Need help with generator fuel line leak

[Medic318]

While on a recent trip with my 2003 national dolphin LX Model 6320 on a workhorse W22 I started the gen set and noticed a strong gas smell. When checking under the coach found gas was coming from the top of the fuel tank but am unable to see anything leaking we did a check and there was no leak with just the engine going with further investigation found that when the start generator button is pushed a slight delay and I could hear the sound of a fuel pump and the gas again came from the top of the fuel tank is there a connection on the top of the fuel tank and how do I get at it? If I have to drop the fuel tank is there any tricks to doing this or is it a shop only job? Also how would I drain the fuel from the newly filled tank. Any and all replies and suggetions greatly appreciated

[kennersonf]

Medic,
I have the same exact motorhome you do. In October 2005 I had the same problem. It turn out to be a rotted rubber fuel line going from the gas tank to the generator. I had Redlands Truck repair it for me. They had to drop the gas tank to replace the hose and the bill came to $235.00. They gave me the old hose and I did a lot of research. It turns out National should not have used this hose because it was not intended for fuel injection use and my generator is fuel injected. The coding on the hose showed Gates M08100. I emailed gates and they responded stating the M08100 is a 4219G Hose and not intended for fuel injection. I forwarded all the information to National and they reimbursed me for my costs. I will send you a private message and forward the email messages between myself and Gates as well as a copy of the letter I sent to National RV. Since my incident, another person on this forum had the same problem and I gave him the information. National RV (Matthew Margolis) denied ever talking to me.

[Medic318]

Thanks fred just read and responded to your private message do you know the number of the hose that should be on the coach as do not expect to get any help from WH or National Don