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EFV-8 Club Forum / General Mercury Discussion / Rear window motor test - 4 wire motor

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Posted By Discussion Topic: Rear window motor test - 4 wire motor -- page: 1 2

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TomO
02-03-2014 @ 8:01 AM
Senior
Posts: 7244
Joined: Oct 2009
          
That is because you don't have to do any more.


Tom

Merc Cruzer
02-02-2014 @ 8:22 AM
Member
Posts: 66
Joined: Nov 2013
          
One final update. The motor is back together, and runs but slowly. Even with all the cleaning, the disassembly and the reassembly, the new parts, brush holders (they are NOS and are made from 60 year old plastic), there is still an issue. One last thought, what if I turn the back cover 180 degrees....well as it turns out that is what I probably should have done first. It appears that the back cover was slightly off center in one direction and merely turning it 180 degrees made all the difference in the world. Why is it always the last thing you try that works?

This message was edited by Merc Cruzer on 2-2-14 @ 11:44 AM

Merc Cruzer
02-02-2014 @ 6:02 AM
Member
Posts: 66
Joined: Nov 2013
          
Redmond rear window motor

Merc Cruzer
02-02-2014 @ 6:01 AM
Member
Posts: 66
Joined: Nov 2013
          
Motor at issue

TomO
02-01-2014 @ 1:09 PM
Senior
Posts: 7244
Joined: Oct 2009
          
Corrected attachment.

Tom

TomO
02-01-2014 @ 9:34 AM
Senior
Posts: 7244
Joined: Oct 2009
          
Here is a corrected way to wire the dc motors used in window motors.

Tom

This message was edited by TomO on 2-1-14 @ 1:06 PM

TomO
01-29-2014 @ 4:22 PM
Senior
Posts: 7244
Joined: Oct 2009
          
Nice car, I love the 53 Mercury. It was the best looking of them all. It was also my honeymoon car.

Tom

Merc Cruzer
01-29-2014 @ 7:59 AM
Member
Posts: 66
Joined: Nov 2013
          
I have a 1953 Mercury Convertible.

This message was edited by Merc Cruzer on 1-29-14 @ 8:00 AM

Merc Cruzer
01-29-2014 @ 7:49 AM
Member
Posts: 66
Joined: Nov 2013
          
Roy:

The motor is not a permanent magnet motor and is not polarized. I must have had a brain fart when I typed in the wiring. You got the correct response, a spark, with that wiring.

The motor is a series wound motor. This means that the field is in series with the brush. The configuration that I assumed that you have is that the yellow and red leads are the field leads and that the green and black are the brush leads. Try wiring it this way:

first way
b = +
r = -
g + Y

second way reverse direction
b = +
y = -
g + r

Tom


Tom:

You are correct. I can not thank you enough.

Thanks again,

Roy

This message was edited by Merc Cruzer on 2-1-14 @ 8:30 PM

TomO
01-29-2014 @ 6:51 AM
Senior
Posts: 7244
Joined: Oct 2009
          
Try swapping the yellow and red wires. That should reverse the motor.

What year Mercury are you working on?

Tom

This message was edited by TomO on 1-29-14 @ 6:52 AM

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