Wiper park position

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Khuotakharma

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Hello a-buddies.... can anyone out there tell me if this is a normal park position for a 70 Duster? Two speed wiper motor runs and functions properly wipers park in the same place every time. I cannot position the wiper arms any lower because when the wiper sequence is reinitiated the wipers move down from the park position before they begin to move up.
Already tried Kim, bruce, and d+m restorations.

Thanks

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Park cam in or on the drive motor is out of adjustment. Some are fairly easy to adjust but it is a touchy adjust. Just a little change makes significant difference. Post a pic of your motor.
 
RedFish said:
Park cam in or on the drive motor is out of adjustment. Some are fairly easy to adjust but it is a touchy adjust. Just a little change makes significant difference. Post a pic of your motor.
Click to expand...
Hi redfish....two speed non concealed. No cam. Only a detent on the output gear that opens the park circuit. That Gear is fixed to output shaft so there is no adjustment. Park switch is gapped per specs. It is frustrating because there is really no way to get it wrong from what I see.
Watching the linkage from the inside the motor simply parks before it reaches its furthest extension. So when it starts again the wipers move to that furthest point (down the windscreen ) before starting up again. Its like the the bump on the output gear that opens the park switch needs to be moved forward just a little to have it park a second later. That's silly though. It worked right from the factory at some point.

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Are the wipers getting full sweep? When you start them, how far down do they drop? Dont want them coming down to the paint.
 
Thats different from the off set motor. There isn't a positive stop in any of them. I can loosen 3 small screws and change the switch position by rotating the plate that switch is mounted on. For yours, I can only suggest Feck the spec. Lessen the switch gap so the motor runs a split second longer. We dont know exactly how much run on after the switch opened there was when everything was new. Binding in your wiper pivots may be preventing that original split second run on.
 
RedFish said:
Thats different from the off set motor. There isn't a positive stop in any of them. I can loosen 3 small screws and change the switch position by rotating the plate that switch is mounted on. For yours, I can only suggest Feck the spec. Lessen the switch gap so the motor runs a split second longer. We dont know exactly how much run on after the switch opened there was when everything was new. Binding in your wiper pivots may be preventing that original split second run on.
Click to expand...

Hello redfish.... the gap I referred two is to the ground contact to shunt the windings and stop the motor. Park contact is normally closed so the only way to adjust timing would be to bend it away from the cam (little hump). I tried that with no luck. I did get it to work by grinding out the cam and fabricating a new one and relocating it on the gear. Works perfectly, but not very satisfying because I never did find out how it was designed to work from the factory.

Thanks for your help.

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Khuotakharma said:
Hello redfish.... the gap I referred two is to the ground contact to shunt the windings and stop the motor. Park contact is normally closed so the only way to adjust timing would be to bend it away from the cam (little hump). I tried that with no luck. I did get it to work by grinding out the cam and fabricating a new one and relocating it on the gear. Works perfectly, but not very satisfying because I never did find out how it was designed to work from the factory.

Thanks for your help.

View attachment 1715710672
Click to expand...
Yeah I've never been into this wiper motor. Maybe wear in bushings changed cam to switch relation? Glad you got it fixed though. Happy moparing
 
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