1 - bolt; 2 - gasket washer; 3 - damper; 4 - asterisk; 5, 10 - bearing shell; 6, 9 - thrust bearing shell; 7 - gear wheel; 8 - locking bolt; 11 - key; 12 - shaft mark
Remove the engine and cylinder head, oil pump, oil level indicator and damper, lower timing cover.
Remove the flywheel and all pistons, remove the crankshaft rear oil seal cover. Check crankshaft end play (pic. 3.87).
If the permissible axial clearance is exceeded (0.080-0.163 mm), replace the crankshaft thrust bearing shells.
Loosen the fastening screws of the spacers (28, see fig. 3.3) sheet metal to increase rigidity and remove them.
1 - cylinder block; 2 - screw plug (M14x1.5); 3 - sealing ring; 4 - centering sleeve (∅13,5); S - shield; 6, 30 - centering sleeve (∅10.5); 7, 8 - nozzle; 9 - bolt (M6x16); 10 - plug; 11 - cover; 12 - centering sleeve (∅14,5); 13 - sealant; 14 - stuffing box cover; 15.16 - bolt (М8x32); 17 - stuffing box; 18 - centering sleeve (∅10,5); 19 - bolt (М8x22); 20 - oil level damper; 21 - bolt (M6x12); 22 - O-ring (17x3); 23 - crankshaft sensor; 24 - bolt (M6x16); 25 - hairpin (M8x35); 26 - hairpin (М10x40); 27 - bolt (М8x22); 28 - intermediate insert; 29 - screw plug (M24x1.5); 30 - centering sleeve (∅13,5); 31 - knock sensor; 32 - bolt (M8x30); 33 - bolt (М10x92); 34 - screw plug (M14x1.5); 35, 36 - cover pin
Sequentially loosen all the bolts and unscrew the bolts securing the main bearing caps (14 pieces, fig. 3.88).
Check marking (digitization) and remove the main bearing caps 1-7. If necessary, remove the gear wheel of the engine management system (engine shaft speed sensor). Take out the crankshaft and pay attention to its marking (12, see fig.3.10).
Replace the crankshaft main and connecting rod bearings. Replace the gearbox input shaft front bearing. if provided by the design. When installing the gear (7, see fig. 3.10) KSUD replace bolts (8, M5 (10.9)) fasteners and tighten them in two steps:
- first, torque 5.0 Nm (0.5 kgf·m);
- the second, tighten by an angle of 45°.