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Topic: Fuel lines (Read 1606 times) previous topic - next topic

Fuel lines

Has anyone replaced the fuel lines to the Aqua Hot and Generator on a 1999 40 ft. u320? I am just now getting to some of the problems on the coach I purchased and the A.H. line is pulling air and the generator line has been spliced near where the lines go into the center of the coach near the fuel tank compartment. I used search and found that all coaches are not the same as some had smaller fuel tanks you could access by removing the propane tank. With this one there is no access through that area. I am about to try to pull the tank but don't know if there is enough slack in the fuel lines to do that. Foretravel must have plumbed the fuel lines before putting the body on the coach.
 Thanks for any information that might be available
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 lines

Reply #1 –
Many have.  Lots of stories in the Forum archives.  Try searching for "Generator fuel line replacement yyyy Unnn" and see what pops up and then look for your year yyyy and model Unnn.

If you add your coach information into your signature then folks can reply to your year specifically.  Something like 2001 U320 3610 #5879
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Fuel lines

Reply #2 –
Quote from: Roger & Susan in Home2 –
Many have.  Lots of stories in the Forum archives.  Try searching for "Generator fuel line replacement yyyy Unnn" and see what pops up and then look for your year yyyy and model Unnn.

If you add your coach information into your signature then folks can reply to your year specifically.  Something like 2001 U320 3610 #5879
I did that and nothing comes up I think I added the info on my signature but not sure. I an new to this forum and just learning
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 lines

Reply #3 –
Try this.

Fuel line replacement 1999 U320

In the search line.
Roger Engdahl and Susan Green
2001 U320 3610 #5879 (Home2) - 2014 Jeep Cherokee or 2018 F150
Hastings, MN

Re: Fuel lines

Reply #4 –
Yes, type that in and then make sure to change "this topic" to "entire forum".
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: Fuel lines

Reply #5 –
Quote from: wolfe10 –
Yes, type that in and then make sure to change "this topic" to "entire forum".
That found it! Not a very good outcome. Either cut a hole in the floor or remove the tank. I will  take the remove the tank option.
Thanks for the help
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 lines

Reply #6 –
Quote from: craneman –
That found it! Not a very good outcome. Either cut a hole in the floor or remove the tank. I will  take the remove the tank option.
Thanks for the help

Ran my tank way down so my mechanic buddy could lever the tank out one side
"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: Fuel lines

Reply #7 –
There will be enough slack in the old fuel lines to pull the tank out, so long as you disconnect them as soon as they are exposed.  Foretravel laid the slack up on top of the tank. 
Robert
Build # 5304
1998 34' U270 Cummins 6CTA8.3

Re: Fuel lines

Reply #8 –
I have a 295 and cut a hole in floor (easy to do) right where they are and then put the panel back and glued and screwed it in place. I wanted to see if mine were cracked but they were ok thank goodness. I had carpet in LVG room when I did that so simple.
JohnH
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Fuel lines

Reply #9 –
Quote from: rsihnhold –
There will be enough slack in the old fuel lines to pull the tank out, so long as you disconnect them as soon as they are exposed.  Foretravel laid the slack up on top of the tank. 
The fuel tank is out! My 1999 u320 did not have enough slack to get to them with a wrench when the tank was being pushed to the passenger side. I had to use a 2 ft. extension with a crows foot to unhook the lines. It would have been impossible to reinstall them without changing them and adding 2 & 3 ft., to the hoses. I will post pics and the lengths and sizes as I will use the old hoses to pull the new ones in. There was no mention in the posts I read about fuel line replacement of the drain plug which protrudes into a recessed hole in the bottom of the fuel tank bay. This must be removed to slide the tank out. The hoses were severely cracked. 
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 lines

Reply #10 –
FT removed my tank out the driver's side.  There was enough slack to detach hoses as soon as they were reachable.
Regards,
Brett

'99 42' Foretravel Xtreme
'14 Brown Motorsports Stacker
'05 Chevy SSR
'02 BMW R1150R

Re: Fuel lines

Reply #11 –
Quote from: amos.harrison –
FT removed my tank out the driver's side.  There was enough slack to detach hoses as soon as they were reachable.
When I post pics you will see my lines are on the passenger side of the tank
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 lines

Reply #13 –
Quote from: jerrett –
Craneman
I am not sure this will help but look at my posts on fuel line replacement

First step to fuel line replacement (Removing tank covers)

There is also a second step and a third step

Jason


Wish I had read the second and third steps as it may have helped. The tank is completely out of the bay at this time and tomorrow I will buy 35 ft. each of the engine fuel line and 20 ft. each of the generator and Aqua-hot fuel lines., I am buying a little extra so I can use the old lines to pull the new ones through. when done I will post the exact length and sizes and pics of the project.. Your pic here is exactly what my tank looks like.
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 lines

Reply #14 –
Quote from: craneman –
The fuel tank is out! My 1999 u320 did not have enough slack to get to them with a wrench when the tank was being pushed to the passenger side. I had to use a 2 ft. extension with a crows foot to unhook the lines. It would have been impossible to reinstall them without changing them and adding 2 & 3 ft., to the hoses. I will post pics and the lengths and sizes as I will use the old hoses to pull the new ones in. There was no mention in the posts I read about fuel line replacement of the drain plug which protrudes into a recessed hole in the bottom of the fuel tank bay. This must be removed to slide the tank out. The hoses were severely cracked. 


I think you pulled the tank to the opposite side that I've seen anybody else pull it to.  Everybody seems to pull it out to the driver's side, on mine all the return fittings were on driver's side along with gen supply.

The bottom drain also surprised me until I figured out what it was causing everything to hang up.  I mentioned it a bit here (too late now).

Old Fuel Lines
Robert
Build # 5304
1998 34' U270 Cummins 6CTA8.3

Re: Fuel lines

Reply #15 –
The fuel tank is back in. Jarrett posted many pics which helped a lot. If you search "fuel line replacement" and read his posts there are three steps in different posts. All I can add is when you drill out the grill to get to the fuel return line, the line is tie wrapped to the line from the fuel pump and you have to disconnect it from the pump to get the return line out. At that point it would be advisable to change that line also as the labor is already done. This is only for a 1999 40 ft. u320 other lengths and years and models are different. It takes 35 ft. of 5/8 line 40 ft. of 1/2 line and 60ft. of 3/8 line to do all the fuel lines for the engine, Aqua-Hot and generator. I am showing some of the pics of the job.
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 lines

Reply #16 –
Craneman
Good to hear it went well for you.  It is a tough job and can not be hurried.  My most difficult part of the job was removing and reinstalling the tank as it was so tight.

Jerrett
Jason
1999 U320 36'

Re: Fuel lines

Reply #17 –
Good job Craneman! What type/brand of fuel lines did you end up using?
Richard & Betty Bark & Keiko our Golden Doodle
2003 U320T 3820 PBDS
Build # 6215
MC # 16926
2016 Chevrolet Colorado 4X4 diesel

Re: Fuel lines

Reply #18 –
Quote from: rbark –
Good job Craneman! What type/brand of fuel lines did you end up using?
Goodyear. very expensive 5/8 was $6.60 per ft. 1/2 was $5.64 per ft. and 3/8 was $4.52 per ft. It has 300 psi rating and much better construction than the original Airquip.
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