Adjusting wiper motor to "park"

["Sam Marble" <samncyna@comcast.net>]

Listers:
I was checking out the operation of the windshield wipers and noticed
that they seem to want to park to the right (passenger side). I think
they need to park to the left.
It looks almost impossible to loosen all 4 screws that secure the top
plate to the motor in order to adjust the park position. Has anyone
had success doing this in the car ? Any tricks ?
Sam BN4