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Old 02-14-2006, 09:14 AM   #1
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1979 28' Airstream Excella 28
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A generator on an Argosy

I have a 1978 argosy and the generator has not worked or a while..... It works sometimes and I've heard that the gas level in the tank matters and should I look to the gas filters ????..Thanks for any help Rod

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Old 02-14-2006, 09:59 AM   #2
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1989 37' Airstream 370
Hastings , Minnesota
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Generator Argosy

Your problem could be many. Yes the amount of fuel in the tank is very important. The gen set has its own fuel line going to the fuel tank. The fuel pick up in the tank is higher off the tank bottem than the engine fuel pick up is.
This is so that if you are out in the boondocks with your
generator running you will always have enough fuel to get to town and fuel up.

The gen set has its own electric fuel pump but not a fuel filter unless one has been added aftermarket.

Your trouble also could be a clogged carburator if the generator has not been used in a long time.

I hope this will help you,
Pat370 Hastings, Mn.

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Old 02-14-2006, 10:09 AM   #3
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Could be the gas line

Originally Posted by roderickm3
I have a 1978 argosy and the generator has not worked or a while..... It works sometimes and I've heard that the gas level in the tank matters and should I look to the gas filters ????...
On the Onan installed on the '87 the filter is SUPPOSED to be inside the external electric fuel pump (the electric fuel pump for the genny is mounted on the generator). The internal filter itself is no longer available as a replacement part, so if you have one installed in the fuel pump you may consider installing an aftermarket inline filter.

One of the problems on the 345 genny was the cracking of the generator gas (suction) line. On the 345 the line is about 15' long - air is able to get into the line through the cracks when the genny electric fuel pump comes on line. Evidently this had been going on for a while 'cause the seats and needles of both the primary and secondary jets were extremly worn away - I suspect there was quite a bit of air/liquid impaction going on to wear away the brass jets to the extent the metal had disappeared.

Since your lines are 10 years or so older than the '87 345, I would recommend a through inspection of the suction line from the gas tank to the generator.

How many hours on your generator? With almost 800 hours on the Onan in the 345 I have given up trying to "fix" it and have decided to install a new's only time and money.

"Suck it up, spend the bucks, do it right the first time."

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Old 02-14-2006, 10:11 AM   #4
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Yes, and you may want to look at the solenoid valve (if it has one).
This might come in handy?

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