GPW harness routing

1941 - 1945, MB, GPW Technical questions and discussions, regarding anything related to the WWII jeep.
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Ed Menees
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GPW harness routing

Post by Ed Menees » Sat Aug 01, 2020 6:14 pm

I have GPW 7310 with an MB (factory) chassis. Is the wiring harness supposed to run between the clutch pedal arm and the tub? It looks very tight.
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GPW7310 Script
Completed Nov. 2002

irakli
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Re: GPW harness routing

Post by irakli » Sat Aug 01, 2020 10:01 pm

Posting the photo may help to answer your question.
1944 Willys MB
1978 VOLVO TGB 1111

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YLG80
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Re: GPW harness routing

Post by YLG80 » Sun Aug 02, 2020 1:40 am

I remember I had to stretch out the harness at that place in my GPW 1943.
It was really difficult to install and I had to find the best position for the wires connected to the light switch?
Yves
Ford GPW 164794 1/4T 12-7-43 - Frame# GPW*239762*
ACM I body#198443
Restored as 1st Army 759th LT B21
ON6YD(ex YB1AUH)

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Ed Menees
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Re: GPW harness routing

Post by Ed Menees » Sun Aug 02, 2020 9:12 am

Image
It appears that the harness should be coming from farther back by looking at the position of the factory clamp.
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GPW7310 Script
Completed Nov. 2002

Chuck Lutz
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Re: GPW harness routing

Post by Chuck Lutz » Sun Aug 02, 2020 9:51 am

When I installed the Joe Hall VWOM main harness in GPW-17963, I unfortunately started by wiring the taillights and working forward.
BIG MISTAKE!
You can lay out the route the harness will take to the rear, but you need all the slack you can get to wire the light switch without it being partially jammed under the dash. Wiring in the taillights first gave me zero slack to enable me to wire the light switch comfortably.

Just wire the light switch FIRST, then wire the shorter harnesses that extend through the firewall to the 6-post. Once all the wiring the light switch controls, you can work towards the rear of the jeep with the main harness and when you have wired it into the rear lights, you can THEN bend the tabs and install the "J" clamps that hold the main harness to the underside of the jeep.
Chuck Lutz

GPW 17963 4/24/42 Chester, PA. USA 20113473 (USA est./Tom W.)
Bantam T3-C 1947

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Ed Menees
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Re: GPW harness routing

Post by Ed Menees » Sun Aug 02, 2020 11:35 am

Thanks for the reply.
I understand what you are saying. The harness had been previously installed. The problem is I don't know the correct routing of the harness. I am trying to straighten out the mess under the dash so I disconnected the front end of the harness. My question remains. Is the routing correct per my picture?
Ed Menees
GPW7310 Script
Completed Nov. 2002

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YLG80
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Re: GPW harness routing

Post by YLG80 » Sun Aug 02, 2020 12:04 pm

It looks like the routing is correct. The harness has to be attached with the clip.
But you should compare with the routing given in this howto:https://willys.be/info/woa6758/woa6758.html
There are many photos.
Here also : viewtopic.php?p=1353707#p1353707
Ford GPW 164794 1/4T 12-7-43 - Frame# GPW*239762*
ACM I body#198443
Restored as 1st Army 759th LT B21
ON6YD(ex YB1AUH)

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