Open just a hair

 

I'll throw on the needle valve tomorrow. Any ideas on how to light up the gauge at night?

 

what about using copper tubing wouldnt that stop it from breaking

 

Theres too much vibration and the copper will eventually fail. I use 1/8" parker Paraflex tubing which is good to 250 psi. You can also use dot approved air brake line. Good for petroleum, good for at least 100 psi, and good to -40F.

 

You might have to change the mounting location but you could mount some LEDs close to it and shine them on the guage. (a gauge with a back mounted pressure port would probably be better for this).

 

what about on a 12v i would like to build something like that

 

Idk what the FF housing on the p pump 12valves looks like but I don't see how this setup wouldn't work for a 12 valve of course the pressures would be a lot higher than what I see on my 24 valve, a 0-100psi gauge like the one i used would work pretty good. BTW i installed the needle valve this afternoon

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Throwing some LEDs around it would provide plenty of light I would think

 

For a 12V use a 0-60 psi guage and use the front 1/8" FNPT fitting on the fuel filter housing (post filter) for the fuel pressure sample point (just like the pics at the start of this thread). Alternately, you can tap a 1/8" FNPT hole in the P-7100 inlet banjo bolt and install your needle valve there like this:

 

you dont think it will get over 60psi on a 12v?

 

That gauge is just what I had to work with from the local Home Depot. It shows the pressure in 2 pound increments, IMO the range of the gauge is your own personal preference.