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Fuel pressure regulator install


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Posted

I got my new FP gauge and regulator. I immediately swapped in the new gauge, and it's giving a way different picture than the old one. It says I'm maintaining 4-5 psi, and that when I turn off the pump to let the carbs dry out a little, it takes longer than I thought for the pressure to zero out. I'm assembling the usual Rube Goldberg pile of brass fittings, and ordering up some flexible lines today. Been looking forward to re-doing my lines so I hope to post some photos as I go.

A buddy gave me this old Moon fuel block a couple years ago and it will be in there.

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Posted

Be careful what fuel hoses you buy for the manifold. A lot of the nice vintage-looking clear red fuel hoses don't stand up to the modern formulations of gasoline that we use. I spent 3 weeks trying to get some to seal; everytime I got it sealed up it would only take a day or two to swell up enough to leak again. Then I switched to a modern fuel-rated hose, not a leak since.

Marty

Posted

Yup, got a little snow mixed in with some rain a couple days ago.

I love the internet. When I went searching for brass fuel line nipples with 3/8" npt X 5/16" fuel line hookups, the local parts stores (4 of 'em) looked at me like I was wearing my tinfoil hat. I went to the McMaster-Carr website (thanks Don C) and ordered up 10 along with 10 very good quality all stainless hose clamps designed for the type of fuel line tubing I'll be using. They shipped the very next day and I got 10 of each for about the same price I would have paid for 3 or 4 locally, if they had them, which they didn't.:D So, when the price of brass goes up, I'll make a killing in the recycling market...

Posted

Still waiting on the blue polyurethane fuel line hose, but meanwhile I received my McMaster-Carr package. I shortened the 3/8 npt X 5/16 hose barbs a couple of notches, quick work with my Dremel. They look a lot better than the multiple fitting adaptor setups I began with. I got all the parts together and installed the brass with lots of Hylomar sealant. The threaded holes in the Moon fuel block look ok in the photo but they are really really bad.

The regulator comes with a sturdy bracket. I decided to mount that on the outboard side of the heater box where it's far from the exhaust system. I got the regulator all mounted today and next step is the fuel block on the firewall. I think this setup may solve some of that carb leakage. I'll be able to dial down the pressure from 4-5 lbs to 2-3 lbs.

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Posted

looks like a holley fp regulator. i've been running the 0-4 psi version in my CJ for several years. these regulators are great, and the pressure stays where you set it, without varying. the nice thing is the extra outlet where you can plug a guage in to check the pressure and run the vehicle at the same time, to find out what the best pressure for optimal running is. only need two tools to adjust - turn the allen's head in for more pressure, out for less pressure.

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