Quote:
Originally Posted by ROLLGUY
I believe the pump in question is actually a pressure and vacuum pump that is for the locks only (doors, fuel door, trunk). These are on 124's, 201's and late 126's (probably others as well). The engine vac pump (or manifold on a gasser) supplies the vac for the brakes, climate control, and other vac needs under the hood.
EDIT: If you are planning to use this pump on a 123, you may have to change the vac pods in the locks. The pump only has one hose to each pod providing vac to lock, pressure to unlock. Each lock has a switch directing power to change the pump from pressure to vacuum.
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My plans were to tap directly into the vacuum resevoir. I was hoping this pump would stop once it reached a certain pressure. I have seen the pump I currently have in a bunch of cars at the JY. I would be happy if the pump drew a vacuum by an on-off switch. Since I am getting rid of vacuum assisted brakes, I dont think I need a lot of vacuum.