The bleeders need to be on the TOP of the caliper...if they're not...you have them on the wrong side. They'll never bleed with the calipers on the wrong side. The bleeder screws need to be on the TOP of the caliper. Do over.
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 hmm i didn't know they were side specific i will defiantly check that tomorrow
87manche1 Posted March 11, 2013 Posted March 11, 2013 Bleeders actually bleeding? Ive had rubber hoses clogg and wouldnt relieve pressure never a no stop issue like this. Did u replace allot of line?
88mjgilley Posted March 11, 2013 Author Posted March 11, 2013 i replaced all the rubber lines this afternoon haven't replaced any steel lines yet tho
mvusse Posted March 11, 2013 Posted March 11, 2013 cherokee_chief, on 10 Mar 2013 - 23:34, said: are ur calipers on upside down? This. If the bleed screw is on the bottom you will never get the air out.
88mjgilley Posted March 12, 2013 Author Posted March 12, 2013 there good now and yes my dumb a** put the calipers on the reverse side.... all that wasted time and money that could have went to something else on my build :( thats For the help once again guys
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