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Carb/fuel Issues 1973 Ss/16

fuel spewing from carb ss/16

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7 replies to this topic

#1 Jasper OFFLINE  

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Posted December 05, 2012 - 06:17 PM

I got my old SS/18 running that I repowered with another Onan 16 hp I had in the shop but now gas is spewing up out of the carburetor. I'm starting to lean towards bad valves but not sure it is smoking considerable also. Any suggestions?IMG_5712.JPG IMG_5711.JPG

Edited by Jasper, December 05, 2012 - 06:17 PM.


#2 MH81 ONLINE  

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Posted December 05, 2012 - 06:26 PM

Yes. First stop running it on that oil :D

Pull the dipstick & I think the oil will be a little high and smell like gas..

What model is the engine? There are a couple manuals on the Onans in the engine section here.
Exploded views of the carb, etc.

#3 MH81 ONLINE  

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Posted December 05, 2012 - 06:28 PM

Oh, and what kind of fuel pump is on it?

#4 Jasper OFFLINE  

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Posted December 05, 2012 - 09:39 PM

The engine is a MS/2833D and I couldn’t get to the fuel pump to as it is under the battery behind the dash. It does not have a pressure regulator. I check the compression and had 125 lbs on the front cylinder and 0 lbs on the rear. Looks like I might have a stuck valve.

#5 trackcar OFFLINE  

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Posted December 05, 2012 - 10:09 PM

If you do have gas in your oil, I had this happen in the 90's with 6-cyl. Jeep pickup I had. I was shoving snow with my bumper (going to work) and my air intake got clogged and gas got mixed with my engine oil. The next morning in the slop, I changed my oil before going home. Maybe a raccoon hide got stuck in your air filter?

#6 MH81 ONLINE  

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Posted December 05, 2012 - 10:20 PM

Hope it's a simple fix to get the valve moving again.
On the bright side, you get a chance to de-carbon the cylinder.

#7 Farmlife OFFLINE  

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Posted December 06, 2012 - 04:23 AM

Gas spewing all over is NEVER a good thing and that's all I have to add to this thread....lol

#8 Jasper OFFLINE  

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Posted December 06, 2012 - 11:35 PM

Got the engine swapped out with another spare but it's a smoker.




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