Help on brakes

I just replaced the 9" brakes on the front with the 11" brakes from my 77. New shoes and new 1 and 1/8" wheel cylinders. Bled the air out and have no front brakes. Seems like very little pressure while bleeding them. I have a dual resevoir master cylinder and still have rear brakes but the front brake won't move even with the drums off. Did my MC just go bad or is there something else?

 

If you were able to bleed the brakes, then the MC probably still pushes fluid through the lines like it should? I'm taking a guess at this here, but could the wheel cylinders be designed to work with a MC that has a larger bore size? The MC might just not be designed to push out enough fluid to move the larger wheel cylinders. I know with a hydraulic clutch set up, you have to match the slave cylinder and MC bore sizes, such as both 3/4" or whatever.

Another thing that's probably not an issue, but make sure you've adjusted the brake shoes out far enough to hit the drums.

Just some ideas, HTH.

 

I'm only gonna suggest this because of my disk setup problems last month. I have the factory dual M/C, from the factory the rear chamber was plumbed to the rear brakes and the front to the front when the disk were installed the rears worked and the disk did nothing, I swapped the lines and everything works fine now, the rear pushes a higher volume of fluid and the rear brake cylinders being smaller now need less. If yours are set up this way try using the rear reservoir of the cylinder to run the front brakes and vice versa, this is actually the way they are suppose to be.

 

Steve after you recommended this about a 1 1/2 months ago, I must say those things are worth there weight in gold.

 

I think I read those posts about which tank to plumb the lines to. My fronts are connected to the front chamber. I'll swap them tonite. Should I flush the MC while I have the lines off?