dodge m37 ignition switch

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nutsfor59
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dodge m37 ignition switch

Post by nutsfor59 »

hi,can anyone out there tell me the order of wires on the switch ??? my ignition switch has no number tags on the wires !!!,so if i was looking at the back of the switch what would be the numbers clockwise ?? so i can then place new tags,thanks to any and all who can help me with this,nutsfor59
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rixm37
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Re: dodge m37 ignition switch

Post by rixm37 »

Here is a digram of the switch. Hope this helps you out.




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cuz
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Re: dodge m37 ignition switch

Post by cuz »

That's a M37B1 switch. The early switch did not have those rubber sockets on the back.
DSCN0001.JPG
DSCN0001.JPG (227.17 KiB) Viewed 3781 times
Early Douglas connector 2 & 3 wire M series ignition switches.
4 pole ign sw.JPG
4 pole ign sw.JPG (19.93 KiB) Viewed 3781 times
Later Packard connector 4 plug switch with a Douglas adapter harness.
4 Post Packard sw to Douglas.JPG
4 Post Packard sw to Douglas.JPG (36.73 KiB) Viewed 3781 times
Wiring the 4 pole Packard switch.
Wes K
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54 M37, 66 M101, 45MB, 51 M38, 60 CJ5, 46 T3-C
MVPA 22099

Disclaimer: Any data posted is for general info only and may not be M37 specific or meet with the approval of some esteemed gurus.
peter e mark
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Re: dodge m37 ignition switch

Post by peter e mark »

Thank You all...
1952 M37 W/W
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refit1701
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Re: dodge m37 ignition switch

Post by refit1701 »

I'm glad you posted that info Cuz, as I thought I had the wrong ignition switch! I have the one you listed, not the later four connector version. Whew! 8)
-John
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1953 USAF M37 wow, restored
1962 M151 Ford Production, on the rotisserie now
1953 USMC M37 w/w -in storage
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1967 M116A1 Pioneer Trailer
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Re: dodge m37 ignition switch

Post by ZGjethro »

I have my fuel pump wired on its own fused circuit and dash mounted toggle switch. I still need to run the circuit through an oil pressure switch for safety. When driving my truck, you first turn on the battery negative disconnect, then the ignition switch, then the fuel pump and then you press the starter.
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Re: dodge m37 ignition switch

Post by cuz »

That will work but a word of caution, make sure that it's written somewhere so some good old buddy doesn't try to start the truck and run the battery down cause he wasn't aware of the extra switching.
Wes K
wsknettl@centurytel.net

54 M37, 66 M101, 45MB, 51 M38, 60 CJ5, 46 T3-C
MVPA 22099

Disclaimer: Any data posted is for general info only and may not be M37 specific or meet with the approval of some esteemed gurus.
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Re: dodge m37 ignition switch

Post by ZGjethro »

cuz wrote:That will work but a word of caution, make sure that it's written somewhere so some good old buddy doesn't try to start the truck and run the battery down cause he wasn't aware of the extra switching.
The extra switch is in lieu of a keyed ignition :D
I have gone down the road a 1/4 mile only to have the engine sputter and die multiple times after forgetting to turn on the pump.
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Re: dodge m37 ignition switch

Post by Sal »

My fuel pump is wired to the ignition switch and fused. I also have a spring loaded toggle switch that controls a 24 volt relay that bypasses the oil pressure safety switch so I can energize the fuel pump to prime the carb. Before I try to start the engine if needed. I don't have a Mechanical pump.


Sal
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1969 M101A1
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T. Highway
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Re: dodge m37 ignition switch

Post by T. Highway »

Welcome back Wes.

Bert
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Engine rebuild @ 95% complete
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Re: dodge m37 ignition switch

Post by cuz »

Hello Bert! Been a busy summer!
Wes K
wsknettl@centurytel.net

54 M37, 66 M101, 45MB, 51 M38, 60 CJ5, 46 T3-C
MVPA 22099

Disclaimer: Any data posted is for general info only and may not be M37 specific or meet with the approval of some esteemed gurus.
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