 Fuel pump for carbs on a '75, help |
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Sunday, 9 March 2025 |
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| mtndawg |
 May 15 2019, 10:16 PM
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#1
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Member  Group: Members Posts: 414 Joined: 26-January 09 From: Granite Bay, Ca Member No.: 9,985 Region Association: None 
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I have been following the directions in other posts to wire my car for carbs with a low pressure pump under the tank. In front I have a black/red wire and brown for ground which is expected. My number 13 pin on the 14 pin connector is green rather than black with red. I can't find a diagram of a '75 relay board and it's not in my manual. The previous owner had blue a jumper wire connected as shown in the photo. Is this arrangement right for this year when running carbs?
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| mtndawg |
May 16 2019, 08:53 AM
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#2
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Member Group: Members Posts: 414 Joined: 26-January 09 From: Granite Bay, Ca Member No.: 9,985 Region Association: None
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I found a Bowlsby photo that shows the '75 with a greeen wire (pin 13) attached to the black/red wire under the dash being stock. I'm wondering if someone cut the green wire under my dash which would explain not having power at 13. I'll check that today.
It looks like the jumper from 3 to 4 was carrying power to the fuel pump relay because one of those tabs is connected to pin 1 (yellow wire) on the 14 pin connector. Thank you for the reminder to disconnect the battery. |
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Posts in this topic
mtndawg Fuel pump for carbs on a '75 May 15 2019, 10:16 PM
Chi-town The blue jumper wire activates the fuel pump witho... May 16 2019, 05:21 AM Spoke It looks like pin 3 is connected to pin 4.
Pin 3 ... May 16 2019, 07:24 AM mtndawg Yes the PO had 3 and 4 connected. I’m not gettin... May 16 2019, 07:42 AM
Spoke
Yes the PO had 3 and 4 connected. I’m not getti... May 16 2019, 08:06 AM mtndawg I have power on both sides of the fuse
Tested the... May 17 2019, 08:09 AM Spoke
I have power on both sides of the fuse
Tested th... May 17 2019, 08:18 PM wndsnd Well it looks like fuel pump week. I wish I had s... May 17 2019, 09:01 PM mtndawg Had the relay board out testing everything I could... May 18 2019, 02:50 PM Spoke
Had the relay board out testing everything I coul... May 18 2019, 02:57 PM |
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