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Tech & Fab
Sbc350 fuel pump
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<blockquote data-quote="e4cutler" data-source="post: 671979" data-attributes="member: 10702"><p>Backstory: During the process of redoing the Jeep. I modified the fuel cell to take an internal stock fuel pump for my sbc350 motor versus an external pump. In addition, the fuel lines have been replaced with braided hose and AN fittings all the way to the throttle body. I put the fuel cell in Friday night and hooked up all the lines. What I thought would happen when I flipped the power switch was the fuel pump would run until the lines were full of fuel thus pushing all the air out and then cut off. What actually happened when I flipped the power switch, was the pump ran for a few seconds then the relay kicked off. I turned power off then on and got the same thing. After 3 rounds of this, fuel came out at the throttle body. Due to a leak at the throttle body, I had to stop and wasn't able to start the motor. Power to the pump goes through the harness/computer and is not direct to the battery. </p><p></p><p>Question: Is this normal or is something wrong with my fuel pump? </p><p></p><p><img src="https://uploads.tapatalk-cdn.com/20170806/15b73294ad5c141b629f035797d3f5c0.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p><img src="https://uploads.tapatalk-cdn.com/20170806/653a9632c8ed884c1f32003937aafde1.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>Sent from my iPhone using Tapatalk</p></blockquote><p></p>
[QUOTE="e4cutler, post: 671979, member: 10702"] Backstory: During the process of redoing the Jeep. I modified the fuel cell to take an internal stock fuel pump for my sbc350 motor versus an external pump. In addition, the fuel lines have been replaced with braided hose and AN fittings all the way to the throttle body. I put the fuel cell in Friday night and hooked up all the lines. What I thought would happen when I flipped the power switch was the fuel pump would run until the lines were full of fuel thus pushing all the air out and then cut off. What actually happened when I flipped the power switch, was the pump ran for a few seconds then the relay kicked off. I turned power off then on and got the same thing. After 3 rounds of this, fuel came out at the throttle body. Due to a leak at the throttle body, I had to stop and wasn't able to start the motor. Power to the pump goes through the harness/computer and is not direct to the battery. Question: Is this normal or is something wrong with my fuel pump? [IMG]https://uploads.tapatalk-cdn.com/20170806/15b73294ad5c141b629f035797d3f5c0.jpg[/IMG] [IMG]https://uploads.tapatalk-cdn.com/20170806/653a9632c8ed884c1f32003937aafde1.jpg[/IMG] Sent from my iPhone using Tapatalk [/QUOTE]
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