Is the Timing Mark on the Peugeot 408 Crankshaft Pulley Useful?
1 Answers
The timing mark on the Peugeot 408 crankshaft pulley is extremely useful. This is because the alignment of the timing gear and camshaft timing gear is a critical step during repair and assembly, directly affecting the vehicle's power performance. Therefore, it must be taken seriously. Here are the relevant details: 1. Assembly Process: During assembly, if both timing gears have timing marks, since the positional relationship between the gears and the crankshaft is determined by the keyway, simply align the timing marks of the two gears and install them. 2. Assembly Without Marks: (1) If the timing marks on the two timing gears are unclear or missing, but the valve timing angles of the intake and exhaust valves are known, the following method can be used for assembly. (2) Align the timing marks. In this case, observe the movement of the intake and exhaust valve rocker arms of the first cylinder by turning the flywheel clockwise and counterclockwise to determine whether the first cylinder piston is at top dead center of the compression stroke or the exhaust stroke. When there is no movement in the intake and exhaust valve rocker arms, it indicates the piston is at top dead center of the compression stroke. (3) The crankshaft timing point is marked by a circular indicator on the crankshaft pulley, which aligns with a special link in the timing chain. This is the crankshaft timing point. Rotate the exhaust camshaft to align its mark with the chain's mark, then tighten the camshaft bolt on one side to tension the chain. Rotate the crankshaft timing sprocket to align the crankshaft mark with the chain's mark, completing the timing alignment.
