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07-24-2019, 07:07 PM | #1 |
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Onan 4000 Microquiet
The kids generator locked up on him, thinking he had damaged the engine as his motorhome was leaning to one side. Anyway I pulled it out and removed the engine side cover to see how bad it was, engines fine wound up finding the starter drive jammed into the flywheel. So now I need a new side cover gasket and would like to know... do I replace the starter as an assembly or locate a new drive for it? Damn things made of plastic, so not sure how to proceed. Final question, what's the best source for these parts? Thanks in advance for any replies. Joe
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Joe Buchanan SS/BX 3117 |
07-24-2019, 08:02 PM | #2 |
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Re: Onan 4000 Microquiet
Starters are cheap and yes they do that. You’ll have to get a gasket and a starter. Lots of places selling Onan parts online. Amazon sells everything. Google Onan parts and you should be able to get what you need.
Here’s a good source for Onan parts. Don’t know if you can get that gasket though. I buy direct from Cummins-Onan and some other sources like this place occasionally https://www.partsfortechs.com/asapcart/
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Rich Biebel S/C 1479 Last edited by Rich Biebel; 07-24-2019 at 08:06 PM. |
08-13-2019, 08:30 AM | #3 |
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Re: Onan 4000 Microquiet
Got my sons generator back together and running. It ran for two weekends at the track. He told me it shut itself off last Sunday, it cranks and starts, but he says it seems to rev fairly high then shut off. Only blinks code 3 (service required) does that cause this shut down, and if so how do you reset it?
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Joe Buchanan SS/BX 3117 |
08-13-2019, 10:19 AM | #4 |
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Re: Onan 4000 Microquiet
When its blinking 3 times, push it to stop one time and it will show you a fault code for why it shut down.
Over speed is a 1-4 code... If there is something interfering with the governor rod to the carb it may be your issue. 66Hz for a few seconds and it will shut down in over speed.... Need a meter that can read frequency to see what the engine speed/frequency is.....Should be 62 with no load applied.... You can recall the last shutdown fault code by pushing stop 3 times and then it will again blink 3 times.....push stop ONCE after it is blinking 3 times .....read that code...Usually a series of 2 numbers separated by a pause... 1 pause 4 is over speed...…
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Rich Biebel S/C 1479 Last edited by Rich Biebel; 08-13-2019 at 08:06 PM. |
08-13-2019, 05:33 PM | #5 | |
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Re: Onan 4000 Microquiet
Quote:
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Jeff Niceswanger 3740 SS Last edited by Jeff Niceswanger; 08-13-2019 at 05:36 PM. |
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08-14-2019, 02:27 PM | #6 |
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Re: Onan 4000 Microquiet
Well it does have a code14 in it. My kid says he can see the governor arm and linkage moving, so I told him to try to slow it down by holding the governor arm, says it still quits. He's been on the web t
looking for possible fixes, not sure yet if he's found any. Thanks Jeff I'll touch base with you if he can't get it figured out. It is your old generators engine in it, been going for years.
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Joe Buchanan SS/BX 3117 |
08-16-2019, 11:19 AM | #7 |
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Re: Onan 4000 Microquiet
The kid finally made it over with his motorhome, found the problem with his generator, the throttle shaft broke right where the top blade screw goes through. He has another carb so should have it fixed tonight. Thanks everyone for you help.
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Joe Buchanan SS/BX 3117 |
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