Cleaning the motor and painting up the brackets on the wiper motor to see if I can fit to the car and if anything in the way I'm adding might hit it.
Question: Which 2 wires out of the motor are power. One is for park, but not sure. I think the double connector is 12V+.
Tossing a few pics up too
View attachment 15678
View attachment 15679
View attachment 15680
View attachment 15681
View attachment 15682
View attachment 15683
View attachment 15684
View attachment 15685
That's NOT how the motor was originally wired. The 6WA motor is a 2 speed unit. There are three wires coming out of the motor, plus a ground wire attached to the base of the motor which is connected to the mounting bracket. The motor is supplied voltage (positive) constantly as long as the key is in the on position. The speed wires (red/green and brown) work by being grounded individually for fast, and combined for slow. The wiper switch is the same part as the headlight switch. the first "on" position is slow, the second on position is fast. so when the first is selected both the red/grn and brown wires are switched to ground, the second position only energized the red/grn wire for fast.
when bench testing the wiper motor, connect a wire from the ground (black wire) to the negative terminal of a battery, then connect a jumper from the green wire to the positive terminal of a battery. to test "fast" speed touch the red/green wire to the negative terminal of the battery. To test slow, combine the red/green
and brown and touch to the negative terminal of the battery.
In order for the motor to work correctly and self park, these are the proper connections
Green to fuse box (through the wiring harness)
Red/green tracer (fast speed) connects to wiper switch through a 2 wire subharness
Brown (slow speed) the other wire in the 2-wire subharness
Black on body of wiper to wiper bracket
The wiper motor
must have the black wiper "jumper wire" connected to the mounting bracket or the wiper motor will not function. This is because the wiper motor has rubber mounts which will isolate it from grounding. These were there to insulate the wiper motor from the car to eliminate noise/vibration
There is a ground wire connected to the wiper switch to the body to complete the circuit.
It is a peculiarity of Lucas wiper motors that they have a constant power and ground connection, this is so they can self park once the switch is put in the "off" position. the other wires coming out of the motors are basically interrupted ground connections. internally, under the park adjust cap is another interruptable ground in the form of a sprung brass contact that allows the circuit to complete when the switch is turned off. It has a 120 degree arced brass contact plate and the motor will run until the spring connector rotates past the contact plate.