Front of the engine
2. Install the sprocket on the crankshaft. Install the oil pump drive shaft and secure it with the thrust flange.
3. Rotate the flywheel so that the mark on the crankshaft sprocket aligns with the mark on the cylinder block (marks are indicated by arrows).
4. Install the sprocket on the camshaft, assembled with the bearing housing, and turn the shaft so that the mark 1 on the sprocket is against the mark 2 on the bearing housing.
5. Remove the sprocket and, without changing the position of the shaft, install the bearing housing on the cylinder head and secure by tightening the nuts in the sequence shown in the figure.
6. Install the chain guide on the cylinder head.
7. Install the camshaft drive chain. To do this, put the chain on the camshaft sprocket and insert it into the drive cavity, installing the sprocket so that the mark on it matches the mark on the bearing housing. Do not overtighten the sprocket bolt.
8. Install the sprocket on the oil pump drive shaft, also without completely tightening the mounting bolt.
9. Install the chain tensioner shoe and tensioner without tightening the cap nut so that the tensioner spring can press the shoe; screw the chain stop pin into the cylinder block.
10. Rotate the crankshaft two turns in the direction of rotation, which will provide the desired chain tension; check the alignment of the marks on the sprockets with the marks on the cylinder block and on the bearing housing.
11. If the marks match, then after locking the flywheel with lock A.60330/R, finally tighten the sprocket bolts, chain tensioner cap nut and bend the sprocket bolt lock washers; if the marks do not match, then repeat the chain installation operation.
12. Adjust the clearance between the camshaft cams and the valve actuating levers.
13. Install the camshaft drive cover with gasket and oil seal on the cylinder block without finally tightening the bolts and nuts. Using mandrel 41.7853.4010, center the position of the cover relative to the end of the crankshaft and finally tighten the nuts and bolts of its fastening.
14. Install the crankshaft pulley and secure it with the nut.