Sorry guys, I tried to merge those 2 threads and somehow I wiped them out when I did it! So here's the stuff I accidentally zapped.





This might help too, its for the 62 and older, but I'd bet they work the same as the above?

One of the problems in building a 59 thru early 60 Chevy is the wiper motor. Your project car usually comes with a motor and if that doesnt work you buy one off ebaY. You can always buy a $300 reconditioned motor that you know will work but whats the fun of that? Regardless of the source, the first thing you need to do is see if it works.

Here are directions on testing one of these (2-speed) motors out of the car. It an easily be done using your 12V battery charger. These motors are controlled using a circuit based on manipulating the grounding of a couple of terminals. Here is how to do it;

First make a couple of short lead wires by stripping both ends. Put one end of each wire through the two outside terminals of the plug on the motor. These are terminals 1& 3 shown in the diagram. Make a third such lead wire that is connected to the middle terminal 2.

Now hook your battery charger to the motor as follows; hook the positive clip on the charger to the lead on the center terminal. This is all time hot and is never disconnected. Next hook the long thin brass sheet metal ground lead that comes out of the motor body to the negative clamp on your battery charger. This is all-time ground and is never disconnected.

You are now ready to test the motor.

To simulate low speed, touch both outside leads from terminals 1 & 3 to the ground clamp on your charger. Motor should start and run.

To simulate high speed, disconnect the lead on outside terminal #3 and let it hang free. The motor should speed up noticeably.

Finally to park the motor, hook both leads from outside terminals to each outer but not to ground and the motor should run until the crank is to one side and stop. It should stop there every time.

If these things dont happen, you will need to open the unit and likely just clean up a couple contacts, make sure the brushes touch the commutator. These are really well made units and not a lot goes wrong. A lot of them dont work but it is usually a simple maintenance cause that is easily fixed.