Testing Fuel Pressure - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 07-08-2009, 08:23 PM Thread Starter
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Testing Fuel Pressure

Hey guys, where exactly is the test port on the stock fuel bowl to test fuel pressure? What kind of fitting is it.. 1/8 NPT??

Thanks,
-Matt

'97 F-350 CC/LB 7.3L PSD 4x4 4.10's, Fresh Engine, Stacks, 7 Gauges, AFE, e-fan, BIG Kustom fuel system, 250cc
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post #2 of 5 (permalink) Old 07-09-2009, 01:10 AM
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Re: Testing Fuel Pressure

It's on the driver's side of the fuel bowl on the fuel pressure regulator. It's a Scraeder valve (just like a tire valve and usually has a valve cap on it). The shraeder fitting screws into the regulator with (I think) 1/8 NPT threads. If you take it off and connect something else, don't overtighten and crack the housing! Cheers!

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post #3 of 5 (permalink) Old 07-09-2009, 04:23 AM Thread Starter
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Re: Testing Fuel Pressure

Alright. Thanks!

-Matt

'97 F-350 CC/LB 7.3L PSD 4x4 4.10's, Fresh Engine, Stacks, 7 Gauges, AFE, e-fan, BIG Kustom fuel system, 250cc
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post #4 of 5 (permalink) Old 07-09-2009, 06:24 AM
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Re: Testing Fuel Pressure

Yep, it's 1/8th NPT. Make sure to put a good amount of pipe dope or tape on it, or it may leak pretty good.

Dave

'08 F250 6.4/Torqshift Spartan 310EL, Flo-Pro 4", White_monster air intake, RCD 4-link, RS9000's 584/1330
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post #5 of 5 (permalink) Old 07-09-2009, 08:26 AM
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Re: Testing Fuel Pressure

A good temporary guage is a well tank 0-100 psi guage, 1/8" nylon tubing (the same stuff air shocks use), and a couple of npt to 1/8" nylon tubing ferrule fitting adaptors. This can be had at any home improvement store. Run it out from under the hood and duct tape tape it to the hood cowling or a temporary run throught the wind wing window.

Definitely not for permanent install but good for a quicky check. Worked for me.
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