| Re: [GMCnet] Onan Issue [message #259987 is a reply to message #259970] |
Sun, 24 August 2014 22:45   |
Gary Bovee
Messages: 177
Registered: August 2008
Karma:
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Senior Member |
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I had a simlar problem a couple of years ago. The difference with mine was the time period before it would shut off gradually became shorter and shorter until it finally quit. I replaced the points and condenser and it ran fine after that. I think it was the condenser going bad because the points looked OK.
Gary Bovee
Red Bluff, CA
1978 Royale
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> On Aug 24, 2014, at 8:09 PM, A. wrote:
>
> Arthur Mansfield wrote on Sun, 24 August 2014 19:50
>> I have worked on my Onan several times. I changed the points, fuel pump and filter, cleaned the carb. The Onan runs for hours with no issues
>> when not driving. Once I drive for a couple of hours the Onan will not run right if at all. It surges and stops when driving. I just got back from
>> a long trip. I checked the Onan the next day after the trip an it ran fine yet it would not run hardly at all when I tried to use it when stopped
>> to eat or when it got hot in the RV. I have tried a different coil and it did the same thing on another trip. We generally have 2 cats and my wife
>> gets up set if it gets over 85 in the RV. My dash AC is worthless so I would like to be able to run the house AC on hot days.
>>
>> Since it will run ok for about 1.5 to 2 hour for the start of a trip, I wonder if gas in the tank has warmed up and is creating the problem. I
>> tired to adjust the carb when the generator is acting up. I could not get it smooth out. If I had thought about it at the time, I would have
>> change the coil to see if that helps.
>>
>> I had another smaller Onan generator. Are the control boards the same on a 4KW as a 7KW generator. If so I will change the control board and see
>> what that does. I guess the other thing could be carbon in the heads and the running temperature has gone up on the road and is causing the
>> problem. I just do not know were to start. I know it runs better since I replaced the fuel pump a filter points and coil when running off the
>> road.
>>
>> Thanks
>>
>> Art & Doris
>> 76 EL
> http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=179089&rid=2083#msg_179089
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