Confused about wiring

[Zenfrogg]

Hello Everybody

Recently I was lucky enough to find a 1976 Mini Clubman really cheaply. It was pretty much a 'jigsaw puzzle', but that just added to the fun. A few months later, it is nearly ready to go back on the road, but there are a couple of things I need help with.
Firstly a problem with the lights. There are no park-lights only. With the switch on to the first (middle) position, there are park-lights and headlights, same with the switch on fully. Is this a problem with the (expensive) switch? I have stared at the schematic diagram for hours, and don't understand the problem.
Secondly, the car missing a windscreen washer bottle/motor. I have now installed one but cannot figure out how to wire the thing. I have traced the light green/black wire from the switch, but have no idea where the black wire has ended up. Can I add a wire from the washer motor to the switch, combine it with the existing black wire or would that be madness? Just to add to the confusion, a previous owner painted the engine bay and didn't cover the wiring!
All opinions on my current problems would be gratefully received.
Thanks.

[mab01uk]

This forum in mainly for New BMW MINI's so you would get a better response on a classic Mini forum like TMF linked below:
The Mini Forum (Powered by Invision Power Board)

I also have a classic Mini and have found the lucas lighting rocker switches can cause this lighting problem when worn inside.....so it sounds like you need a new switch.
I think the black wires on classic Mini's are for earth/ground circuit normally so you should be able to run a new wire with no problem but check as non-UK Mini's may be different spec! Incorrect wiring can cause shorts and fires!
(On New MINI's the earth/ground circuit is however brown!)

[Zenfrogg]

Hi mab01uk

Thanks for you advice and recommendation. I will try TMF.