dodge m37 ignition switch
Moderators: Cal_Gary, T. Highway, Monkey Man, robi
dodge m37 ignition switch
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
Re: dodge m37 ignition switch
Here is a digram of the switch. Hope this helps you out.


1952 M37
M101 trailer
1942 Chevy G506
M101 trailer
1942 Chevy G506
Re: dodge m37 ignition switch
That's a M37B1 switch. The early switch did not have those rubber sockets on the back.
Early Douglas connector 2 & 3 wire M series ignition switches.
Later Packard connector 4 plug switch with a Douglas adapter harness.
Wiring the 4 pole Packard switch.
Early Douglas connector 2 & 3 wire M series ignition switches.
Later Packard connector 4 plug switch with a Douglas adapter harness.
Wiring the 4 pole Packard switch.
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.
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.
-
- SSGT
- Posts: 339
- Joined: Fri Jan 18, 2008 9:56 am
- Location: Long Island
Re: dodge m37 ignition switch
Thank You all...
1952 M37 W/W
Veteran of 82 ABN. Division Motor Pool 1969
Veteran of 82 ABN. Division Motor Pool 1969
Re: dodge m37 ignition switch
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! 

-John
Member of Dixie Division MVC
1953 USAF M37 wow, restored
1962 M151 Ford Production, on the rotisserie now
1953 USMC M37 w/w -in storage
1942 M6 Bomb Service Truck (sold to UK collector)
1967 M116A1 Pioneer Trailer
1968 M101A1 Trailer
S-89 Comm box
Member of Dixie Division MVC
1953 USAF M37 wow, restored
1962 M151 Ford Production, on the rotisserie now
1953 USMC M37 w/w -in storage
1942 M6 Bomb Service Truck (sold to UK collector)
1967 M116A1 Pioneer Trailer
1968 M101A1 Trailer
S-89 Comm box
Re: dodge m37 ignition switch
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.
Re: dodge m37 ignition switch
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.
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.
Re: dodge m37 ignition switch
The extra switch is in lieu of a keyed ignitioncuz 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.

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.
Re: dodge m37 ignition switch
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

Sal

1954 M37 WO/W
1969 M101A1
1967 M416
1969 M101A1
1967 M416
-
- Moderator
- Posts: 1818
- Joined: Thu Jul 09, 2009 4:57 am
- Location: S.E. Wisconsin, USA, Earth
Re: dodge m37 ignition switch
Welcome back Wes.
Bert
Bert
1952 M37 W/W Rebuild @ 59% complete
Engine rebuild @ 95% complete
1985 M1009, 1990 M101A2, 2008 M116A3 Pioneer tool trailer
MVPA # 24265
NRA Life Member
NRA Cert. Personal Protection Pistol Instructor
NRA Cert. RSO
Class III RSO/KCR
Engine rebuild @ 95% complete
1985 M1009, 1990 M101A2, 2008 M116A3 Pioneer tool trailer
MVPA # 24265
NRA Life Member
NRA Cert. Personal Protection Pistol Instructor
NRA Cert. RSO
Class III RSO/KCR
Re: dodge m37 ignition switch
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.
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.