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Onan Fuel Problem


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#16 KC9KAS OFFLINE  

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Posted August 06, 2016 - 02:26 PM

My brother had the same problem with his Onan, there was crud plugging the outlet from the tank !

I was going to suggest the hose barb on the tank may have a problem...some have a screen on them inside the tank and could be partially clogged make the fuel pump vacuum find that little air leak somewhere.

Good luck and let us know what you found!


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#17 secondtry OFFLINE  

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Posted August 06, 2016 - 04:34 PM

My brother had the same problem with his Onan, there was crud plugging the outlet from the tank !

    To check fuel flow from the tank I just remove the Fuel line from the pump inlet and let the fuel gravity feed into a clean gas can. with the plastic gas cans enough light gets in to see if fuel is dirty. If all the fuel drains from the tank and it is clean I feel that eliminates dirty tank as a problem.  The previous owner of my 18/6 worked on the carb and reinstalled a gasket upside down. Then apparently decided the fuel pump was defective. removed the fuel pump from the side of the carb and ripped the little brass read valves out reassembled. then installed an electric pump. The gasket being upside down blocked fuel flow to the float valve. The tractor was left to rot for several years before I bought it real cheep. Don     


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#18 bbuckler OFFLINE  

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Posted August 06, 2016 - 07:32 PM

Got the old line off but it will be the morning before I get a new piece. 


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#19 bbuckler OFFLINE  

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Posted August 08, 2016 - 02:04 PM

New fuel hose on still have to put the seat back on



#20 bbuckler OFFLINE  

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Posted August 08, 2016 - 08:38 PM

Check to make sure the clamps are tight and the line doesn't have a nick in it also.

The new line fixed the problem I mowed a good piece of the pasture no stalling. 


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#21 ducky OFFLINE  

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Posted August 08, 2016 - 11:47 PM

Glad you got that job DONE!






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