Fuel PSI Gauge

[DALEDOZER]

Got a fuel psi gauge, and a "install kit" which had some fittings and a length of tubing. The tubing is the same as what came with my boost gauge, pretty much a small air line, don't know the size off the top of my head. Is this OK to use for a fuel psi gauge, or do I need to run a larger line? I do have it on the truck now and it seems to be working fine other than it does not seem to react to the pressure changes very fast.
One more thing, I am running 5 psi at idle with the stock diaphram pump,
this sound right? and zero when gettin on her, I know thats no good.

[PToombs]

Air line! Yeah, that's the same stuff I got on mine. Did you use an isolater? 5 psi at idle is ok, sounds like a piston pump upgrade is coming! Mine reacts real fast, do you have a needle valve on the engine end? Most guys, me included, use that to choke it down and take out the pulses. Truck still shut off?

[DALEDOZER]

No isolator, does not pulse, just slowly moves back and forth. I dont know about this needle your talkin bout I am supposed to get the rest of my parts for the piston pump upgrade tommorrow from cummins, already have the pump, and yes she still is shuttin off good. I put a second gen intake horn on over the weekend, seems to spool much better. Huge restriction, could not believe how narrow the opening is.(on the 1 gen.)

[bgilbert]

Send it all back if you bought mechanical. This is if you want a permanent FPG. If permanent, the best route is a Westach electric FPG. 0-30psi.

If temporary to periodically check FP, then a mechanical is ok. I like to use a 30psi boost gauge. Pressure is pressure btw.

Our mechanical lift pumps love to kill mechanical FPG's. Slowly the gauge will start to tick, sway, then go crazy, bouncing from 0 to 30 like wiper blades. BTDT. Especially with the big bad piston pump. Some guys have gotten away by using a snubber or needle valve barely cracked open.

That boost tubing worked for me in the past til I got the Westach electric gauge. Then a section of grease hose, I'm sure can be ordered with the gauge from Geno's or comes with it. Or I used a section of hydraulic hose with 1/8npt male/female ends to hook up at the tapped banjo bolt, and the Westach sender.

[DALEDOZER]

Hey thanks for the great news Bill . It's pretty much all mounted and paid for now, guess I'll just wing it. Will this be accurate just to get some readings pre and post lift pump install?

[bgilbert]

Yes it will be accurate for awhile. Get a snubber (don't know where you get one of these, nor do I know what they look like), and get a 1/8npt needle valve available at a hardware store or fitting/hose shop. Time to do some plumbing if you want that gauge to last. You didn't get it from PDR did ya ?

[PToombs]

If you put in a needle valve, you can shut it off if you have a problem. I got mine at Graingers. Blacksheep4x4 on TDR has gauges and stuff, an isolater is about $60 from him. It keeps fuel out of the cab, goes in between on the line, fill w/ antifreeze on gauge side. I just put a sleeve over my line, sloping down hill.

[wannadiesel]

A year and a half later, my $10 mechanical gauge still works. I have a snubber on it, though.

[DALEDOZER]

Needle valve-check, snubber-check. Every thing is as clear as mud now. Bill, got my Isspro gauge locally for $35-$40. Was hoping to keep all my gauges matching.

[PToombs]

Now I suppose you want the Grainger part number for the valve huh?
Darn kids these days, want somebody to do everything for 'em..............

[DALEDOZER]

UMMMMMM, sure!

[PToombs]

Jeez! 6MN31, 1/8 inch needle valve. It's like, $6 or $7. Male on one end, female on the other. It screws into the banjo, then your adapter screws into it.
Next you'll want me to do it for ya!

[DALEDOZER]

How bout you just mail me one already installed in a banjo bolt? Put my lift pump in last night, 15 psi! Makes me feel better. Now I am ready for a 14mm head, can you send that with the needle valve and banjo bolt?
Thanks again Pete, maybe I will by you a shot or two of yagermiester at SOP.

[bgilbert]

I ain't supplying the yager at SOP, I brought the 90 cans/bottles of beer last year LOL, so I'm good for the beer... course I just gotta get someone to drink some with me .

[DALEDOZER]

ALLLLL RIGHTTT, Bills buyin, thanks bud.