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Found an Onan AK today


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  #1  
Old 04-19-2017, 07:03:08 PM
MadMachinist MadMachinist is offline
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Default Found an Onan AK today

I came across this little gem in a barn today. It's in perfect condition. Paint looks like new. Gas tank smelled like varnish so we drizzled a little fresh gas in the carb and with a couple pulls it fired and run just enough to make the bulb on the end glow a bit.

It's one heavy little gen set.
Can anyone tell me the build date?
What's it worth?
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  #2  
Old 04-19-2017, 07:09:50 PM
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Billy J Shafer Billy J Shafer is offline
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Default Re: Found an Onan AK today

Made in Sept 1963. probably worth 100-200 dollars.
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Old 04-19-2017, 07:43:10 PM
yellowlister yellowlister is online now
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Default Re: Found an Onan AK today

We need more pictures...
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Old 04-19-2017, 07:53:45 PM
MadMachinist MadMachinist is offline
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Default Re: Found an Onan AK today

I offered $200 for it so I might be able to get as many as you want if he takes it.

Seriously, it looks almost new. I knew it was old and was shocked at its condition.

A friend of mine bought a warehouse full of fire department stuff. It was on a skid with some other old Winco sets. The muffler still has most of the paint on it.
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Old 04-20-2017, 09:07:09 AM
Ray Lynch Ray Lynch is offline
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Default Re: Found an Onan AK today

Definitely more pics if you get it.
3600 RPM set.
Ray
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Old 04-26-2017, 10:26:04 PM
MadMachinist MadMachinist is offline
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Default Re: Found an Onan AK today

Quote:
Originally Posted by Billy J Shafer View Post
Made in Sept 1963. probably worth 100-200 dollars.
He delivered it to me this afternoon. Would only take $100 for it because it won't stay running. If we put a dash of gasoline down the intake it will fire and make power but as soon as that's gone, it dies.

Is that a fuel pump below the carburetor? It appears to have a primer lever on the side. The lever has what I think is the remains of a spring. It stays in whichever position I move it to.

I'm certain the problem is fuel. Either the float is stuck closed or the pump (if that's a pump) isn't working.

The petcock on sediment bowl is open.

What's the best place to start Billy?
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Old 04-26-2017, 10:31:13 PM
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Default Re: Found an Onan AK today

Wow that is a clean onan! I would remove fuel lines at the pump and squirt some wd 40 in and see if the diaphram losesns up.. there are diaprhram rebuild kits online for 20 bucks.. after sitting so long it could be dried out

May be time for a oil change after 7 years
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Old 04-26-2017, 10:38:27 PM
MadMachinist MadMachinist is offline
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Default Re: Found an Onan AK today

Thanks

I fell in love with it when I seen it.
Sorta like a little puppy sitting alone in a corner.

I'm going to get it running and maybe use it here or there. I have a 15.0 JC on wheels if I need serious power.
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Old 04-26-2017, 10:46:05 PM
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Default Re: Found an Onan AK today

I would start with the pump. I have a cck in the shop for service. 1978 model hasn't run it ten years. Put some oil in the pump let it set for an hour. Spun it over started just fine. If the pump is working. You may need to clean out the carb.
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Old 04-27-2017, 12:14:57 PM
gnucklehead gnucklehead is offline
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Default Re: Found an Onan AK today

Very nice - Sweeeet I don't even think twice about it - pumps like this get rebuilt/replaced (mechanical/electrical/vacuum style), gravity-fed, or converted to propane. If age didn't get it, the ethanol will. Even if it's just stuck or dirty now and you get it working, it probably won't last. Diaphragm gets stretched and might even work, but fuel still permeates through it. Smell the oil.. The nose knows

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