Brakes bled and pedal goes to the floor but I do stop... sort of.

[bound4dixie]

I dont belive the master is shot, I belive its incorrect for the size of the wheel clys, plus I dont think it has residual press valves built in. A guage would be great to have, but they often have to be plumed in permanetly. I have one in my front system to show how much press I put before I lock the the lever loc. Not cheap either.
It seems to be a volume of fluid issue. At the bottom of the stroke of the master there is not enough fluid press against the wheel cyls and calipers to properly stop the truck.
The bore seems right, but not enough stroke.
Broncomatt

Yeah, like I said before, just trying to keep the discussion going so that chuzie can have some brakes before URE :xyxthumbs: I'm in no way saying that I'm an expert in any way :bdent:

So, if we believe that the volume of fluid is an issue, then you have to (A) increase the stroke or (B) use a bigger bore (I realize this will change the mechanical advantage too). Both of these will essentially increase the total displaced volume of fluid.

Since the rear shoes pull further away from the drums than do the pads from the rotor, would installing a residual valve on the rear drums not also reduce the amount of fluid required since you will have some fluid already in the rear wheel cylinders from a previous pedal press?

Chuzie, have you used a residual pressure valve at all yet or have you always ran without one?