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Kirkham Motorsports

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Old 01-09-2022, 06:49 PM
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Join Date: Sep 2003
Location: Marion, SC
Cobra Make, Engine: ERA # 491 427 SO red - built in 1997. Original owner.
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I replaced the fuel pump this weekend. Tricky to get that thing bolted in with the pump lever loaded against the cam. I used assembly lube and some longer bolts to get it started in line and managed to get it in OK being careful not to cross thread the bolts. I tested it and it is a steady 8 psi and I think it helps the situation. I started it and noticed a good deal of gas dripping into the secondary bores almost like the float was stuck. I removed the fuel inlet valve and the "O" ring was in 2 pieces. I replaced it and lowered the float another 1/8 inch and it cranked up and runs fine. Music to hear the car running like it should. I will eventually take the old pump apart to see if I can find anything wrong however it consistently pumps over 10 psi which is too much.
Thanks for all the comments above. They have been most helpful and encouraging.
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Old 01-09-2022, 08:21 PM
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Cobra Make, Engine: Shelby CSX4005LA, Roush 427IR
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Quote:
Originally Posted by TKlauber View Post
I replaced the fuel pump this weekend. Tricky to get that thing bolted in with the pump lever loaded against the cam. I used assembly lube and some longer bolts to get it started in line and managed to get it in OK being careful not to cross thread the bolts. I tested it and it is a steady 8 psi and I think it helps the situation. I started it and noticed a good deal of gas dripping into the secondary bores almost like the float was stuck. I removed the fuel inlet valve and the "O" ring was in 2 pieces. I replaced it and lowered the float another 1/8 inch and it cranked up and runs fine. Music to hear the car running like it should. I will eventually take the old pump apart to see if I can find anything wrong however it consistently pumps over 10 psi which is too much.
Thanks for all the comments above. They have been most helpful and encouraging.
Thanks for giving the follow up. Many people never let us know how right or wrong we are
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Tony
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