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willysmjeeps.com :: View topic - M38A1 wiring harness wrong.
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M38A1 wiring harness wrong.

 
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mydadsjeep
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Joined: Apr 26, 2017
Posts: 46
Location: Butler pa

PostPosted: Sat May 07, 2022 9:45 pm    Post subject: M38A1 wiring harness wrong. Reply with quote

I recently bought a wiring harness from Kaiser Willy's and it took about 3 months to get it. I got a call from the guy putting it in my jeep and he stated the harness has male ends that connect to the male end on the headlights. (pic 1) Is there a workaround to fix this or just connect them and leave the covers taped over?
Also, the wiring harness didn't send any wiring connectors (pic 2) Should they have sent those? One wire they did not include was the main wire to the generator and not sure if that is something I need to get separately. Currently, I brushed off the loose old covering and taped it up pretty well (pic 3).
Lastly, the main switch got fried ( pic 4 and 5), does anyone know a good place to get a NOS one?





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4x4M38
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Joined: May 30, 2014
Posts: 3342
Location: Texas Hill Country

PostPosted: Sun May 08, 2022 5:12 am    Post subject: Reply with quote

There is a sleeve that goes between the metal shell connectors that the male pins go in from each side. I donít see any.

As far as the main light switch. If what I see is what has burned up, you are in luck. That is the main power switch not the light switch.

Much easier and cheaper to find.
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Brian
1950 M38
MC11481
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mydadsjeep
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Joined: Apr 26, 2017
Posts: 46
Location: Butler pa

PostPosted: Sun May 08, 2022 7:27 am    Post subject: Reply with quote

In the last two pictures, the main switch, I looked at the kiaser willy catalog and didn't see one. Do they carry them or just not on the site? I'll call Monday but what is the tech name for it?
And it is an assembly or buy the whole thing>
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Kendall
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Joined: Feb 25, 2006
Posts: 315
Location: Wichita, KS

PostPosted: Sun May 08, 2022 9:09 am    Post subject: Reply with quote

IMO why don't you go to parts suppliers who specialize in military parts for your military jeep? There are a number of them out there who have what you need.
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1951 M38
1952 M38
1952 M38A1
1942 Dodge WC-55
1951 M100 trailer
1942 Ben Hur trailer
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wesk
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Joined: Apr 04, 2005
Posts: 15813
Location: Wisconsin

PostPosted: Sun May 08, 2022 10:30 am    Post subject: Reply with quote

I took the liberty of correctly linking your photos to an accessible by the public link and sandwiched each link inside a pair of these ( [img][/img] ) as they should be.

That switch is actually called an ignition switch.

I have always ordered a new harness directly from the Harness builder in the northeast US and skipped all the dealer middle men. There are plenty of spare Douglass connectors on the market and the method to change them is here on our downloads pages.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

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mydadsjeep
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Joined: Apr 26, 2017
Posts: 46
Location: Butler pa

PostPosted: Sun May 08, 2022 1:03 pm    Post subject: Reply with quote

Wiring the jeep, there are two wires that go into the steering box. There was no information on what they are actually for? Not turn signals or pressure gauges?
Looking for gromlets that go through the firewall for the wires. Anyone have them or a go place to get them>
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RonD2
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Joined: Oct 02, 2014
Posts: 1573
Location: South Carolina, Dorchester County

PostPosted: Sun May 08, 2022 1:39 pm    Post subject: Reply with quote

The 2 wires coming out of the bottom of the steering box are the horn switch.

You really should download a free copy of the tech manuals.
They include wiring diagrams. And a lot of other useful information.
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Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari



Last edited by RonD2 on Sun May 08, 2022 6:48 pm; edited 1 time in total
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4x4M38
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Joined: May 30, 2014
Posts: 3342
Location: Texas Hill Country

PostPosted: Sun May 08, 2022 2:20 pm    Post subject: Reply with quote

Grommets can be found in the US at hardware and auto parts stores.

The waterproof wiring is not dependent on the grommets. You can get the dimensions from the manuals available online, or just buy grommets that fit the different holes in your firewall. The internal diameter only needs to be big enough for the wires and connectors to pass through.
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Brian
1950 M38
MC11481
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RonD2
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Joined: Oct 02, 2014
Posts: 1573
Location: South Carolina, Dorchester County

PostPosted: Sun May 08, 2022 3:49 pm    Post subject: Reply with quote

Erik sells the ignition switch here: https://eriksmilitarysurplus.com/igswformvems.html
Youíll have to make Packard to Douglas adapters to mate to the M38 harness.
Iíve never seen new or NOS ignition switches with Douglas connectors (doesnít mean there arenít any to be had).
With patience you might find one, or a good used take-off.

Hereís a set of ready-made M38 grommets: https://www.armyjeepparts.com/p-1220-master-wiring-grommet-kit-m38-jeep-ajp-0020.aspx
Like Brian said, likely a lot cheaper if you get them from your local hardware store.

Your best bet for military and M38 parts isnít KW. Itís MWM, AJP, BMJP, DeBella, and QTM.

Good luck!
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Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

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4x4M38
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Joined: May 30, 2014
Posts: 3342
Location: Texas Hill Country

PostPosted: Sun May 08, 2022 7:56 pm    Post subject: Reply with quote

https://www.ebay.com/itm/332184629718
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Brian
1950 M38
MC11481
http://www.willysmjeeps.com/v2/modules.php?set_albumName=album372&op=modload&name=gallery&file=index&include=view_album.php
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RonD2
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Joined: Oct 02, 2014
Posts: 1573
Location: South Carolina, Dorchester County

PostPosted: Tue May 10, 2022 6:58 pm    Post subject: Reply with quote

Gotta wonder if he got what he needed.
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Ron D.
1951 M38 Unknown Serial Number
1951 M100 Dunbar Kapple 01169903 dod 5-51

ďThe only good sports car that America ever made was the Jeep."
--- Enzo Ferrari

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G740
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Joined: Jan 27, 2006
Posts: 492

PostPosted: Tue May 17, 2022 5:34 am    Post subject: Reply with quote

Midwest Military has everything you need to fix your current problems including tech help that knows how it should be. Ring us for assistance.
John
www.midwestmilitary.com
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