 74 914 main wire harness modification, for running a 3.0-6 |
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| Luke M |
 Oct 5 2021, 09:00 AM
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#1
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Senior Member  Group: Members Posts: 1,380 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States 
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I have my brothers main wire harness laid out here on a table. The rear light portion needs some TLC. While I'm at it wanted to delete the under the seat relay. I know just jump the yellow wire and go. I want to clean up that whole mess of wires if possible. My question is what can be deleted and what can't? I plan on adding a few wires for the 3.0 press/temp gauge and maybe a few other spares from the engine up to the gauge cluster.
Maybe Jeff B will chime in here.... @JeffBowlsby Attached image(s)   
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| JeffBowlsby |
Oct 5 2021, 09:26 AM
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914 Wiring Harnesses Group: Members Posts: 8,548 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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My advice would be to don't bother with the deletions. Study the schematic for the circuits you want to delete and you will see that there is alot that is interconnected, which will then require additional repairs. And for what benefit...saving a couple pounds of wire? Also, whatever you renegineer you wil need an EE to figure things out going forward if ther are problems becasue the harness will have no accurate schematic.
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| ClayPerrine |
Oct 5 2021, 10:55 AM
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Life's been good to me so far..... Group: Admin Posts: 15,534 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(JeffBowlsby @ Oct 5 2021, 10:26 AM)  My advice would be to don't bother with the deletions. Study the schematic for the circuits you want to delete and you will see that there is alot that is interconnected, which will then require additional repairs. And for what benefit...saving a couple pounds of wire? Also, whatever you renegineer you wil need an EE to figure things out going forward if ther are problems becasue the harness will have no accurate schematic. You are describing the harness in my big six. I started with the 73 harness. Then I removed unneeded circuits, re-pinned the relay board connection to work with a /6 relay board, changed the ignition switch, and turn signal switches for the six column, added 14 pin connectors to make the instruments removable without disconnecting all the wiring. I also added two circuits to provide power to the headlights so I could add relays up front. And I never drew a wiring diagram. I need to do that one day.... Clay |
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Posts in this topic
Luke M 74 914 main wire harness modification Oct 5 2021, 09:00 AM
Luke M
My advice would be to don't bother with the d... Oct 5 2021, 09:33 AM mepstein
My advice would be to don't bother with the ... Oct 5 2021, 11:40 AM
Luke M
My advice would be to don't bother with the ... Oct 5 2021, 06:21 PM Luke M Still messing around with the wire harness here. G... Oct 7 2021, 07:29 AM Puebloswatcop
Still messing around with the wire harness here. ... Oct 7 2021, 06:29 PM Luke M
Still messing around with the wire harness here.... Oct 8 2021, 07:14 PM Puebloswatcop
[quote name='Puebloswatcop' post='2951085' date='... Oct 8 2021, 07:38 PM Luke M
[quote name='Luke M' post='2951341' date='Oct 8 2... Oct 9 2021, 06:57 AM FlacaProductions One good source is https://www.restoration-design.... Oct 8 2021, 07:53 PM mlindner I did as Jeff said. Only removed relay board, and ... Oct 9 2021, 07:16 AM Luke M I have the wire harness pretty much wrapped up her... Oct 22 2021, 10:53 AM lesorubcheek That looks like some seriously good quality work. ... Oct 22 2021, 03:29 PM JeffBowlsby So Luke…how much time do you have in this resurr... Oct 22 2021, 03:54 PM Luke M
So Luke…how much time do you have in this resur... Oct 22 2021, 04:33 PM |
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