You should be able to apply power to the motor directly from a battery and make the motor run. The negative terminal of the battery should be connected to the door, or the case of the motor as a ground, and the positive should go to one of the leads. The thing you need to be careful of is that the battery may have gases present around the top. A spark can make it explode and cause personal injury. If the motors have been sitting for a very long time, there is a good chance that they are stuck. The shaft can rust and cause it not to move. You may want to attempt turning them by hand first. Since the window is half way up, which direction you go shouldn't make much difference. Have fun, but be careful, and be safe. As long as you don't hook things up very long if they don't run, I doubt that you can hurt the motors. They are not that fragile. Some window motors have a built in circiut breaker. A short or overheating the motor will activate it.
Paul W.
-----Original Message-----
From: Michael Howlett <collyman1@xxxxxxxxx>
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sat, 3 Jun 2006 15:11:04 -0700
Subject: IML: wiring question
Hi Everyone,
I have a question for the electrical experts out there.
I have the door panels off of my '57 and a couple of the windows are halfway down. (and have been that way for years)
I'd like to test the window motors, the connectors on the motor are fully exposed, so I'd like to put 12volts (a new car battery) to the motors and see if they will move the glass up or down.
The wiring from the doors to the dash is probably bad and needs to be re-done, and the switches may not be good either, so I want to put some power to the motors and see if they will move.
My question is: can I jump a couple of leads directly from the battery to the motors, or does the voltage/amperage need to be stepped down so that I dont FRY the motors ???
THANKS for your help.
-Mike in Oregon
Back to the Home of the Forward Look Network