 Fuel pump wiring?, either way? |
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| oakdalecurtis |
 Jan 31 2020, 12:21 PM
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#1
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Oakdalecurtis  Group: Members Posts: 1,327 Joined: 5-June 15 From: Oakdale, Ca Member No.: 18,802 Region Association: Central California 
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Helping a friend install a fuel pump in his 73 2.0 in a few days. Does it matter which way the hot and ground wire go to the pump? The connector looks bi directional....
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| SirAndy |
Jan 31 2020, 12:28 PM
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#2
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Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(oakdalecurtis @ Jan 31 2020, 10:21 AM)  Helping a friend install a fuel pump in his 73 2.0 in a few days. Does it matter which way the hot and ground wire go to the pump? The connector looks bi directional.... It's been a long time but i think the connector only fits one way. if i recall correctly the center notch has a rounded cutout on one side that prevents the plug from being used both ways. (IMG:style_emoticons/default/idea.gif) |
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| SirAndy |
Jan 31 2020, 12:31 PM
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#3
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Resident German Group: Admin Posts: 41,651 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
QUOTE(SirAndy @ Jan 31 2020, 10:28 AM) It's been a long time but i think the connector only fits one way. if i recall correctly the center notch has a rounded cutout on one side that prevents the plug from being used both ways. (IMG:style_emoticons/default/idea.gif) (IMG:http://www.914world.com/bbs2/uploads_offsite/d193453hoiapjt.cloudfront.net-179-1580495469.1.jpg) |
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| 914Sixer |
Jan 31 2020, 12:33 PM
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#4
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914 Guru Group: Members Posts: 8,886 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Sir Andy is correct. Fuel pump also has + and - if the plug is missing. Brown wire is ground.
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| ClayPerrine |
Jan 31 2020, 06:51 PM
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#5
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Life's been good to me so far..... Group: Admin Posts: 15,474 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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It matters. Run the pump backward and you don't get fuel pressure.
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| Rand |
Jan 31 2020, 08:53 PM
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#6
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Cross Member Group: Members Posts: 7,409 Joined: 8-February 05 From: OR Member No.: 3,573 Region Association: None |
Of course it matters. You want to run the pump in the right direction. (DC motor science, the direction it runs is determined by the polarity. Get it wrong and you suck (IMG:style_emoticons/default/biggrin.gif) )
There are different terminal sizes that are easy to see. And wire colors. Aftermarket fuel pumps just use wire terminals, not keyed connectors. And no, I will not spend over $300 for a fuel pump just because it has the right connector. It amazes me how many people will pay such huge money when a good fuel pump is under $40. |
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| ClayPerrine |
Feb 1 2020, 09:11 PM
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#7
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Life's been good to me so far..... Group: Admin Posts: 15,474 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille
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QUOTE(Rand @ Jan 31 2020, 08:53 PM) (IMG:http://www.914world.com/bbs2/uploads_offsite/i.ytimg.com-1143-1580613077.1.jpg) |
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