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02-05-2015, 12:17 PM | #1 |
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Join Date: Jun 2014
Location: Houston, Texas
Posts: 722
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Fuel Pressure Regulator Leaking
I tried installing an Edelbrock fuel pressure regulator recently because I wanted to get my pressure down to a constant 5.5 PSI since I'm running an Edelbrock # 1406
I got everything hooked up, but all the fittings I just installed were leaking fuel....not gushing but slightly leaking....everything was really tight....I removed the regulator completely from my truck and put everything back the way it was until I can get everything sealed up properly I'm assuming I need some kind of teflon tape or thread sealer maybe? Anyone ever had this problem? Whats the best thing to use for sealing fuel fittings. They are 3/8 NPT
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1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
02-05-2015, 12:37 PM | #2 |
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Join Date: Nov 2001
Location: Rapid City, SD
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Re: Fuel Pressure Regulator Leaking
With NPT threads, you will always need Teflon tape or "pipe thread dope" paste.
They are a unique tapered thread that requires thread sealant. http://www.trentonpipe.com/ti_threadformdatachart.html How to install: http://www.entegrisfluidhandling.com...ct.aspx?G=1054
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My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
02-05-2015, 12:41 PM | #3 |
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Join Date: Oct 2013
Location: Wisconsin
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Re: Fuel Pressure Regulator Leaking
I did the same upgrade (different fuel regulator) to my truck a few months ago. It was recommended to use teflon tape on all the threaded connections, which I did. No leaks. Good fuel pressure control. Some recommend Teflon paste instead. I believe both will work and it is a matter of preference. I find the tape to be easier to work with and provides a neater appearance. Someone will correct me if I am wrong.
-Ed |
02-05-2015, 01:24 PM | #4 | |
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Re: Fuel Pressure Regulator Leaking
Quote:
You helped me on both my issues today LOL
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1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
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02-05-2015, 01:25 PM | #5 | |
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Re: Fuel Pressure Regulator Leaking
Quote:
Thanks Ed!
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1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
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02-05-2015, 06:37 PM | #6 |
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Location: alvin, texas
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Re: Fuel Pressure Regulator Leaking
i prefer the paste, I've had a piece of Teflon tape stick between the needle and seat.
I use gasoila paste you can get it at tractor supply, its used for assembling gas pumps
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1967 C10 lwb two tone, 305 & rat fink style floor shifted 700r4, 20" steelies 2004 2500HD utility bed aka Brutus |
02-05-2015, 06:53 PM | #7 |
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Join Date: Jun 2014
Location: Houston, Texas
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Re: Fuel Pressure Regulator Leaking
Thanks man, I'll try to get some of this stuff
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1972 Chevrolet C20 Cheyenne Custom Camper LWB - 350 / 330 HP GM Crate - TH350 / Mild Shift Kit - Dark Blue / Medium Blue - Paint Code 559 |
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