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Salthart

whats the low-down on the CH 18s ?

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bigdog46
I installed a CH18 as a kit from Small Engine Warehouse in my Simplicity 7117 about a year and a half ago. It runs great but seems to be a little harder starting than my KT17 engines. I would recommend the engine.

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a-cman
I think you maybe confusing the CH-18 with the more trouble prone TH-18. I have a CH-22 in my AGCO-ALLIS 918H (or maybe now 922H) and it is a very strong engine. I am thinking about another CH Kohler for my Simplicity 7117.

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TimJr
The Commands (CH) are good. You MUST run 10w30 oil in those - hydraulic valve lifters. The Kohler oil is supposed to be a very good oil. Their propaganda is that it is formulated for the high temps of an air cooled, plus less foam to prevent cavitation resulting in lifter clatter. Ultimately, any quality oil should do though. The TH engines are kinda neat engines, but don't have a great service record. Tim

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