The POLARITY REVERSING SWITCH is a device intended to extend the life of the
points by changing the direction of the current through the points every
time the engine runs. How effective it was is questionable since it was
dropped from production in 1947. Few people even know what they are but
I've had a few old timers spot mine at shows and it's a great conversation
piece.
Your distributor has 2 insulated terminals to the points (1 to the arm, 1 to
the plate). The wire from the coil goes to the PR switch and a wire goes
from there to each of terminals. The points themselves are the same weather
you have a prs or not. Without the switch, the wire goes straight to the
dist point plate terminal.
Hope this helps.
<><
Whitney Haist
Orinda, CA
Chevy trucks: 2-'46s & a '39
www.jps.net/haist/artdeco.htm <http://www.jps.net/haist/artdeco.htm>
-----Original Message-----
From: owner-oletrucks@autox.team.net
[mailto:owner-oletrucks@autox.team.net]On Behalf Of Jim House
Sent: Monday, February 12, 2001 9:20 AM
To: Oletrucks (E-mail)
Subject: [oletrucks] 216 and Polarity Reversing Switch
I noticed that I did not have a Polarity Reversing Switch on top of my
starter. Like the shop manual has. Then after looking in the catalogs I
see that the points that Chev of the 40's sell points comes with a polarity
reversing switch. This is 1 3/4 overall length - like my current one. Is
this built in the points somehow - or is my truck wired wrong?
Currently I have the wire from the coil going directly to the outside (away
from the motor) of the rotor.
Thanks,
Jim House
46 Chevy 3104
Hollis, NH
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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