Crap to Cream, Late MGB, how to bleed the dual brake line system correctly, don't forget the PDWA.

How to bleed the brakes correctly on a late MGB, it’s not the way you might think, it’s not the same as the usual way of doing things, complete reverse actually. Don't forget to disengage the "Pressure Differential Warning Actuator (PDWA)...... View on Specifically for the dual circuit brakes with the servo fitted to the pedal box.