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Topic: pressure in fuel tank (Read 418 times) previous topic - next topic

pressure in fuel tank

filled up about two weeks ago and drove home. Went out yesterday to look at space surrounding filler opening. Trying to determine if filler surround will remove with just the screws that hold that assembly on. loosend the filler cap and got doused with fuel. Should this happen? Pressure from return line?? After two weeks?? The black area around the  filler opening is riveted to thematerial that is screwed to the body....

Jim

Still fiddlin' with the door that broke it's plastic hinge pins.
'92 Grand Villa 36' w/8.3Cummins mechanical
ORED
Build#4062

Re: pressure in fuel tank

Reply #1
Vented fuel cap replaced with non-vented one?

Does your tank have a vent line. (not familiar with that part of the ORED).  The other Foretravel models of that vintage do have a vent line-- comes out on passenger's side of front bulkhead just inboard of the tire/vertical brace.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: pressure in fuel tank

Reply #2
For what it is worth, Brett, my 1989 ORED has the vent line just under the fuel cap. If one removes the fuel cap the hole is visible.
Fill the tank up when it is cold. Open the cap when the fuel is warm---expansion of fuel & air in tank. Had it happen to me at Fredricksburg City CG in OK. Only thing saved me from a "big" bath was that my hose clamp was a tad loose so fuel was seeping out on the inside of the filler wall mount.
Nitehawk,  Demolition Lady, & our NEW master, Zippy the speeding BB cat.
1989 Grand Villa 36' ORED
Oshkosh chassis, 8.2 DD V8
2006 Saturn Vue AWD

Re: pressure in fuel tank

Reply #3
Norm,

Yes, have seen that-- fill all the way with cold fuel.  Park it and with temperature rise, fuel expands and pukes out.  Don't know about on ORED's, but on other Foretravels, it can "piddle" on the front bulkhead from the vent line.
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: pressure in fuel tank

Reply #4
Thanks ,folks - I'll look it over. Sounds like it shouldn't do that...

Jim
'92 Grand Villa 36' w/8.3Cummins mechanical
ORED
Build#4062