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Kirkham Motorsports

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Old 06-12-2021, 05:46 PM
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Cobra Make, Engine: ERA 427SC FMS 351W
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Default For leak free connection
I am installing a new electric fuel pump. All connected gas lines and electrical wires. After starting I have a very slow leak on the outlet side. I probably need to reseat the brass 3/8 fitting into the aluminum fuel pump block. What should I put on the threads for a leak free connection. I am using teflon tape now but maybe not enough. Teflon tape, pipe dope or something else?? Thanks
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Old 06-12-2021, 06:16 PM
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Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
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Originally Posted by Cobra 29 View Post
Teflon tape, pipe dope or something else?? Thanks
Something else. Permatex 80019 Aviation Form-A-Gasket No. 3 Sealant

https://www.amazon.com/Permatex-8001.../dp/B000HBM3QQ
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Old 06-12-2021, 06:34 PM
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Default Sealant
We use this in the HVAC industry:
https://www.supco.com/web/supco_live...s/HS11001.html
Never fails. Can be bought individually online.
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Old 06-13-2021, 09:29 AM
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Cobra Make, Engine: KIRKHAM 427 S/C, SHELBY 427 ALUM. STROKER
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I've had good luck with "Permatex Thread Sealsnt with PTFE" p/n 80632.
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