m38 light switch help

Discussion topics on Willys Overland M series vehicles
User avatar
paynzer
Contributor
Contributor
Posts: 66
Joined: Sat Apr 04, 2009 6:00 pm
Location: Georgia, USA

m38 light switch help

Post by paynzer »

Hey, I have a Cannon plug for my 3 lever light switch which has 10 short wire stubs sticking out of it. I want to use this to make a wiring harness, but I can't make out the letters on the plug. I have seen the diagrams of the light switch from the side, but this does not help. Does anyone have a picture of where these 10 wires would go looking straight into the plug with the notch at 12 o'clock? Hope this makes sense, and thanks for the help, Paynzer.
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16469
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

Image

Image

I can't help with a straight on photo of the plug but you should be able to master this view and apply it. :wink:
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
User avatar
paynzer
Contributor
Contributor
Posts: 66
Joined: Sat Apr 04, 2009 6:00 pm
Location: Georgia, USA

Post by paynzer »

Thank you so much, Wes. This is exactly what I was needing :D
User avatar
paynzer
Contributor
Contributor
Posts: 66
Joined: Sat Apr 04, 2009 6:00 pm
Location: Georgia, USA

Post by paynzer »

Hey Wes, I am missing the wire that is supposed to be in the "F" position. What is the trick to wiring into the Cannon plug? Thanks.
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16469
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

It's your lucky day. I found an extra plug lying here.

Image
Here's the harness plug with the female sockets/pins

L & J are not normally used on early M series. F is main 24 volts in. You'll need it.
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16469
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

You must disassemble the plug.

1-Connect plug to a switch so you can hold it from turning.

2-Remove the wire markers.

3-Remove the rear shell that surrounds the rubber at the rear. You may need to do a little WD40 soaking to get the shell to turn free of the rubber.

4-Using a small blade plastic screw driver tip work around the rubber grommet to loosen it so it can be pulled or pushed aft away from the contact pins, Pry the rubber block out and slide it off the wires.

5-Using a pin removal tool push the pins out the rear of the remaining shell.

6-If pins were originally soldered you can now de-solder them and solder in your new wire. Remember to thread your new wire through the rear shell/nut and the appropriate hole in the rubber grommet before you solder the new wire in the pin.

7-If the pins were crimped originally you will toss them and buy new pins from Saturn Surplus, Midwest Military etc. With the new pins go back to step 6. If you prefer to crimp the new pins just buy the crimp tool from either supplier.

Image
Pin removal tool set.

Image
Crimp tool

Image
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
User avatar
paynzer
Contributor
Contributor
Posts: 66
Joined: Sat Apr 04, 2009 6:00 pm
Location: Georgia, USA

Post by paynzer »

Many thanks again, Wes....exactly what I needed !!!
User avatar
jeepers52
Contributor
Contributor
Posts: 92
Joined: Tue Mar 11, 2008 6:00 pm
Location: Oro Valley, Arizona

Post by jeepers52 »

Wesk

Is there anything you cannot find the answer to? Your knowledge base is amazing.
Mario
U.S. Army

1952 M38 Jeep
1952 M38 Jeep (project)
1945 T-3 Bantam trailer
User avatar
toolmanm203
Member
Posts: 46
Joined: Fri May 30, 2008 6:00 pm
Location: Rochester, N.Y.

Post by toolmanm203 »

Wes always answers my questions asap as well as everyone elses and yet I still feel stupid after having my m38 for three years?
jeepers52 wrote:Wesk

Is there anything you cannot find the answer to? Your knowledge base is amazing.
User avatar
paynzer
Contributor
Contributor
Posts: 66
Joined: Sat Apr 04, 2009 6:00 pm
Location: Georgia, USA

Post by paynzer »

I have not had my 52 M38 very long, but I already wish Wes was my next door neighbor !!!
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16469
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

Thanks for the pleasant comments. I will remind you guys that Wes also had to learn to walk first before he could run! :wink:

I take a lot of negative hits because I prefer to be specific with my answers, as brief as possible and provide a valid base for any opinions I offer and use photos whenever possible. Most of the hits come from the GURU who loves himself on the G503!

I have always been a "Jack of all trades and master of none" kinda technician. Ever since entering the USAF in 66 as a crew chief on heavies I have learned to Get the Book, Read the Book, Use the Book, Develop better ways to get things done and then when I was a supervisor I always taught the folks that first we learn the right way, then the USAF way and finally My way. I would never tolerate a young troop trying his way before he had become proficient in the first three ways.

Hence as long as Ryan and I are running this web site you will, for the most part only see substantiated data allowed to be the final word in a post and you will see more and more manuals showing up on our downloads page.

One thing I hope you never have to see is this kind of crap:
US ARMY HONOR GRAD MECHANIC M-38/M-38A1 MOS TRAINED-RESTORED MB M-37 M-38A1 CCKW MBT BEN HUR
GRADUATE US ARMY ORDNANCE SCHOOL O-1 BIRD DOG CREWCHIEF 6+ DETAIL ORIENTED DECADES WWII THRU M-SERIES JEEPS TRUCKS-CJ2A THRU CJ-5
LIFETIME DAV 40/8 NAACP
:lol:

That 6+ decades of experience referred to above is claimed by a 65 year old fellow. He is saying he started bending wrenches at age 5!!! :lol:
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
User avatar
ECVJeeps
Active Member
Active Member
Posts: 195
Joined: Sun Jun 20, 2010 6:00 pm
Location: Halifax, Nova Scotia, Canada

Post by ECVJeeps »

Wes even helps you when you are having a bad day and crap all over him.
I give both the website and the moderators a two thumbs up!

Pat Newman
ECVJeeps
User avatar
wesk
Site Administrator
Site Administrator
Posts: 16469
Joined: Sun Apr 03, 2005 6:00 pm
Location: Wisconsin
Contact:

Post by wesk »

Hello Pat,
Glad to see we finally have you back up and running on the web site!!!
Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules. ... _album.php
User avatar
nepperjepper
Member
Posts: 19
Joined: Tue Jun 23, 2009 6:00 pm
Location: Mooresville Indiana

Post by nepperjepper »

Next door neighbor. $&%, I wish he was my dad. Wes your not looking to adopt a 55 year old stepchild are you? I’ll bring my own jeeps. All you need to do is feed me and put me in the will. ha ha ha

Jeff
User avatar
Cacti_Ken
Jeep Legend
Jeep Legend
Posts: 1021
Joined: Tue Apr 19, 2005 6:00 pm
Location: Silsbee, Texas

Post by Cacti_Ken »

And I appreciate Wes's patience when trying to get an explanation thru my thick skul.
Tropical Veteran
35th Inf. Reg. "CACTI" 4th I.D. VN
Amateur Radio K5XOM
Post Reply