Wiper motor wiring.

[FC Dave]

I have an electrical question. I have an electric switch in my 58 wagon for the wipers with 2 wires. On the ohm meter it is good. On the wiper motor ( not sure what model) I have 2 tabs for wires. One says Battery, the other, switch. I am wondering if someone could point me in the right direction as far as what goes where. There doesn't seem to be an earth point. Any combination I have done seems to power up the whole wiper motor, casing and all . Are these earthed through the body?  Thanks in advance, Dave.

[fcwrangler]

Dave, if it is an EK wiper motor there should be a thin copper strap on the wiper motor for the earth, from memory the 'B' goes to power the 'S' goes to the wiper switch and the switch has a power side as well. I'll check my old loom tomorrow as I still have it all connected from when I took it out of the car and let you know.
Jim

[fcwrangler]

Just put the dogs to bed and checked the wiring, it looks like the second wire from the switch went to earth not power.
Jim

[FC Dave]

Thanks for that info. A mate put the motor in, so I'm guessing he didn't have it earthed.

[mcl1959]

For simple single speed motors the circuit goes: battery - wiper motor - switch - earth.
However, once the switch is off the motor stops, hence an additional earth strap is added to allow the wipers to park once the switch is off.

Ken

[FC Dave]

Thankyou, I will give it a go on the weekend.