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Old 04-19-2014, 12:52 PM   #1
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Onan Generator

i have an 89 coachmen catalina with a GM chassis. it has an Onan Gen. that will not start. it turns over for one sec then it clicks. Is it the battery and does anyone know where i could download a manual for the Onan Gen. its really a confusing thing as i was told by the ole girl i bought it from that THE GEN WAS JUST RUNNING and it has a new battery. i highly doubt it but what can i say she is old and wanted the MH gone. anyone with any ideas on how to get it running. I am a pretty good handywoman and can do mechanical things too if someome could just draw me some pictures lol
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Old 04-19-2014, 05:16 PM   #2
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Start by removing the postive and negative wires from the generator, cleaning them very good with a wire brush and making sure where each connects is good and clean as well. It certainly sounds like a voltage issue so far....
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Old 04-19-2014, 05:27 PM   #3
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Definitely sounds like a connection issue to me. Make sure of the ground wire that it makes a good ground to the chassis as a little corrosion will cause that condition for sure.
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Old 04-20-2014, 06:20 AM   #4
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smokstak.com someone there will have your manual and will forward to you. Good Luck.
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Old 05-08-2014, 08:33 PM   #5
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Something like this?
http://www.cumminsonan.com/www/pdf/manuals/965-0528.pdf
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Old 05-08-2014, 09:50 PM   #6
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Try jumper cables.
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Old 05-09-2014, 06:27 PM   #7
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Talking Onan gen

I am getting no spark from the spark plug. I watched a few videos to help with a solution so I will try some of those things first. I tried a new plug also. It cranks good with the plug out it so it's not seized, which is a good thing. . If I still can't get it to work in sure it would make a good boat anchor lol. Thanks for the help
Kathy
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Old 05-09-2014, 07:04 PM   #8
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Unhappy Sometimes a fix is just not in the cards.

I just went through a lot of money on a not-working-for-me-but-supposedly-did-for-the-previous-owner Onan. The first company I went to ripped me off big time. They said I needed some new parts (can't remember what they were now), put in some new stuff and charged me $1,100. Nothing changed, but for another $1,100 they'd take another shot at it. Uh-huh.

Eventually I went to Cummins (the Onan rep in Canada) where I was told that my Onan was basically worn completely out. Too many hours on it. Too dirty. Too tired. Just "too".

So fix 'er uppers beware: it seems that your Onan can simply be too old, with too many hours, and you can't fix it with a new part here and a new part there.
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Old 05-10-2014, 11:16 AM   #9
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It might be an ignition coil. Check this site Ignition / Tune-Up parts : A.S.A.P. Lots of parts, but you need to know the specific Onan model.

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I am getting no spark from the spark plug. I watched a few videos to help with a solution so I will try some of those things first. I tried a new plug also. It cranks good with the plug out it so it's not seized, which is a good thing. . If I still can't get it to work in sure it would make a good boat anchor lol. Thanks for the help
Kathy
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Old 05-10-2014, 11:21 AM   #10
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Also, download a troubleshooting guide from here: Troubleshooting and Cross-Reference Guides | Flight Systems, Inc

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It might be an ignition coil. Check this site Ignition / Tune-Up parts : A.S.A.P. Lots of parts, but you need to know the specific Onan model.
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Old 05-10-2014, 12:53 PM   #11
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Onans have a points box with a bump rod that operates the points. Oil can get up in there and contaminate the points. It needs cleaning out and new points installed. You can replace the seal on the rod and the other gaskets to keep dirt and oil out of there.
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