Customs Electric wiper kit only covers 7" path - 53 GMC Pickup

I have a 53 GMC 5-Window (2 piece glass) LS Custom with Electric wipers.

The wipers do work but they barely cover about 7-10" of the window glass from Left to Right (MAX). Looks like they should be covering about 15"or so...

Is there an adjustment that fixes this issue ?
Has anyone else experienced this problem ?

Thanks in advance,
Mike,
North Texas

 

whose wiper kit?

 

It came with the truck. I'll crawl under and see if I can see any identifying marks.

 

I have a '54 3100 with electric wiper conversion and the blades are only 11" long, so compared to the
total glass area, I guess you could say it is small. Especially if you're comparing it to the new factory cars.

 

take pictures....

 

I have installed several , Newport Engineering , electric windshield wiper kits, on different model car's. I have almost every time had to adjust the coverage. With this brand , it is a very easy job to do.

 

Interesting...
How do you adjust coverage ?
Is there an adjustment on the Cam / Rotating Arm ?

Thanks in advance,
Mike

 

Newport wipers use a "Marine wiper" motor.
You can pull the cover off and change the "sweep" by moving the crank pin further out [or in] on the gear wheel.
You can also reverse the contact plate on the wheel, so it parks either left or right.