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Replacing fuel line to generator

September 05, 2014, 10:30:36 pm

I have a small leak in the fuel line from the fuel pump to the filter.  I am going to replace that line and the other small line from the filter to the injectors.  After reading that others have had this problem and ended up replacing the supply line all the way back to the tank.  I know that I am not going to replace the line myself after reading the tank must be removed (or cut the floor).  My first question is what to expect an average time to remove the tank, replace the line and replace the tank?  There is a YouTube video of a guy replacing the line without removing the tank.  My second question is has anyone completed the task without removing the tank.  Thanks,  David

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Re: Replacing fuel line to generator

Reply #1 – September 05, 2014, 10:47:19 pm

I had the same problem and watched the you-tube video. On my coach the video was not accurate because the problem was on the supply line, not the return. I found there was lots of slack in the supply line and I spliced the cracked line in the bend to the gen and it worked fine. After I complete every project I have to do, I will pull the tank and replace the hose from tank to gen fuel pump. My FT is old and yours could be different. Mark

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Reply #2 – September 05, 2014, 11:39:42 pm

David, if the tank is not coming out I would suggest that cutting the floor is an easy option (unless you have it finished with ceramic or wood. With the floor hole you have direct access to the fittings and the ceiling "tunnel" that it goes thru. I do not know if there are any ty-wraps around the bundle of wires /hoses etc that would make it difficult to pull out line.
 I would think the time is 1/4 cutting a hole compared to taking out tank( and the mess of fuel etc)
JohnH

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Reply #3 – September 06, 2014, 07:26:11 am

John, I saw your previous post regarding the hole but, we do have 18" ceramic tile so that is not an option for me.  That "outside the box thinking" is what this forum is great for and that is what makes it so valuable.  David

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Reply #4 – September 06, 2014, 08:33:40 am

If this is the fuel line that is leaking I would not mess with the supply lines. Also there are lots of straps and wire ties holding bundles of hoses and wires together.  The wire ties can be cut and replaced but the straps are very difficult to remove and replace.

Jason

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Reply #5 – September 06, 2014, 08:42:06 am

Sorry my arrow and text box did not show up on the picture but it is the gold hose between the pump and the filter.

Jason

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Reply #6 – September 06, 2014, 07:44:05 pm

Jason, yes the easily accessible line are the ones I am going to replace now.  I am confident that all the lines are original.  My thought is if they are cracked and weeping fluid in any of the hoses I can see then that same condition exists in area I cannot see also.  I really do not want to find a leak in some campsite somewhere and not able to have a trusted mechanic available.  Just my thoughts.  What do others think?  I welcome comments.  Thanks, David

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Re: Replacing fuel line to generator

Reply #7 – September 06, 2014, 08:32:07 pm

Based on reports of others who have replaced their fuel lines, I would estimate that you have two to three more years before you need to worry. Of course, if you want piece of mind and have a couple of coach bucks available, do it now and forget about it.

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Reply #8 – September 06, 2014, 10:43:31 pm

 david, I am sure you must have a couple of spare tiles for that (just in case thing) and if so why not pull up the ones in the right plce, cut the hole, fix it back and put new tiles down?
Hey easy eh?
JohnH

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Reply #9 – September 06, 2014, 11:09:56 pm

Today I replaced the fuel supply and return lines on the generator, all after the supply lines from the tank.  I needed 3/16" for returns, and 5/16" for the supply side hoses.  The hoses on the generator were painted, and I would guess the originals.  The coach had the lines from the tank to the engine and the generator replaced when they were leaking, in the fall of 2012.

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