 Fuel pump for carbs on a '75, help |
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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 18 2019, 02:50 PM
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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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Had the relay board out testing everything I could think should have continuity and everything checked out along with getting 12 volts in all the right locations. I put it all back together to test for voltage at the pump. When I turned the key it went on! I don’t know what the problem was. Moving forward for now.
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| Spoke |
May 18 2019, 02:57 PM
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#3
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Jerry Group: Members Posts: 7,126 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
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QUOTE(mtndawg @ May 18 2019, 04:50 PM)  Had the relay board out testing everything I could think should have continuity and everything checked out along with getting 12 volts in all the right locations. I put it all back together to test for voltage at the pump. When I turned the key it went on! I don’t know what the problem was. Moving forward for now. Good to hear although it is also good to find the issue and fix it. Many times electrical issues stem from poor contact at connectors. Removing and reinserting connectors sometimes makes better contact and things run again. Let's just hope the issue doesn't come back. (IMG:style_emoticons/default/beerchug.gif) |
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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 found a Bowlsby photo that shows the '75 wit... May 16 2019, 08:53 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 |
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