Fuel System Fittings
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Fuel System Fittings
What are you guys using on the 3/8 fittings to seal the threads in the fuel system?
I bought the new boat about a month ago and it had the holley red pump, the fuel pressure wasn't high enough, and the red pump wasn't sufficient enough on flow. So I got a whole new system with the Holley blue pump and regulator. Installed the system using all -8 AN lines and fittings, and -8 AN to 3/8 for the pump, regulator, and filter. Well my 3/8 are leaking a little at the regulator in and out. I used liquid thread sealant, and you can see little flakes of it like the fuel is eating it. A buddy of mine did both his motors about 2 months ago, and he said it leaked everywhere that liquid thread sealant was used. It works great for water fittings, and oil fittings but seems like it can't stand up to fuel. So my question is what are you guys using to keep these sealed up from leaking? Thanks for the help in advance
I bought the new boat about a month ago and it had the holley red pump, the fuel pressure wasn't high enough, and the red pump wasn't sufficient enough on flow. So I got a whole new system with the Holley blue pump and regulator. Installed the system using all -8 AN lines and fittings, and -8 AN to 3/8 for the pump, regulator, and filter. Well my 3/8 are leaking a little at the regulator in and out. I used liquid thread sealant, and you can see little flakes of it like the fuel is eating it. A buddy of mine did both his motors about 2 months ago, and he said it leaked everywhere that liquid thread sealant was used. It works great for water fittings, and oil fittings but seems like it can't stand up to fuel. So my question is what are you guys using to keep these sealed up from leaking? Thanks for the help in advance
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What are you guys using on the 3/8 fittings to seal the threads in the fuel system?
I bought the new boat about a month ago and it had the holley red pump, the fuel pressure wasn't high enough, and the red pump wasn't sufficient enough on flow. So I got a whole new system with the Holley blue pump and regulator. Installed the system using all -8 AN lines and fittings, and -8 AN to 3/8 for the pump, regulator, and filter. Well my 3/8 are leaking a little at the regulator in and out. I used liquid thread sealant, and you can see little flakes of it like the fuel is eating it. A buddy of mine did both his motors about 2 months ago, and he said it leaked everywhere that liquid thread sealant was used. It works great for water fittings, and oil fittings but seems like it can't stand up to fuel. So my question is what are you guys using to keep these sealed up from leaking? Thanks for the help in advance
I bought the new boat about a month ago and it had the holley red pump, the fuel pressure wasn't high enough, and the red pump wasn't sufficient enough on flow. So I got a whole new system with the Holley blue pump and regulator. Installed the system using all -8 AN lines and fittings, and -8 AN to 3/8 for the pump, regulator, and filter. Well my 3/8 are leaking a little at the regulator in and out. I used liquid thread sealant, and you can see little flakes of it like the fuel is eating it. A buddy of mine did both his motors about 2 months ago, and he said it leaked everywhere that liquid thread sealant was used. It works great for water fittings, and oil fittings but seems like it can't stand up to fuel. So my question is what are you guys using to keep these sealed up from leaking? Thanks for the help in advance
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Yea, the fuel pump is mounted right where the mechanical pump was, in my set up it is the best place for it. The problem with the red pump is its only rated to support 440hp, which is why I just replaced it. My fuel pressure is good to go now with the blue pump and regulator. Blue pump is in the exact same spot the red pump was, and I had zero problems on first start up, it started right up no problem. I have it set at 7psi at idle, and it only drops about .5psi at WOT. I think I am going to adjust the pressure down a little actually to about 6-6.5psi at idle so I am 5.5-6psi at WOT.
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I've been using permatex #2 thread sealant since i was just about a teenager.
That was about 1,021 years ago. Plus or minus a few years. I've lost count.
That was about 1,021 years ago. Plus or minus a few years. I've lost count.