1930 Buick wiper switch

[tly410]

I have a 1930 Buick model 57 sedan. I can't figure out how to operate or "turn on" the windshield wiper switch. I've tried pulling out on the switch and it doesn't budge. I've tried turning the knob from side to side. When turned to the right I find it doesn't move. When turned to the left........ the knob and shaft unscrew from the switch housing. I wonder if the wiper switch operates by pulling out on the knob and maybe mine may just be stuck in the housing? I don't want to get too physical with it unless I know how it's suppose to work for fear of breaking something. I've talked with others who have a 1930 Buick, and found we all share the same problem. I'm sure someone out there must have a functioning switch and/or has some knowledge on how the switch should operate.

Any help you can provide is appreciated.

Thanks, Tim York BCA #32988

[50jetback]

If you are using the original vacuum wiper the dash switch is a simple valve to open/close the vacuum line. To open you should turn counter-clockwise and to close turn it clockwise.

BE CAREFULL - the body of the control unit is die cast material and with age it becomes fragile. I suggest you remove it from the dash first and use WD40 or similar to gently try to get the thread operating.