justnuts40
member
Reged: Mar 16 2003
Loc: Illinois USA
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I have 727 trany. Im trying to get the NSS to work for the starter ground and the back up lights. Tell me if I'm wrong, but the two outside pins are the back up lights, 12 volts in and out, and the inside pin is the ground for the starter relay ground? I've checked the hot wire to the switch and have 12 volts. I've checked the center pin and have no ground out when in park, and nothing between the two outside pins in reverse. Bad switch?
Help1
Thanks for the post, Tony
etony58@gmail.com
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screamindriver
enthusiast #2
Reged: Feb 14 2004
Loc: Harrisburg, Pa.
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You are correct...Center is NSS and two outside terminals are back-up..But you have it backwards at the other end of the switch...Plastic plunger operates the NSS and the pin activates the back-up lights..I'd make sure the shifter linkage is properly adjusted first thing...
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dusturbd340W5
super gas
Reged: Jan 19 2003
Loc: Kissimmee Fl.
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Quote:
You are correct...Center is NSS and two outside terminals are back-up..But you have it backwards at the other end of the switch...Plastic plunger operates the NSS and the pin activates the back-up lights..I'd make sure the shifter linkage is properly adjusted first thing...
sorry but this is incorrect the center metal pin on the inside is what grounds to the VB creating the ground that runs to the starter sol.
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70 duster full chassis super pro 416 CNC Indybrock heads 727 w/brake
best so far 1.352 60 6.219 in 1/8 at 110.88 9.768 at 137.81 1/4
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John_Kunkel
I Live Here
Reged: Jan 20 2003
Loc: Rio Linda, CA
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The metal center pin serves both functions, it drops into a "divot" in the plastic shoe to activate the BU lights and in Neutral and Park it makes contact with the exposed metal base in the shoe to ground the starter relay.
The only reason the plastic plunger is spring-loaded is to keep it in contact with the plastic shoe.
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TexasMopar
member
Reged: Jan 22 2005
Loc: Santa Fe,Texas
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Thanks for the detailed operation of the switch and pic. Makes sense when you know the details. Jim
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RodStRace
Mine goes to 11
Reged: Sep 21 2005
Loc: Chino Valley
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TECH ARCHIVE!!!
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Gotta get one of them new Challengers!
Rod=1940 Plymouth 5.2L/518
ST=1947 Chrysler Windsor
Race=1971 Cuda
Daily driver=closest to High Impact available in '04.
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