... , 2.Thread Type, 3.Key Type. Air-Cooled Diesel Engine Motor Machinery Engine(GE178F)1.Air cooled diesel engine 170F2.Output ... crankshaft can be Tapered type, Thread type, Key type4.Recoil start or Electric start5.Singel-cylinder, Vertical, 4-stroke. Air-cooled ... -choice PTO shafts, high pulling torque Air-Cooled Diesel Engine Motor Machinery Engine(GE178F)