" This applies to any OHV engine regardless of horse power, number of cylinders, make or model ."
I have found at least one exception to the rule. Honda CRV engines at least the 1999 & 2000 years. These have solid lifters on an overhead cam and in time the valves will actually tighten up from valve wear recession into the head and then burn a valve. Honda won't even recognize the problem and tell you to have them adjusted more often.
I have not messed with many of the OHV small engines to know how they behave. I have adjusted the valves on some small diesels and they are as you described loose from wear. Seemed like the first time (500hrs) you find adjustment needed but then on they seemed ok.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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