Engine Description - Cam Shaft The 3-journal camshaft rides on the base metal of the crankcase. Camshaft drive is through helical gears; the timing gear is of light alloy. Valve timing is effected through cams, valve lifters, push rods, and rocker arms. Each cam alternately actuates one valve of two opposing cylinders. The exhaust valves are cased with high-grade chrome-nickel steel. |
