<VV> wipers and other things

[James Davis]

The wiper motor is always powered through the fuse block.  The motor stops
when there is no ground.  When you turn the switch you ground the motor and
it runs.  The wiper also contains a separate self grounding cam that
grounds the motor for 340 degrees of rotation and the wiper motor stops
when it is ungrounded (parks). When you push the washer button you engage a
separate wiper grounding the washer cam in the washer that provides the
wiper motor ground for 700 degrees of rotation after the button is
released.  The problem is the switch is not grounding the motor. It could
be a bad switch, broken wire or corroded connection.
Jim Davis

On Wed, Jun 1, 2022 at 7:12 PM Ed Bittman via VirtualVairs <
virtualvairs at corvair.org> wrote:

> I have a buddy who recently purchased a pretty nice '64 coupe and has
> been sorting out things since he got it. It's a beautiful car lots of
> options. Today while driving he hit a small rain shower and the wipers
> did not work except if he used the washers? As he drove further,to get
> home, the tranny made a "banging" sound in only 4th gear? Car ran fine
> enough to get home. What gives? Ed
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