Generator vapor locking
So I've been trying to track down this issue I have been having with my 5500 Cummings/Onan generator. It will die out intermittently. I finally tracked it down to it dies when you hit a very rough hig...
Forum Discussion
PastorCharlie wrote:
On mine I replaced the fuel pump and solved all the problem.
My first thought also. Gasoline will boil at 180 degrees but I think the fuel pump gets a bit wonkers first and shuts off.
I would hold off doing and owner mods to the shell of the generator. Cutting vents or such is a bit of a last resort option to me considering the difficulty to restore to original state. The 5500 is very common, has been around for a number of years and is designed to keep it's self cool with all the access panels in place. If there was a cooling issue it would show up in just about ever generator in use and wold be an endless thread on the various RV forums.
