Following on from a grand idea seed in another thread, I bought a second push-pull headlight switch for my 62 moggy, and converted it to a combined wash/wipe action ( well, after the central locking brainstorm, I needed a little light relief!), first pull for the wipers, second pull for the wipers and washers together.
First I got rid of the twist-to-second pull function of the switch by chipping the bit of bakelite out of the side (not as nasty as it sounds) and re-profiling the other side of the slot with a cocktail stick and araldite to give a straight two position pull.
I then decided the second pull position (wash function) should be spring loaded, to return to the wipe-only function when you release it.
Out came an old distributor. The lighter of the two bob weight springs inside it is just the right tension and length for the job!
Not going into too much detail about this bit, if you are brave/foolish enough to play with the inside of a 50 year old switch, then you will work it out! Nothing a 2mm drill bit and a steady hand couldn't cope with!
One thing-the switch function for the wiper is in the earthy side of the circuit, so I took a handy bit of "live" power from the fuel pump to the washer motor "+ve" side, and wired the "-ve" side through the wiper/washer switch.
Now, back to the overdrive gearbox installation.....
