 Fuel pump relocation and wiring |
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| captjm |
 Nov 22 2024, 09:03 PM
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#1
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Newbie  Group: Members Posts: 8 Joined: 28-January 07 From: Temecula, CA Member No.: 7,485  |
I need some help with wiring a 914 fuel pump being relocated to the front fuel tank location exactly like the 75/76 914's. The car is a 1971 914/4 being set up for a carbureted 2.4 six cylinder. My question is about where to pick up the power to run the pump correctly.
I would like it to have any relay protections like the original if that is the way it is suppose to be. I think the positive power is to come from the engine compartment relay board from the forward connector pin 13? I plan on running the positive wire from pin 13 under the driver side rocker panel forward to to the fuel tank bay and picking up the ground from the closest grounding point nearest to the tank bay. Any comments or advice would be helpful. Thank you |
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| dtmehall |
Nov 22 2024, 09:12 PM
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#2
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Member Group: Members Posts: 62 Joined: 21-December 23 From: Farmington Hills, Michigan Member No.: 27,808 Region Association: Upper MidWest |
it was 40 years ago when i did this. i believe your estimation of the relay plate is what i did. but i did run the wire up the tunnel.
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| JeffBowlsby |
Nov 22 2024, 09:32 PM
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#3
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914 Wiring Harnesses Group: Members Posts: 8,741 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None 
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It’s a 12 ga wire.
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| dtmehall |
Nov 22 2024, 09:38 PM
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#4
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Member Group: Members Posts: 62 Joined: 21-December 23 From: Farmington Hills, Michigan Member No.: 27,808 Region Association: Upper MidWest |
it was 12 gauge for the fuel injection pump. i would suspect that whatever pump you are using for carbs, will draw far fewer amp. hence a lower gauge wire requirement
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| North Coast Jim |
Nov 24 2024, 08:22 AM
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#5
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Member Group: Members Posts: 331 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region
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I ran the wire thru the tunnel wired as above. Bought a 2 conductor, red/blk paired wire from West Marine. It had a jacket around the pair, white in color, similar to Romex. Worked great. Oh and the stranded conductor count was IFRC was 19.
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| North Coast Jim |
Nov 24 2024, 08:25 AM
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#6
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Member Group: Members Posts: 331 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region
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I ran a two conductor wire thru the tunnel wired as above. It was a red/blk pair jacketed like romex, white in color. Bought it at West Marine. Worked great. Oh, if IIRC the conductor count was 19 strands.
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| davep |
Nov 24 2024, 12:24 PM
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#7
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914 Historian Group: Benefactors Posts: 5,213 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
QUOTE(dtmehall @ Nov 22 2024, 11:38 PM)  it was 12 gauge for the fuel injection pump. i would suspect that whatever pump you are using for carbs, will draw far fewer amp. hence a lower gauge wire requirement But the wire length is about double. The original wire seemed undersized to me when I looked at 20 harnesses with most pump wires cooked. I would not go less than the 12AWG that Jeff recommends. |
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