It is not impossible for any new or rebuilt Mastercylinder to have a problem and not work right.

However, the Mastercylinder itself needs to be bled first (instructions and a Kit to do the bleeding usually come in the Box with the Mastercylinder) and then the system.

As far as makeing a Brake Power Bleeder. Except for the Cap on the Mastercylinder the rest of the Power Brake Bleeder could be used on other Vehicles.

I have owned Vehicles since 1968 and have only used a Power Brake Bleeder at one place where I worked. Meaning I have always managed to get the Brakes bled one way or another without the Pressure Bleeder.

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84 300D, 82 Volvo 244Gl Diesel