Here are a couple of pages with a half dozen pictures of the motor when it is disassembled. The paddle or piston is a woven fabric that is impregnated with something that I haven’t been able to figure out what it is. Maybe graphite or maybe rubber, but it is the most critical part of the motor and it is what wears out and causes a vacuum leak. A vacuum device or system CANNOT have any leakage or it simply will not work properly. The system must be vacuum tight at all points, you can check this by using a hand vacuum pump.
http://www.pbase.com/dennygraham/ad_interior&page=2 http://www.pbase.com/dennygraham/ad_interior&page=3 The Special Screws:
http://www.pbase.com/dennygraham/image/118637544 I first loosen them with a pair of un-serrated duck-billed pliers that I have and I drilled out a piece of round stock and flattened the sides in a vice to fit the shape to spin them out the rest of the way.
You cannot get parts or gaskets for the Trico motors so use a lot of care when you separate the parts to save the original gaskets. About all you can do by taking the motor apart is to clean it up and re-lube the piston. Use white grease to lube the piston and don’t over do it.
I see that while I was typing this, that you have in all likelihood spoiled the gaskets so In the end, if you really want the motor to work as it did when it was new then spend the money and send it in to the only show in town, i.e., Ficken Wiper Service
http://www.wiperman.com/ they bought up all of the Trico parts in the country long ago and are the only ones that have the parts to rebuild the motors. And before someone asks, no, they do not sell parts, they only rebuild the motors.
Denny Graham
Sandwich, IL
