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I posted several days ago about a 19 HP B&S on a John Deere rider. Model 31P677 Bertsmoble1 rightly told me to replace the head gasket. I followed the Youtube videos and felt I'd done a credible job. Torqued head bolts to 218 in-lb, intake to 0.004, exhaust to 0.005 in. However, although the...

I purchased a John Deere L115 rider in 2009 with a Model 31P677 single cylinder engine. I've regularly changed filters and oil, but haven't adjusted the valves or done anything with the PCV?? valve. Several weeks ago, the engine started "burning" oil when the load changed. It is using a half...