I give up with brake bleeding

[JKnight]

I've personally encountered two bad Wilwood master cylinders (brand new) and heard of many others that just won't ever bleed out. All were exchanged for another that worked, but I have little confidence in them. I'd bet that a different MC with the same bench bleed process you used would get a good pedal.

[vstol]

Thanks this is my second MC from them. I will give it one more time

[JKnight]

Oh, geeze, didn't realize that. Was the first one bad as well? Similar issues?

[vstol]

The first one would not seal at the rear fittings and I went through 3 brake lines and still leaked (wept) at the fitting.

[vstol]

ok bled the heck out this MC and no air so I will reverse bleed the system tomorrow.

[carkrazy1987]

im going to buy stock in brake fluid. hopefully reverse bleeding it finally works. may have to go with a nice rusty gm master cylinder if it doesnt work.

[JKnight]

Well, sounds promising. I used a cheapo CPP master and was pleasantly shocked at how quickly the system bled out. Sounds like getting a master with no issues is going to be the key to your system working out.

[vstol]

Originally Posted by JKnight

Well, sounds promising. I used a cheapo CPP master and was pleasantly shocked at how quickly the system bled out. Sounds like getting a master with no issues is going to be the key to your system working out.

was it manual or assisted?

[JKnight]

I have power brakes, vacuum assisted. Bled using the old pump pump hold method, engine off obviously.

[GregWeld]

Originally Posted by vstol

Thanks this is my second MC from them. I will give it one more time

I didn't go back to read the whole thread but HOPE that you bench bleed these Masters before installing --- it's a critical step.