One off OBS fuel system

[kanuck15]

Alright this idea has been kicking around the OBS chat for a few days. Im working on a fuel system for our trucks using well odds and ends here and there. My main influence is Bill (alberta 7.3)
My OBS fuel system

As well as an interesting idea from Brett (dirtydiesel)

Either way the idea is a 10 micron filter before the 6.0 pump. afterwards a 2 micron filter for final filtration. now keep in mind the 6.0 pump has a built in fuel water seperator so we are good there. now thats Bills half. Brett gave me the idea of running 4 pressure lines into the 4 ports in the head and have the regulator on the main feed line. Whereas Bills set up has 2 feed lines and 2 return lines with the regulator on the return side. Im looking for any imput people have on this cause we are worried about air pockets with the 4 feed line set up. but doesnt the stock system have a deadend fuel set up??? again feel free to throw anything out there as its just a brainstorming idea now

[jethro]

i found ya but we need to find a way to put a regulator in the middle of the heads somehow tie them together and run that back to the tank and still be able to feed from both ends

[kanuck15]

i see what your saying. My big thing is as the stock truck sits where does the air go if there is such? doesnt it just go through the injectors? keep in mind i dont even see how the system we are coming up with would have air in it cause that pump would kick on soon as the key is bumped forward to the run position. with that regulator it will keep constant pressure on the fuel lines after it

[LowFlying7Three]

internationals OEM setup pumps fuel through the filter/regualtor then through each head separatley, then pumps the return fuel back to the tank.

i'm gonna do some reading on it, since i have a week off and a garage full of international literature lol

[jethro]

yep and with an airdog or fass style pump that eliminates the air before it gets to the pump. how bout on a commonrail? where does that air go? that is a dead head system is it not??

[jethro]

Originally Posted by LowFlying7Three

internationals OEM setup pumps fuel through the filter/regualtor then through each head separatley, then pumps the return fuel back to the tank.

i'm gonna do some reading on it, since i have a week off and a garage full of international literature lol

good plan you read and report back to us i am not a fan of reading

[LowFlying7Three]

Originally Posted by kanuck15

i see what your saying. My big thing is as the stock truck sits where does the air go if there is such? doesnt it just go through the injectors? keep in mind i dont even see how the system we are coming up with would have air in it cause that pump would kick on soon as the key is bumped forward to the run position. with that regulator it will keep constant pressure on the fuel lines after it

you would need to bleed it if the system was opened up for any reason though

[kanuck15]

So ideally we would need to run an airdog on this 4 feed line set up vs a 6.0 pump on the 2 feed line set up. I wonder if there is anyway to purge the system. see id run the distribution block a little higher than the ports on the head so the air would collect there. wonder how it could be made to purge or just put a schrader valve there so if a problem does arise it can be bleed?

[kanuck15]

Originally Posted by LowFlying7Three

you would need to bleed it if the system was opened up for any reason though

yeah. so why not put a bleed valve in at the top port on either head. just on the fuel pressure regulator that our trucks have stock?? little bit of lowes plumbing and thats simple enough right? one per head??

[LowFlying7Three]

i guess that may work, i have nothing stock to look at except the tank itself anymore