KendallP wrote:
dougrainer wrote:
1. FUEL in Bowl will NOT deplete in 10 to 15 seconds, so that is NOT your problem for running 5 seconds and stopping.
2. IF you still think it is, just spray B-12 into the intake when it starts to die. IF it IS fuel starvation then it will stay running. If it does NOT then fuel is not the problem
3. Did you replace the Condensor? A bad condenser will cause your type problem
4. Are you positive all 16 pinholes in the Needle fuel jet are completely open? Soaking will not get all completely open. You must used compressed air to clean them out after using carb cleaner
5. Have you bypassed the Oil pressure switch? A Defective pressure switch will also cause your type problem. Just ground it and see if it stays running. Doug
2. I'll Try that
3. Condensor is pretty recent, yes. 100 hours max. Probably 50.
4. Definitely not. I did a "quick" cleaning by popping the top, float, spring and needle. Then Gumout carb and choke into the visible orifices via the red straw in addition to spraying the heck out of the bowl and such. But nothing else disconnected, so spray had nowhere to go but in and back out. Then I let it sit and later wiped it out with some blue paper towel and then hit it with air from my compressor. I'm just surprised that it will run so smoothly and even run the A/C, but then pulse every 10 seconds or so and then continue on.
5. So it will pulse, but continue running? I'll try that.
Years ago when I did FULL service on Old style Onan's, I had a few Condensors right out of the box that were bad. So, I always kept an old condenser to quickly connect it to test if a new condenser was defective. To clean the needle jets requires you to unscrew it from the carb tower and clean and inspect. 1 orifice out of the sixteen that is plugged will cause hunt and surge. Doug
