1974 LTD Windshield Wipers Won't Stop
 

1st problem I've had in a few years :)

I figured out how to get the wiper/lights panel off, got the w/w switch out, took it apart, it seems fine. I don't think the switch is the problem.
It has intermittent wipers if it matters, they just won't stop and park...

What's next ?

Try a temporary ground from the wiper motor to a good ground.

I will try that. I have also been reading over at the fordtruck forum that suggested the same thing, though I'm not 100& sure it wasn't a governor ground. I took the governor out today.
So I have to take the wipers off and get to the motor ? I have not done this b4 but...

Ok, I took off the wiper arms to lessen the issues, and ran one side of the usual dead-battery jumper cables to the battery ground, and the other end to the motor frame...still won't park or turn off. Isn't there a sensor in the motor which tells the motor that's it ok to park them then stop ? You just can't park them anywhere I'd guess. I sort of dread talking the motor out. If the motor never sees them in the ready-2-park position, they'd never run intermittently either I'll guess, so the governor never comes into play.

I don't know what I need to do to take the motor off but here goes !


I see 3 wires going to the motor, up near the top, red, grn and blk IIRC. More wires (2?) at the bottom of the motor...

When I came across that problem all I did was to run a wire from a good ground to the metal part of the wiper motor and it would park and stop. There is no need to get into any parts of the motor etc. Just give it a good ground and it should be OK. After you confirm that solves the problem you can make a more permanent repair.

Ok, here's what solved it folks...
I took the motor off, then apart, and there is a double-see-saw thing in there (under the cover where the gears are and the electrical connector) which acts as the 'Ready-2-park' sensor. Every time the motor goes around, there is a wheel which turns, and the see-saw in open circuited. Those 2 see-saws are made of somewhat springy copper plate, maybe 1/4" x 2" x some thickness. In the center of each plate is a square hump where the spring underneath lives. One end of one of those see saws was GONE. It had connected so many times, it just wore right thru. The end of it was shaped just exactly like the piece it was supposed to touch, but now it just spring right by the other contact. So, I turned them both around and swapped ends. now the 'bad' end is still in there, but not opening/closing with each rev of the motor. So I should be good for another 40 years ! I'll make another one of those when I find the right material. It's think enough a pair of strong scissors ought to do it. The hardest part will be making the hump where the spring resides.

Would be nice to be able to buy a couple of these from the folks that rebuild them.

Thx for all the suggestions, and getting me motivated :)

Good job, thanks for sharing the fix with us !

I have one from a 76 should fit its free
I live in n.b.

Do you mean you have the 2 contact parts from a motor ? They're about 1 1/2 long, 1/4 wide and thin metal with a hump in the middle. They're easy to get out of an old motor )if the motor is dead) just 4-5 screws, then 1 pin and the whole contact thing comes apart.
If you want to mail those 2 little parts that would be great. Can we PM folks here ?

Yes mikey i do have them [ i dont throw noting away] and i can send them to you pm me