Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > GENERAL DISCUSSIONS > Tow Vehicles & Towing
Click Here to Login

Thread Tools Display Modes
Old 05-30-2019, 12:35 PM   #1
Montana Master
Slufoot733's Avatar
Join Date: Nov 2009
Location: Wampum
Posts: 566
M.O.C. #9928
Fuel pump to help gravity feed aux tank.

Has anyone added a small 12 volt fuel pump to 'assist' the flow of fuel from the bed mounted gravity feed aux tank? I have a 35 gallon tank on the bed with the standard gravity feed set up. I added a 12 volt, normally closed, solenoid valve that stays closed unless I activate a switch. But I find that the trickle of fuel is so slow that the truck seems to use fuel faster that it get replenished from the aux tank. I found a small 12 volt universal fuel pump and added it to the line. It operates at the same time as the valve. When the valve opens the pump runs. It doubled the fuel flow and works great.

However! It also pressurizes the truck tank. I find if I let it run for more than about ten minutes, then open the fuel cap, I get a pretty good hiss as the air escapes. I may have to design an air vent that sends the air back to the aux tank.
"What happens at camp stays at camp"
2018 3121RL
2016 Ford F350 SB SRW
Slufoot733 is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 03:22 AM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2020, vBulletin Solutions, Inc.