Flip the 64 motor over....CAREFULLY remove the front greese cup....clean it and the shaft and pack the cup with a dab of grease and reinstall the cup. Now there is a water barrier between the elements and the forward bearing and it will pull in a bit of grease as needed....I'm sure a dollop of WD40 got into each front and rear bearing when I cleaned the 64 motor on the bench this morning.
Install the 64 motor in the 65 dash. I put a light coat of grease on the front of the motor to mate up to and seal against the goo that was left on the dashboard....The goo should be watertight as its still stuck to the dash, the dab of grease between the motor and the dashboard goo blob should help against moisture intrusion between motor and goo as the goo was no longer sticky on the motor side.
If you looked at your transmission position when you disassembled, put it back together in the same position, it'll either be right or be out 180....in this case, I am out 180 degrees and my wipers park in the vertical position....easy peasy, pull the transmission arm from the output shaft of the motor, rotate the motor by hand 180 degrees and reassemble...test...if its now correct, tighten the jamb nut that holds transmission arm to output shaft.
Wiper now parks in the proper position after making a smooth and jerk free sweep. New (old) motor runs much quieter. At this point I lubricated the transmission links with WD40 and shot some into the spuds that the wipers connect to.
Reassemble the cowl. Cycle the wipers, adjust the blades and arms as necessary so that park is fully down as low as they will go without contacting windshield rubber.
Go ride in the rain.
