Additional Onan Genset Cooling?
We just bought a new to us 2006 Winnebago Sightseer with an Onan 4000 genset. The first time we used the generator, all seemed well but after it ran 30-45 minutes it seemed to be having fuel issues. ...
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I'm not an expert be any means but maybe this might help you?
After similar problems you mention I did a complete tune up (all except adjusting valves)and put in a new fuel pump. Solved my problems. But I should of looked more closely before buying the new fuel pump. I often think maybe the fuel pump might of been my problem all along.
I bought the new fuel pump before taking out the old one because I never changed one before and wanted to see what I was up against.
The elec connection had one blade that had strange marks on it. I often wonder if the entire problem was the connection. Maybe after getting warmed up it would wiggle lose or loose contact? On my new pump I also packed in some elec grease.
I think you have something else going on other than temps of normal heat. They are made to work in temps that we have. Which surprised me because using a temp gun it gets pretty hot in there. (I don't remember the temps off hand).
Just a heads up about fuel treatment? I also did mine thinking that might be the problem and a good preventive measure for the RV's entire fuel system. And I really didn't know how the old owner took care of it. Turns out the fuel treatment (Seafoam) did a fantastic job of cleaning the entire fuel system. So good in fact that I fouled out 2 injectors at about 1,000 miles after treating the fuel system.
Following an "injector" shop recommendations and after getting injectors cleaned out, I changed out the fuel filter and then changed it again every 2,500 miles (twice) and then every oil change after that.
After similar problems you mention I did a complete tune up (all except adjusting valves)and put in a new fuel pump. Solved my problems. But I should of looked more closely before buying the new fuel pump. I often think maybe the fuel pump might of been my problem all along.
I bought the new fuel pump before taking out the old one because I never changed one before and wanted to see what I was up against.
The elec connection had one blade that had strange marks on it. I often wonder if the entire problem was the connection. Maybe after getting warmed up it would wiggle lose or loose contact? On my new pump I also packed in some elec grease.
I think you have something else going on other than temps of normal heat. They are made to work in temps that we have. Which surprised me because using a temp gun it gets pretty hot in there. (I don't remember the temps off hand).
Just a heads up about fuel treatment? I also did mine thinking that might be the problem and a good preventive measure for the RV's entire fuel system. And I really didn't know how the old owner took care of it. Turns out the fuel treatment (Seafoam) did a fantastic job of cleaning the entire fuel system. So good in fact that I fouled out 2 injectors at about 1,000 miles after treating the fuel system.
Following an "injector" shop recommendations and after getting injectors cleaned out, I changed out the fuel filter and then changed it again every 2,500 miles (twice) and then every oil change after that.
