I have your average Holley fuel pressure regulator and I tried to run fuel line and it's too loose and the line itself can move in and out. As in it doesn't seal. Is there a special line that I need? I don't want to run AN fittings. Thanks!
Ok.... So what does the fitting look like you are trying to screw into it? That takes 3/8 pipe fittings... They make barbed fittings that fit for 5/16 and 3/8 fuel hose.... Ace Hardware, Lowe's, even auto supplies.
Those look like 3/8 NPT. Pipe thread, not meant to screw a fuel line fitting into. You mention “fuel line moving in and out”, sounds like you need an NPT adaptor to tubing fitting adaptor of some description.
Agreed, 3/8 npt on the outlet ports, but it’s 1/2 npt on the inlet port on the bottom. I have used those regulators for years.
Carry an extra...for me they have been known to fail. Replaced with one from Aero Space Industries.......no more failures.
Mine is made for a 3/8 line. I suppose you could use an AN fitting, I am just using hose barbs on mine and a little stub of flex line. It makes it easy to plumb and also serves as a vibration damper.
Yep I'm using the barb style. It works great!!! Thanks everyone. Sent from my SM-J327P using The H.A.M.B. mobile app
This is mine, Holley 12-841 I think. 3/8 NPT inlets and outlets, I went the other way and converted NPT to AN fittings