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I don't agree with the "good for 200,000 mile" comment. Of the 4 hydo motors I have taken apart after the recall, 2 had bad head gaskets and all 4 had bad rocker arm and valve stem wear. I would blame it on poor oiling due to oil pressure lose around the tappets. The oil feed passages thru the crankcase that feed the hydraulic lifter continues to the head oil feed line connected/branching off at the top of the engine. Lowering the rocker oiling pressure and volume. Leading to the rocker arm and valve stem wearing. The valves do need to be inspected and re adjusted to compensate for the wear. Still a good engine though. Just my experience, other may very.