It may be that the grease inside the wiper motor and wheel boxes has solidified
over the years and is creating too much drag on the moving bits. It isn't
terribly difficult to clean them up and renew the grease. Rain-X on the
windshield might help.
~Jerry
> I'm in the process of getting my '70 roadster back on the road after a
> two-year absence therefrom.
>
> This morning was to have been the first drive in the rain; the wipers
> weren't in the mood.
>
> When I hit the switch, they all went up -- and stayed there. The wiper
> motor made a few clicking sounds, but the wipers stayed in their fully
> extended position.
>
> I lifted the blades off the glass, and the motor would again move
> freely, but the added drag of even one blade on the glass stopped it
> cold, and started the clicking sounds again.
>
> I understand the basic workings of the wiper motor, but I'm not sure
> where to start with this. What's the basic problem here? And more
> importantly, what's the solution?
>
> Many thanks,
> Matt
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