Yes the pedal ajustment can cause the brakes to be slightly applied. If all the brakes are locking up the residual valvein the master cylinder may be bad and if it was cleaned with mineral spirits it maybe toast-- mineral sprits can be used to clean only the metal parts then air dried completely before assembly.I use clean brake fluid to clean any rubber parts and as a lubricate during assembly. Thought I might mention, I have found a hand vacumn pump to be one of the best ways to bleed a system and you can do it by yourself.Paul
