What is the GPH volume of an '06 with a stock in tank lift pump? My truck is a short bed, if it makes any difference. Thanks John

 

straight from the mfg.

Verify proper low pressure fuel supply to the high pressure pump: Perform the
appropriate fuel supply system flow test. NOTE: This procedure can be slightly
different depending on if the vehicle has an engine-mounted transfer pump or
the in-tank transfer pump. In a good low pressure fuel system, fuel flow of 560 mL in
10 seconds or better is expected for model year 2003 and early 2004 vehicles. In a
good low pressure fuel system, fuel flow of 590 mL in 10 seconds or better is expected
for late model year 2004 through 2007 vehicles

 

ok i am bored. will do the math for ya too.

since yours is an 06

590 ML in 10 seconds is acceptable standards.

590 x 6 (cause 6x10= a minute) = 3540 ml a minute

3540ml = 0.9351690613966799 gallons a minute

0.9351690613966799 x 60 (60 minutes in an hour )= 56.110143683800794 gallons per hour.

 

Cbrahs-Thanks for your response and doing the math.
Regards-John

 

welcome

 

Those AF guys are always showing off. As long as you're bored, got a value for the min/max pressure from the filter to the injection pump?

 

we test flow rates not pressures their theory is if it flows the 590ml in 10 seconds it has enough pressure to keep up but here is the funny thing they say about the pump.

this is a quote straight from the mfg. I just got a giggle out of the ALWAYS! I know they are talking about a FULLY stock truck but I know a few around here that can sure tax the lift pump

"The fuel volume of the transfer pump will always provide more fuel than the fuel injection pump requires. Excess fuel is returned from the injection pump through an overflow valve, and then back to the fuel tank."

 

Just a thought to add. Pressure is not something the pump produces. Presure is just resistance to flow...

 

Appreciate the info and understand the diff between volume and pressure. But, there has to be a measurable amount of pressure or the injection pump could draw a vacuum on the supply line. The reason behind me wanting to know was for the scale on my fuel pressure gauge. I settled on an Autometer 0-15 psi gauge. I'm more interested in quickly seeing a fuel pressure at a glance than trying to interpolate what the pressure is when the needle is somewhere between 0 and 15 psi on a higher scale gauge. What are the nominal fuel pressures on your truck, cbrahs? Inquiring Army Types want to know!

 

Well my Tech Manual does not have a little dude with HUGE hands pointing at the part needing to be removed! LOL..... only messing. old aircraft Arm vs AF crew chief jokes.

I searched ALL over Chrysler and did not find any pressure numbers. Only flow rates

 

I saved the "Mickey's Big Hand" visuals for the pilots. I pulled the glass off the back-up RMI and put a MM hand on the #1 needle. The Maj (CP) was ticked off, but the WO (AC) was pi$$ing his pants laughing. Amazing though, with all the interservice "rivalry" if someone yelled help, everyone would drop what they were doing and run to lend a hand.

I thought you had a FP gauge on your rig, no? If so, mind sharing the readings?

 

I remember playing jokes on pilots until the rat bstgs got me back flying from Chejudo Island over the ocean. I was asleep and only had my gunners belt on and they decided to pull some negative G's and woke me right up out of a dead sleep thinking we were going down. I yelled (did not hit IC button) and Capt. Graves had this crap eatin grin. Told him I was kicking is **** when we landed! LOL


No lift pump pressure on mine.. Only rail psi right now. Waiting to do the long bed conversion and while the bed is off, am going to install a FASS 150 and lift pump psi gauge.

 

Neg G's in a UH1 was the last thing you felt before all the rotating parts departed!

 

ya all the pilots in the 1's were students here at Kirtland. the 53 and 60 guys on the other hands were nuttier than a fruit cake and loved the power they put out. I miss being in and workin on them.

 

AMEN!

They were a hoot to be with! It was the only thing in the Army that was actually mine! We had a couple of ham fisted pilots that only flew once a month for pay and had the control touch of Quasimoto. It was nice be able to follow them thru their preflight, making like they had a clue, and put a Red X in the status block after they got strapped in. "Uh gee, sir, you must have missed this when you kicked the skid and slammed the door"