IZwack
Moderator Emeritus
- Joined
- February 5, 2003
- Messages
- 21,532
- Reaction score
- 50
- City, State
- Germantown, MD
- Year, Model & Trim Level
- 1998 Ford Explorer
This odd thing came today -- it's from an 82 Buick LeSabre and is I think called a "Powermaster I". It doesn't have the big pneumatic dome thing that most brake master cylinders use for boost. Instead, it has its own electric motor that creates pressure in the little globe on the side. I'll probably end up unbolting the motor and mounting it on the side instead. But besides not having the big dome, another advantage it has is being able to create boost even when the engine is dead.
Wiring diagram for control is here: http://www.cameronsoftware.com/ev/images/PwrMstrWireDiagram.JPG
Wiring diagram for control is here: http://www.cameronsoftware.com/ev/images/PwrMstrWireDiagram.JPG