Power Brakes

I put power brake unit with all new lines all new drum brake components now can't get it to bleed not even a drop of fluid what can be wrong or what to try

 

Lots of air in the system or perhaps brake pedal pushrod not stroking the master cylinder property?
Was the master assembly bench bled?
Additional details?

 

Was bench bled everything new maybe power master cylinder is for disc/drum and I'm running drum/drum ?

 

Try a vacuum bleeder. If all the lines were empty it’s hard to push the fluid down the lines with the master. I’ve had decent luck just leaving the bleeders open and letting gravity and time get fluid down the lines.

 

I agree with Jeff......... Leave them all open & check for drips in the morning.
....Richie

 

Remember, a power booster with no vacuum creates a very hard pedal.
Bench bleed the MC first. That will tell you if there is a problem there.
Mount the MC and with the fittings loose, try to push some fluid. If it won't bleed, Start the motor and try again. If it still doesn't bleed, then you have an issue with the power booster or the MC is wrong.