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Topic: Diesel fuel fill opening too small (Read 2429 times) previous topic - next topic

Diesel fuel fill opening too small

I will try again on this subject.
Our fill opening will let the larger--and now more common than ever, it seems--fuel nozzle only go a couple inches into our fill port. I have to hold the nozzle and keep it from bottoming out or the fuel sputters back from the air trying to get by the nozzle.
The nozzle is quite heavy and gets to be a real PITA after holding it awhile.
Has anyone found a tank opening to replace the small one, with the larger opening?
Our metal opening tube goes just a little ways down inside the coach wall and then has a rubber hose clamped on it that acts as an interface between the fill and the tank.
The fill opening has a flange that is bolted to the opening behind the locking fuel door.
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: Diesel fuel fill opening too small

Reply #1 –
Same. I will look into  it also .

Re: Diesel fuel fill opening too small

Reply #2 –
Nitehawk,

These are popular with the people around here that build welding truck beds.  You may find something on there site that will work better.  2-1/4 inch cab and chassis flatbed utility bed box truck Diesel tank gas...

Pamela & Mike
Pamela & Mike 97 U 320

"It's not what happens to you, but how you react to it that matters."

Re: Diesel fuel fill opening too small

Reply #3 –
A dicey situation with the nozzles, for sure. On our maiden voyage, I fueled at a truck stop and (stupidly) figured the large nozzle would work. Yes, it went in, but after fueling, the spring on the nozzle got caught in the opening and I could not remove the nozzle.
Hmm, a rookie move, for sure, I finally got it out and learned a valuable lesson!
1993 U-240 "La Villa Grande"..CAT 3116 w/ Pacbrake PRXB...Allison 3060 6-speed..
Previous: 1983 Airstream 310 turbo diesel, 1979 Airstream 280 turbo diesel
                                      Build # 4297
                                      PNW natives
                      Home base:  'Cactus Hug' (Ajo, Arizona)
                        DW Judy & Chet the wonder dog
                        Full-Timers 'Sailing the asphalt sea'

Re: Diesel fuel fill opening too small

Reply #4 –
Maybe disconnect the rubber hose and cover it.

Then take a Dremel Tool to the opening until it

will accept the larger nozzle? Wash the new

opening before reattaching the rubber hose.

Carter-

Re: Diesel fuel fill opening too small

Reply #5 –
Sorry Carter, I don't think the metal is all that thick. It would take more than the wall thickness to let the nozzle go all the way in.
Mike's post seems to have the solution so it goes on my list---after I get this darn mouse issue in our generator taken care of. I have to remove the exhaust, then remove the gen, then remove the shrouding, then remove the mouse modifications. But this all has to wait for dry weather as the coach is outside, next to the lawn.
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: Diesel fuel fill opening too small

Reply #6 –
Maybe you ought to  S H O E  G O O  that mouse?

Carter-

Re: Diesel fuel fill opening too small

Reply #7 –
Heck, got a great idea!! Catch the destructive cottontail rabbits that are devouring/killing my trees & flowers, and blaze orange painting their cute little cotton tails and then releasing them at a trap shooting range!! >:D  >:D
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: Diesel fuel fill opening too small

Reply #8 –
I remember having to use the automotive diesel pumps on the OREDS.

The pipe down from the fill hole was fairly long and if filling too fast would kick off the hold on on the nozzle.

Best help was to drop the jacks and then all the air then raise the front end up to the limit of the jacks travel. 

Front tires in the air.

Now it was a better downhill angle into the tank.  Would get the last 10-15 gallons in the tank that way that was nearly impossible level.

The full extension of the front drops the air in the front bags so when restarting the coach and taking the coach down the front would bottom out for a few minutes until air pressure built up to get back to ride height.

Careful as the rears are the parking brake.

I used to look for uphill fill lanes to accentuate the fill pipes uphill orientation.  Then drop and then raise the coach.

Wasn't faster but the non stop max fill helped
"Riding and rejoicing"
Bob
1997 U320 40' Mid entry, build 5132,  wtbi ce27, 4th owner
2007 Solara convertible
2 prodeco tech outlaw ss electric bikes

1095 watts solar
08 Ls 460 and a sc430
2000 Ford F-250 superduty 4x4

Re: Diesel fuel fill opening too small

Reply #9 –
Quote from: nitehawk –
Heck, got a great idea!! Catch the destructive cottontail rabbits that are devouring/killing my trees & flowers, and blaze orange painting their cute little cotton tails and then releasing them at a trap shooting range!! >:D  >:D
Rodent problems? I thought you were a hawk with ninja like reflexs, and rodents would not be a problem.

While you poking around on the fuel tank, you might look for someplace to connect an auxillary vent to help prevent the sputtering. Gots to be a solution, aside from modifying each truck stops fuel nozzles with a sawzall.
Old Phart Phred, EIEIO
89 GV ored 36' #3405 300 hp cat 3208 ATAAC side radiator, mountain tamer exhaust brake

Re: Diesel fuel fill opening too small

Reply #10 –
Fill up where they have smaller nozzles that your tanks was designed to use.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Diesel fuel fill opening too small

Reply #11 –
Another problem with the tanks on the ORED coaches was the fill hose goes in at about the middle of the tank, which makes for very slow filling to get full. I doubt that having a larger fill opening will help all that much.
previous 1984 35 ft ORED 250 HP 3208 Cat       
previous 1998 40 ft U295 CAI 325 hp Cummins
previous 2003 40 Ft u320 build #6140 450 Cummins M11.                                                         
1999 Mazda Miata
Ron, Nancy, Tipper the cat, Max The dog
1997 U 270 36 ft build number 5174 8.3 Cummins

Re: Diesel fuel fill opening too small

Reply #12 –
I don't seem able to intuit which diesel fillups have the smaller nozzles before pulling up to a pump. Maybe the stations should put up signs for us poor folks that drive these undersized fill opening coaches.
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: Diesel fuel fill opening too small

Reply #13 –
I Googled "diesel fuel nozzle adapter" and got a bunch of hits.  Apparently many diesel powered imports have small fuel filler openings that don't work well with common pump nozzles.  So they make adapters that go on the end of the nozzle, and stick down into the filler hole.  Don't know that this would help the situation under discussion, because you would still have to hold the nozzle in position...

At least you're not alone in your misery!  8)
1993 U280 SE 40' WTBI, Build: 4359
C8.3 300hp, 6-Speed, Exhaust Brake
960 watts on the roof (6 x 160)
Sorento (or BOLT) on a Kar Kaddy SS
"Nature abhors a vacuum"