Timing Component Alignment Marks: Locations
Timing Component Alignment MarksCAUTION:Failure to verify correct timing drive component alignment will result in severe engine damage. For complete service procedure, please refer to Timing Drive Components Removal/Installation. Service and Repair
The crankshaft pulley and the crankshaft timing sprocket are not keyed to the crankshaft. The crankshaft, the crankshaft sprocket and the pulley are fitted together by friction, using diamond washers between the flange faces on each part. For that reason, the crankshaft sprocket is also unfastened if the pulley bolt is loosened. Before any repair requiring loosening or removal of the crankshaft pulley bolt, the crankshaft and camshafts must be locked in place by the service tools, otherwise severe engine damage can occur.