Re: IML: wiring question

I believe that the case of the motor acts as a ground on these cars. If so the two wires coming from the motor are both "hot", and are what determines the direction.

Paul W.

-----Original Message-----
From: Stevan Miner
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Sun, 4 Jun 2006 07:13:39 -0500
Subject: Re: IML: wiring question

Hi Mike,
You can test the your window motors while in the car easy enough. There are two wires going to each motor. You'll need to jumper 12V to one and ground the other. I use a small lawn mower battery at my shop for testing purposes. This will make the motor travel either up or down provided the motor is OK. If you reverse the wires the motor should travel in the opposite direction. I have had success disassembling these motors and cleaning and lubing them to work.
Stevan Miner
Miner Auto Service
Winnebago, MN

----- Original Message -----
From: Michael Howlett
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Saturday, June 03, 2006 5:11 PM
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