Re: wiper park
Have you still got the burnt out motor? It would be worth comparing the output shafts on the burnt out motor and the one you've fitted, to see if the flats on the output shaft are in the same place when the motor is in its park position. As David C says, it looks like the wiper motor wasn't in its park position when the wiper linkage was attached to it, but I thought there were only two flats on the motor output shaft, so you can only fit the linkage in two different positions. So it might be worth comparing the two motors to see if the flats on the shafts are in the same position when the motors are 'parked'.