I got into the wiper motor yesterday, and that endeavor was a bust. I'll need some professional help there. FWIW, that has been suggested to me more than a few times prior
Here is what I did rebuilding one of the headlight motors. More often than not, the grease in them gets so gummed up, electrically they are fine. Just a good cleaning and reassembly is all that is needed. I keep the gears in stock, as sometimes they have a section that gets worn and can bind up a little bit.
Some time in the ultrasonic cleaner with Purple Power (I left the field housing alone to preserve the ink stamp). Here is the old gear (left) compared to the new gear
Perfect date for a January 66 car
And reassemble with white lithium grease
As mentioned before, the car is a New York car. What history I can put together this far, the car was in NY until 1995. The car had received a Bloomington Survivor Award in 1993 on all parts of the car with the exception of the chassis. Certainly, that program has become much more stringent since then. Regardless, I busted out the Go-Jo to start soaking, degreasing and cleaning the chassis.
A few before pics. The chassis is VERY solid, just not a California car.
And the first soak......