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Topic: Fuel return line  (Read 309 times) previous topic - next topic

Fuel return line

Hi friends
I bought a FASS fuel system for my 1999 u320 ISM/M11 on Friday and installing on Monday.
The question is does anyone know were the fuel return line is going back to the tank so I can tie into it.
Thanks
Now 1999 U320 36' with ISM/M11
600 amps hours of lithium ion batteries.
Jeep gladiator tow vehicle for exploring.

Re: Fuel return line

Reply #1 –
It is not recommended to tie into the return line with the FASS system. Do a search for the reason as it was posted somewhere.
1999 40 ft. U-320 wtfe build 5563 Chuck & Lynda's "Rollin' Inn"  2030 watts solar
prev. mh's 71 GMC 5 yrs. 73 Pace Setter 1 yr. 78 Vogue 5 yrs 81 FTX 40ft all electric 18 yrs. 1996 Monaco Signature 3 yrs.
2014 Grand Cherokee Overland
Dream as if you will live forever. Live as if you will die today.  James Dean

Re: Fuel return line

Reply #2 –
Scott said they now make one that can be teed into the return line. Mine has its own return line.
The return line is a 1/2 inch and it will probably be inside the frame right by the fuel pump and it will
come directly from the engine or if you have a fuel cooler it will come from the radiator area.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport

Re: Fuel return line

Reply #3 –
Quote from: Ahb867 –
Hi friends
I bought a FASS fuel system for my 1999 u320 ISM/M11 on Friday and installing on Monday.
The question is does anyone know were the fuel return line is going back to the tank so I can tie into it.
Thanks
Yes this depends on which model you purchased. One can share a return and one wants a  dedicated return. They also have a return adapter that will allow you to share a return line. I dont think we have enough room to use it though. I would on a retrofit consider installing a additional return like Peter did or combine the aqua hot and generator returns and dedicate the extra return for the FASS
FASS fuel system install upgrade

Fass fuel filter system
Scott
 

Re: Fuel return line

Reply #4 –
I ran the wires up to the back of under the bed with all the other electrical and put a relay there and got
the keyed power from at the back of the coach where the start button is as that is key power. I also removed
the wiring and the switches from the Winns system.
Peter and Frieda Morin
1999 36ft. U320 Foretravel
Build # 5436
1998 Suzuki Sidekick Sport