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Old 10-30-2015, 12:10 PM   #1
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Valve Lash Adjustment, Onan 10K

I would be interested in knowing how many of you have done the valve lash adjustment on your Onan generator. My manual says do it every 800 hours. I now have just over 1,100 hours and PO of my coach only put about 600 hours on it.

Mine will be in a full service RV shop soon and I am thinking I may let them do the valves, replace the belt and maybe the temp sensor. The temp sensor (at least on the 7.5 KW Onan's) was a known problem with causing false over temp shut downs.

I do know that even when my generator slide is fully extended, you cannot reach the rear most bolts on the generator lid. It is a shame that CC did not configure that slide to move out just another 2".
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Old 10-30-2015, 12:14 PM   #2
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Have not done the valve lash adjustment, but have taken off cover using a ratcheting box end on the back bolts.

Brian
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Old 10-30-2015, 02:40 PM   #3
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Generator cover

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Originally Posted by BrianGlenn View Post
Have not done the valve lash adjustment, but have taken off cover using a ratcheting box end on the back bolts.

Brian
Ditto

a swivel ratchet ring spanner sorts the back bolts without having to get under the coach

Ian S.

2005 Allure 430
Onan 8000 generator
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