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Old 08-15-2011, 01:53 PM   #1
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Adjusting valves in Generator

I have a ONON 5500 generator in my motor home. I just took it to a shop to get a gas leak thatsnext to gas filter repaired, I was told that I need to get the values adjusted. I just wanted to know is this something people do from time to time. The generator has 890 hours on it. Thanks

2008 Winnebago Voyage 32H
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Old 08-15-2011, 07:01 PM   #2
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Yes, you should have the valves adjusted as prescribed at the interval by Onan. On my Onan with the Isuzu motor it isat 1000 hrs and with the Onan Kubota engine it is 850 hrs. Mine were all .004" out of adjustment. If the valve lash is too loose it will cause a loss of power and beat out the valve stem tip and roker arm. If they are too tight they may cause a burned valve.

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"Gunner" USN Retired, Airdale
2004 Monaco Signature 44' Conquest. Detroit 60
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Old 08-15-2011, 10:21 PM   #3
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Thank you.
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