elite130

I was reading a few posts today about brake swaps and noticed in a few posts that a new master cylinder needs to be "bench bled". I just got my 5-lug/4-wheel disc brake swap done and I did not bench bleed my new '94 master cylinder. I was howeverable to bleed all the brake lines with no problems.

Am I ok not bench bleeding the new master cylinder, or should I take it off, bench bleed it, and re-bleed the system? Thoughts?

90_Mustang_GT

You should have bench bled it before you installed it, but since you already have it installed you should be ok. Its up to you if you want togo through and re-bleed everything.

HACKGT350

it must have taken you a long long time to bleed your brake system. bench bleeding saves you a lot of time then just bleeding the system. a lot of air gets stuck in the m/c and its just easier and more effecient to bench bleed it

p1bigun

are the brakes workin ? if so don't worry

95gtdrop

i made the same mistake in my 69. i simply bent up some old brake line and put them in the m/c outlets and bent them in a half circle shape putting the outlet into the reservoir, then filled up the m/c with fluid and pumped away.(not too hard though) and all the air came out.
does that make sense?

TTGreenSN95

if your brakes arent so good and you decide to bleed it you can do it on the car with a buddy pumping the brakes.
Ask me how I know go ahead ask me. lol

mjr46

you should always bench bleed the master cylinder..not doing such can trap air in the system and result in a spongy or low pedal..if however the pedal height and feel are solid then chalk it up as a learning experience