1. Camshaft Pulley: The camshaft pulley on a Peugeot 406 HDi 2.0 engine has two timing marks. One mark is located on the outer surface of the pulley and should align with a corresponding mark on the cylinder head cover. The second mark is located on the inner surface of the pulley and should align with a mark on the oil pump housing.
2. Crankshaft Pulley: The crankshaft pulley also has two timing marks. One mark is a single line located on the outer edge of the pulley, while the other is a double line located near the center of the pulley. The single line should align with a pointer on the engine block, while the double line should align with a mark on the oil pan.
3. Injection Pump Pulley: The injection pump pulley is located near the front of the engine and is driven by the camshaft pulley. It has a single timing mark that should align with a mark on the injection pump housing.
4. Engine Block: There are also several timing marks located on the engine block itself. One mark is a small dot located near the cylinder head gasket surface. This mark aligns with the first mark on the camshaft pulley. Another mark is a larger arrow located on the side of the engine block near the oil filter. This mark aligns with the second mark on the camshaft pulley.
Always refer to the service manual for your specific vehicle model for the exact location and alignment procedures of the timing marks. It's important to ensure precise alignment of the timing marks during belt replacement or engine reassembly to maintain proper engine operation.
