First Generation Firebird-L Mailing List
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I don't know if you solved the wiper shortage yet, but to rule out a faulty
wiper-motor you can test it like this:
Looking at the firewall and the motor you see three connectors on the motor,
One seperate, one pair. The right one of the pair is 12V, ground the other
one and you have a high-speed rotation.
Connect 12V on the right pin of the pair and prepare a ground wire to be
manually connected to the left one of the pair. When connecting the left pin
to ground be careful; a spark is ok, but if you don't hear the motor go,
don't keep it connected, maximum of half a second.
I suggest a seperate 12V source, spare battery or so, don't use the wiring
from the car, connect it directly.
I have the feeling a wire might be swapped at this connector...
I can get you a picture of the pins if you want to be sure.
Good luck,
Gerrit
http://www.rgp.nl/bird
----- Original Message -----
From: "Andy" <[EMAIL PROTECTED]>
To: "First Generation Firebird-L" <[email protected]>
Sent: Monday, December 17, 2007 7:26 PM
Subject: Re: FW: [FGF] '68 wiper question
First Generation Firebird-L Mailing List
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The motor case should be grounded. The grommets reduce the vibrations
passed to the firewall.
If there were a short to ground between the switch and the motor, I would
expect the wipers to always be on, since the switch just grounds the
circuit.
Andy
Steve Powell wrote:
First Generation Firebird-L Mailing List
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As I recall there are rubber grommets for the wiper motor mount. If it is
a
ground switch circuit as Stu indicates these would isolate the wiper motor
ground from the chassis ground. Make sure the motor case isn't contacting
the firewall by accident.
Steve
____________________
Wipers work backwards from most circuits. There is always positive 12
volts
to the wiper motor as soon as the ignition is turned on. The switch then
creates the ground when turned on. It sounds as though there is a short
to ground somewhere before it gets to the wiper motor. Try unplugging all
the wiring at the wiper motor and see if it still blows the fuse. If so,
there is a short before the wiper motor, most likely where it passes
through the firewall.
Stu
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