Fig. 2.23. Camshaft sprocket: 1 – camshaft sprocket; 2 – actuator for changing valve timing
The design uses a camshaft sprocket made of a high-rigidity alloy, hardened to increase abrasion resistance at the point of contact with the timing chain. On L3 engines, the camshaft sprocket of the intake valves is combined with the actuator of the valve timing system (Figure 2.23).
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