Onan Gen Set 5000 very rough start
I have an Onan Gen Set 5000 generator in my 1994 Winnebago Class A motorhome. We were traveling last night from Michigan to North Carolina. I started the generator when we left home and it ran great ...
Forum Discussion
Has the fuel pump ever been replaced that you know of ?.
Short run time problems.
#1 Fuel pump, old worn out or inside pump part coming apart & then plugging the fuel filter.
#2 Rotted & cracked fuel hose, air being sucked in through the cracks & then no gas getting to the carb.
#3 Stopped up fuel filter, little if any fuel getting to the carb float bowl.
#4 Gummed up & clogged up carb, gas sitting in the bowl will go stale & will turn to gum, just like chewing gum. Those jets inside the carb, the metering holes in them can be as small as a hair, so it dont take very much to stop them up.
#5 Dirty & stopped up air filter, could be dirt, gas spray, crankcase oil stopping it up. If the engine cant breath freely, it cant run properly.
Probably around 75% of the Onan generator problems we all have, (including my own) are fuel related problems.
It does no small engine any good, to sit for a good amount of time & not be used, because gas will go stale, gum up the carb bowl, jets & the float needle & nothing but Acetone or Tololene will dissolve that gum & wash it away.
Fresh gas, kerosene, diesel fuel & even some spray carb cleaners will not touch or dissolve it.
Neil
Short run time problems.
#1 Fuel pump, old worn out or inside pump part coming apart & then plugging the fuel filter.
#2 Rotted & cracked fuel hose, air being sucked in through the cracks & then no gas getting to the carb.
#3 Stopped up fuel filter, little if any fuel getting to the carb float bowl.
#4 Gummed up & clogged up carb, gas sitting in the bowl will go stale & will turn to gum, just like chewing gum. Those jets inside the carb, the metering holes in them can be as small as a hair, so it dont take very much to stop them up.
#5 Dirty & stopped up air filter, could be dirt, gas spray, crankcase oil stopping it up. If the engine cant breath freely, it cant run properly.
Probably around 75% of the Onan generator problems we all have, (including my own) are fuel related problems.
It does no small engine any good, to sit for a good amount of time & not be used, because gas will go stale, gum up the carb bowl, jets & the float needle & nothing but Acetone or Tololene will dissolve that gum & wash it away.
Fresh gas, kerosene, diesel fuel & even some spray carb cleaners will not touch or dissolve it.
Neil
