 Today's question, Fuel Pump Terminals |
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| kkid |
 Aug 22 2026, 07:55 PM
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#1
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Member  Group: Members Posts: 365 Joined: 18-December 07 From: Oakland, CA Member No.: 8,483 Region Association: Northern California  |
Hello guys!
I am in the process of changing my 3 ports fuel pump to 2 ports. My 2nd (since my ownership) 3 ports pump is intermittently giving up. I have checked connections, relay and ground wires but it still likes to cut off sometimes. I think it is a fuel pump because it always happens at steady speed. So I am changing it to a new 2 port pump at the firewall near the original location. I unplugged the white(already discolored as everyone knows) connector and am looking at the electrical terminals. There are 2 and sizes are slightly different. I think the one that is connected to a brown wire should be negative and the other one should be +. But the 2 wires at the connector are almost the same color because of their age. Which one is the negative, bigger terminal or smaller terminal? I can test with a multi meter but that can be useful only if I have a helper here. Thanks in advance for the inputs, kkid (IMG:style_emoticons/default/smile.gif) |
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Replies(1 - 4)
| dtmehall |
Aug 22 2026, 08:24 PM
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#2
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Member Group: Members Posts: 352 Joined: 21-December 23 From: Michigan Member No.: 27,808 Region Association: Upper MidWest |
where is the fuel pump?
Original or in front? Did you check the fuse in the relay plate? Picture? |
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| dtmehall |
Aug 22 2026, 08:26 PM
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#3
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Member Group: Members Posts: 352 Joined: 21-December 23 From: Michigan Member No.: 27,808 Region Association: Upper MidWest |
where is the fuel pump?
Original or in front? Did you check the fuse in the relay plate? Picture would be help full (IMG:style_emoticons/default/yellowsleep[1].gif) |
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| kkid |
Aug 22 2026, 09:00 PM
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#4
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Member Group: Members Posts: 365 Joined: 18-December 07 From: Oakland, CA Member No.: 8,483 Region Association: Northern California |
QUOTE(dtmehall @ Aug 22 2026, 07:26 PM)  where is the fuel pump? Original or in front? Did you check the fuse in the relay plate? Picture would be help full (IMG:style_emoticons/default/yellowsleep[1].gif) Hi, Thanks for the reply. It's a 74 and the pump is still located in its original position. I will install the new pump near the original location but it will be shifted from the hell hell area. The 2 port pump is too big to be on the corner. I have checked the fuse and cleaned the contact at the relay board. But the problem still persists. I will take some photos tomorrow. kkid (IMG:style_emoticons/default/smile.gif) |
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| kkid |
Aug 22 2026, 10:50 PM
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#5
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Member Group: Members Posts: 365 Joined: 18-December 07 From: Oakland, CA Member No.: 8,483 Region Association: Northern California |
Found my answer here.
http://www.914world.com/specs/SirAndyCarbFuelPumpRelay.php Thanks SirAndy for taking that pic of the connector! |
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