74 914 main wire harness modification, for running a 3.0-6 |
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74 914 main wire harness modification, for running a 3.0-6 |
Luke M |
Oct 5 2021, 09:00 AM
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#1
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Senior Member Group: Members Posts: 1,388 Joined: 8-February 05 From: WNY Member No.: 3,574 Region Association: North East States |
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) |
JeffBowlsby |
Oct 5 2021, 09:26 AM
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#2
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914 Wiring Harnesses Group: Members Posts: 8,661 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None |
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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#3
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Life's been good to me so far..... Group: Admin Posts: 15,810 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
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 |
mepstein |
Oct 5 2021, 11:40 AM
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#4
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914-6 GT in waiting Group: Members Posts: 19,507 Joined: 19-September 09 From: Landenberg, PA/Wilmington, DE Member No.: 10,825 Region Association: MidAtlantic Region |
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 Sounds like what I’d like to do with mine. I found a nos early harness so at least I can start from a known beginning and the wire is nice and pliable. |
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