daugen wrote:
Our 2013 Itasca Sunstar 27N comes with the 2500kw Onan gen running on gasoline. It was always hard starting, taking up to ten seconds of cranking. We were then told to hold down the stop button to prime it first. Ok..., No difference whatsoever in starting.
Then yesterday, after running for about an hour, the gen stopped.
Smell of gasoline from outside the compartment. It was late, so I waited until this morning to investigate and let it cool down.
Ok, what should I look for? 24 hours on gen. Will check all breakers first, then will see if there's a fuel filter in there. Then will try to restart. The oil is fine...
It's the smell of gasoline outside the motorhome that concerned me.
That I need to find the source or cause of for sure.
I'm not a mechanic, and the new rv is headed back to the dealer anyway, but I'd sure like to figure this out today, if that's possible.
After I check on it, I'll let you know what I find, which I expect to be nothing visible. There is a manual start on the gen right on it and that's where I'll see if she fires up.
It is obvious that you have some type of fuel leak. I recently had a similar problem with my 2009 onan.
Here is how I found my fuel leak.
1. Open up the cover so you can see the generator..
2. locate the carburetor and the fuel line that runs to it.
3. if yours is like mine you have a start button located right at the generator itself.
4. hit the prime function and see if you can find the leak..
5. especially look at the fitting going to the carburetor.
(on my genny.. this fitting was a fuel filter.. Onan has replaced it with a fitting doing away with this filter.. and only has one at the fuel pump.. It is a known problem with these fuel filters leaking at the carb. that's why Onan no longer sells it.)
6. if it isn't leaking at the carb.. just follow the fuel line down to the fuel pump checking for leaks.