How to Align the Timing Crankshaft of Peugeot 408?
2 Answers
The timing point of the crankshaft is located at the base of the oil filter, and the timing point of the camshaft is on the camshaft timing wheel. Secure each point with a pin. The specific steps for timing alignment are as follows: 1. Align the mark on the intake camshaft with the mark on the chain. Rotate the exhaust camshaft to align its mark with the chain mark. Generally, there are three timing marks. The chain has sprocket teeth of different colors, and the camshaft gear also has three marks—two groove marks aligned with the cylinder head plane, the dot on the gear aligned with the black chain link on the chain, and the TDC mark on the crankshaft gear aligned with the mark on the oil pump. 2. Tighten the chain by rotating the camshaft screw on one side. Rotate the crankshaft timing sprocket to align the crankshaft mark with the chain mark, completing the timing alignment.
The timing alignment of the Peugeot 408's crankshaft is actually quite critical. I've tinkered with it several times myself. Remember to rotate cylinder one to top dead center and align the mark on the crankshaft pulley with the small triangular mark on the engine block. The two camshaft gears also need to be aligned simultaneously—one should align with the notch on the cylinder head, and the other should align with the mark on the camshaft bearing cap. Before installing the belt, use a special tool to lock the camshaft gears to prevent them from rotating. After installation, adjust the tension using the tensioner. Finally, remember to manually rotate the crankshaft two full turns and recheck the alignment marks for any deviation. Being off by even a single tooth could lead to valve interference, which would ruin the engine. It's best to follow the repair manual for these tasks, as the mark positions may vary slightly across different model years.
