2.2 Tightening torques
Object Nm
Cylinder head bolts 80 Nm + 90° + 90°
Main bearing screws 200
Connecting rod screws
• M12 • 40 Nm > 80 Nm + 90°
• M14 • 40 Nm > 80 Nm + 90° + 90°
Crankshaft nut (33/44/49) 600
Crankshaft nut (66/74/84/98) 1000
Crankshaft pulley screws 30
Crankshaft pulley screws (74/84/98) 80
Flywheel screws 150
Flywheel screws (84/98) 200
Flywheel housing screws:
• M12 • 150
• M10 • 80
Idler gear screws :
• M14 • 180
•M8 •32
Small idler gear screws (shaft, 2 pcs): M8 45
Small idler gear screws (thrust ring): M8 32
Camshaft gear nut 200
Rocker arm shaft bracket screw and nuts 45
Valve cover and frame screws 25
Piston cooling valve 30
Oil pump retaining screws 60
Oil sump drain plug M18 80
Oil cooler connecting piece 60
Coolant pump pulley screw
• M10 • 50
• M12 • 80
Coolant pump pulley nut M16 120
Belt tightener screw 48
Exhaust manifold screws 50
Injector (CRIN3) retaining screw 40
2. Specifications
2-20 4th Generation Engines
8370 79492
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