Attention! When laying the chain on the camshaft sprocket of the front cylinder head, mark 7 on the sprocket must be centered between marks 8 on the chain links. At the same time, mark 9 on the leading sprocket of the timing mechanism must coincide with mark 10 on the chain (see illustration 3.0).
3.0 Timing chain and sprocket timing marks. Front cylinder head
6 - key
Rear cylinder head
21. Turn the crankshaft clockwise one revolution, then turn it another 240°. Mark 12 on the drive sprocket of the timing mechanism should be opposite mark 15 on the chain, and mark 13 on the camshaft sprocket should be between marks 14 on the chain (see illustration).
3.21 Location of timing marks on sprockets and timing chain. Rear cylinder head
16 - key
22. Tighten bolt 17 securing the sprocket to the camshaft with a force of 80 Nm.