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Topic: Generator Fuel Lines (Read 949 times) previous topic - next topic

Generator Fuel Lines

UPDATE: James just called me back. Turns out the ones in the center of the tank are the pick ups (supply) and the two non-Aqua Hot lines on the pax side are the generator and engine returns. The forward one is smaller than the rear so we're thinking it must be for the genny. Whew! This is good news. I can fix the leak but I suppose it's just a matter of time before the supply goes. James says you have to pull the tank to fix it.

My generator return line is leaking. Anyhow, I'm trying to figure out which line is which. I've got access to both sides of the fuel tank. As you can see in the first two photos of the pax side, there are five fittings visible, four in line and one just behind (vent, I think). Of the four, I know the inside two are for the Aqua Hot. If the lines I want are these two, I'm in fat city.

Now, onto the other side. You probably can't see them but there are two lines at about the center of the tank (40" inboard). I don't think there is any way to get at these without pulling the tank, drilling through the floor (have a PM in to Dick&Sue) or ...

Anyhow, I've got a call into James Triana at FT asking which are the supply/returns for the genny. Anyone know for sure? Thanks.
jor

(James just called; he's trying to find out. My fingers are tightly crossed)
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Re: Generator Fuel Lines

Reply #1 –
A couple of years ago I had a generator fuel line leak.  I replaced the lines with the same expensive lines that FT installed.  If I had it to do over, I would use just a good fuel line approved for diesel.  It doesn't make sense not to replace both lines at the same time.  I worked backwards from the generator as it is easy to tell which is which at the generator.  I think it took 32 ft of hose, but my diesel tank and propane tank locations are reversed as compared to your coach, so you may need less hose.  It wasn't easy getting to the pipe fitting in the middle of the tank.  You need what is called a crow foot flarenut wrench on an extension to remove the fitting.  A set at Harbor Freight is $12. The hose that FT used just pushes on to a barbed fitting designed to work with that hose, but the hose has to be sliced lengthwise to remove it.  Be careful not to damage the barbed fitting when cutting the hose.  Another type of hose might not work with the barbed fitting.  Trying to think of the name of the hose, Aeroquip socketless, just looked it up.  I posted about doing it. 
Jerry Whiteaker former owner 96 U270  36' #4831 Austin,TX-Owner Mods LCD TV w/front cabinet rebuild - LCD TV bedroom - Dual Central AC, either can cool coach w 30 amp - Skylights at roof AC openings - Drop ceiling for ducting of AC - Shower skylight white gelcoat/wood/epoxy frame - Air Springs/Shocks replaced - 2014 CRV - 8K Home Solar - Chevy Volt

Re: Generator Fuel Lines

Reply #2 –
Thanks, Jerry. I know the tool you are talking about but I just can't see how I could get it on the fitting. It's buried under a ton of cables. I stuck a pole in there and tried to move the around a bit to expose the fittings but didn't have much luck. You're giving me hope though and I'll take another look at it tomorrow. Sending you a PM.
jor
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Re: Generator Fuel Lines

Reply #3 –
One of our group, several months ago, described how he cut an access hole through his floor to get superb access to these fittings.  I thought it was a super idea and far better than removing the tank.
Audrey & Harvey Nelson
2000 U-320, 40' towing 2014 Jeep Grand Cherokee
nelsonah@ieee.org

Re: Generator Fuel Lines

Reply #4 –
Quote from: Harvey Nelson –
One of our group, several months ago, described how he cut an access hole through his floor to get superb access to these fittings.  I thought it was a super idea and far better than removing the tank.

Took a bit of searching - Dick and Sue are the ones who did this.  Photos in the post below:

Replacing Generator fuel line on '99 U320

Michelle
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Generator Fuel Lines

Reply #5 –
FOLLOW UP
Been under the weather but I'm back now. Here's what we ended up doing on our leaking generator return line. Didn't have the courage to go the Dick & Sue hole-in-the-floor route so we ended up splicing the supply line near the tank, just before it passed through the wall. We did the return line completely as we could get at it from the side after removing the kick plate and fiberglass tank cover. Good to go now.
jor
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