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Old 07-23-2014, 06:12 AM   #1
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Join Date: May 2012
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Onan Marquis 7000 generator

My generator will not start. I removed the covers and found a mouse nest inside. Among the debris, I found parts of the plastic ignition rotor. I guess it hit something in the mouse nest and broke. I found the part on line but I can't find any information on just where it goes and how to install it. HELP! Pete Kennedy, petedianne@comcast.net

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Old 07-24-2014, 04:31 AM   #2
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This is fairly common. The mice are able to nest easily back in there. The ignition rotor is an extremely frail piece of plastic and any rotation from the engine breaks it when trying to push through the nest. Here is a post on here from me last year with this very exact same issue: Major mouse damage to genset...

Unfortunately, you are going to have to remove the generator from the coach. The ignition rotor is located on the output side of the crankshaft where the bell of the generator (stator) portion bolts to the engine portion. Thus it will need separated. I would also check the windings in the stator as the mice love to chew the insulation along the edges.

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Old 07-26-2014, 03:44 PM   #3
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Onan Marquis 7000 generator

Thank you for you help. That's exactly the problem. We now have the generator out and partly dis-assembled. Can you give me any help on how to separate the engine from the generator? Thanks, Pete
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