Good point, or just an override switch to trigger the relay for priming. How would it start under normal conditions. Would the ve pump be able to pull enough fuel to start and run long enough to build oil pressure?

 

The VE is full of fuel, the truck will start and idle for about 10 seconds with no fuel supply at all.

 

So is 10 sec long enough to build oil pressure when its -10F? Maybe thats when you hit you're over-ride switch.

 

The lift pump would have been supplying fuel while you were cranking.

Your oil pressure switch would be a low pressure one, say 5-8 psi.

I don't think there would be an issue with it losing prime before it built enough oil pressure.

 

Yep yep that makes sense. It would be a bit more wiring than a simple on when the ignition is on, but would be safer and the pump wouldn't run if you only had the ignition on but the engine not running.

 

It runs 175, 10 bucks off if you're a compd member. Yes Crossy, it is LOUD, i can hear it over the engine and exhaust at an idle, I hear they make some rubber isolators so you don't have metal to metal contact. I might have to try those if it starts bothering me. I ran my trigger from the shutoff solenoid.

 

If your using a bypass regulator, what would be the point of shutting the pump off? Just curious, The bypass regulator will keep the pump cooler, and draw less juice. I just did this on my Plow rig is why i'm asking.

 

A buddy of mine has one in his car and its super quiet, in my opinion. He has it mounted to his trunk floorboard on rubber mounts. Maybe try mounting it to the bottom of the box or something?...

 

As discussed from a safety concern, if you were to be involved in a roll over, the pump won't keep pumping fuel all over the place.

 

couldn't you just put it on a toggle swittch on the dash and flip that on right before you start? My gauges are on a switch so i would prolly put it right next to that

 

I used rubber isolators on mine, it is pretty quiet.

https://www.surpluscenter.com/item.a...6&catname=misc

 

Ahhh i see... i wasn't thinking about it from that angle.

 

Bump. Ramrod is looking for this.

So...

1. Fuel goes into the sump
2. 5/8 line to the 100 micon filter
3. 100 micron filter hooks to the pump
4. Pump sucks the fuel from the sump through the tiny filter,
5. pushes it through 1/2 line to the filter head/napa filter.
6. 1/2 line from the filter head to the regulator, regulates the psi and puts it direct into the injection pump inlet,
7. SHut the truck off and fuel comes out the injection pump return and goes back through the regulator return outlet back to the fuel tank.

What'd you do about the factory mechanical lift pump and filter ? delete plates?

My other question is, what's the filter head you have on the frame? PN#? is it the factory one off the engine you didn't need anymore?

 

Thanks CS, a very big help. This is how I was planning to do the filter setup I just wasn't sure. I will bookmark this thread when installation comes around.

 

I don't know how I missed this for so long, to answer your questions Crossy's Son, I just left the OE lift pump right where it was. Also left the stock filter head in place, the filter head on the frame is another Napa part. I don't know the part number, it has 2 inlets and outlets, I just put pipe plugs in the ones I wasn't using. One more thing, like BGilbert said in one of the posts, it is very important for the pump to be gravity fed- the pump does not suck fuel, it only pushes it. Sorry for taking so long.