Timing Component Alignment Marks: Locations
CAUTION: The maximum amount by which the engine management system will adjust the camshaft timing (VCT control unit) is limited to two degrees. As a result of this an extremely high degree of accuracy is required for any work which affects the valve timing.CAUTION: The removal of the spark plug is necessary for the timing adjustment.
Crankshaft at TDC on cylinder No. 1.
NOTE: Cylinders No. 1 and No. 4 are at TDC when the Woodruff key points straight up.