Help Me Find A Fitting For My Fuel Pressure Gauge

T

Thunderbolt

Well-Known Member
OK, i live in the metric world ;) and this AN NPT UNF is confusing to me.

i have this old but new fuel pressure gauge i want to use, it has 7/16-20 threads (yes i tried a wheel nut:D)
and maybe its a -4 AN type?
I want to use a small rubber hose and need something that looks like this, if it exists?:

sum-220766b_ml.jpg
 
I generally visit a local hydraulic hose fabrication shop,
show them the potential problem you want to solve,
most have large cabinets with literally hundreds of drawers,
with odd or less common brass and stainless fittings,
most can easily make you about any combo of ends,
on any hose you might want or sell you individual fittings

https://www.mscdirect.com/product/details/48757587

4875758-23.jpg


https://www.mscdirect.com/browse/tnpla/01045889?cid=ppc-google-New+-+Hose,+Tube,+Fittings+&+Valves+-+PLA_suNZ5cIgb___164110844610_c_S&mkwid=suNZ5cIgb|dc&pcrid=164110844610&rd=k&product_id=01045889&gclid=EAIaIQobChMIgLGYiJbO4gIVXZ7ACh2QtQsEEAQYAiABEgIXuPD_BwE

0104588-24.jpg




https://quadrajetparts.com/fuel-inlet-fitting-p-1832.html
https://www.mscdirect.com/browse/tnpla/80258536?cid=ppc-google-New+-+Hose,+Tube,+Fittings+&+Valves+-+PLA_suNZ5cIgb___164110844610_c_S&mkwid=suNZ5cIgb|dc&pcrid=164110844610&rd=k&product_id=80258536&gclid=EAIaIQobChMIpI-Ys5bO4gIVAdbACh22aABdEAQYASABEgI-qvD_BwE

try a google search for
"female 7/16" / 20 thread, male barb fittings"
 
Be carefull with rubber hose and E85 Fuel.
The rubber will degrade fast.
Fuel leak and a potential fire hazzard.
Teflon lined fuel race hose with an exterior stainless steel braided cover is best.
 
Those look like they will work, but will take weeks to get shipped, and i have visited the local hydraulic shops, i live in very small town, but i may end up taking a closed end lug nut and drill and tap a 1/8 NPT hole and put a hose fitting on it :D
 
My experience with E85 is that its really no problem with rubber, no more than the gas we have here, i have used i 8 years now, i do use Lucas E85 fuel treatment in winter storage and mix in some gas (maybe makes it E60) if i in an emergency i will have to drive the Chevy in the winter. E85 is used by the majority of turbo tuners in Sweden and they seldom have issues, the foam in fuel cells is one issue, and something that looks like permatex gasket sealant can clog injectors, not sure what that is... and not something that regular happens.
 
Are you sure that there is no taper to the thread on the fuel gauge? A picture would help.

I will take a look through my fittings tonight.
 
Last edited:
That changes things, then. I looked through my fittings and was sure that your gauge was going to be 1/4 - 18 NPT.
What your picture shows is a male inverted flare, like an AN fitting uses. I'm going to have to do some investigating now.
 
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