The table shows the tightening conditions for various bolts and nuts in the engine and other vehicle systems.
To ensure the reliability and durability of the connections, it is important to adhere to the specified tightening parameters.
Here are the main points:
- Crankshaft main bearing cap bolts:
Thread: Lubricate with engine oil, remove excess oil.
Tightening:
- Preliminary: 95-120 Nm (9.6-12 kgf-m).
- Final: 275-295 Nm (28-30 kgf-m).
Tightening order: From the middle support to the outer ones, starting with the right row. - Crankshaft bearing cap tie bolts:
- Thread: Lubricate with engine oil, remove excess oil.
- Tightening: 147-167 Nm (15-17 kgf-m). - Flywheel mounting bolts:
-Thread: Lubricate with a thin layer of graphite grease.
-Tightening:
- 7406.1005127: 245-264 Nm (25-27 kgf-m).
- 740.1005127-11: 167-186 Nm (17-19 kgf-m). - Power take-off half coupling and damper mounting bolts:
-Thread: Apply Stopor-6 or Unigerm 6 sealant.
-Tightening: 98-117.6 Nm (10-12 kgf-m). - Connecting rod cap mounting bolt:
-Tightening:
- Preliminary: 76.5-80.4 Nm (7.8-8.2 kgf-m).
- Final: Nut rotation angle 50°±5° and torque 108-180 Nm (11-18.3 kgf-m).
- Allowed: 127.5-137.3 Nm (13-14 kgf-m). - Front cylinder block cover mounting bolts:
-M10x1.25: 49-60.8 Nm (5-6.2 kgf-m).
-M12x1.25: 88.1-108 Nm (9-11 kgf-m). - Cylinder head mounting bolts (M16):
-Thread: Lubricate with a thin layer of graphite grease.
-Tightening:
- 1st step: 39-49 Nm (4-5 kgf-m).
- 2nd step: 98-127 Nm (10-13 kgf-m).
- 3rd step: 186-206 Nm (19-21 kgf-m). - Cylinder head cover bolts (M8):
-Tightening: 12.7-17.6 Nm (1.3-1.8 kgf-m). - Flywheel housing mounting bolts:
-M12:
- 1st step: 50-70 Nm (5-7 kgf-m).
- 2nd step: 88-108 Nm (9-11 kgf-m).
-M10:
- 1st step: 20-30 Nm (2-3 kgf-m).
- 2nd step: 43.1-54.9 Nm (4.4-5.6 kgf-m). - Camshaft drive pinion axle mounting bolts (M10):
-Tightening: 49-61 Nm (5-6.2 kgf-m). - . Exhaust manifold mounting bolts (M10):
-Tightening: 43-55 Nm (4.4-5.6 kgf-m). - Compressor housing mounting bolts (M6):
-Tightening: 4.9-7.8 Nm (0.5-0.8 kgf-m). - Turbine housing mounting bolts (M8):
-Tightening: 23.5-29.4 Nm (2.4-3 kgf-m). - Turbocharger oil supply line mounting bolts (M14):
-Tightening: 49-68 Nm (5-7 kgf-m). - Low pressure fuel line mounting bolts:
-M14: 39.2-49 Nm (4-5 kgf-m).
-M12: 34.3-49 Nm (3.5-5 kgf-m).
-M10: 19.6-24.5 Nm (2-2.5 kgf-m). - Oil pump mounting bolts (M10):
-Tightening: 49-60.8 Nm (5-6.2 kgf-m). - Rocker arm strut mounting nuts (M10):
-Tightening: 41-53 Nm (4.2-5.4 kgf-m). - Injector mounting bracket nuts (M10):
-Tightening: 31-39 Nm (3.2-4.0 kgf-m). - Turbocharger mounting nuts (M10):
-Tightening: 44-56 N m (4.4-5.6 kgf-m). - High-pressure fuel line nuts:
-Tightening: 24.5-44.1 N m (2.5-4.5 kgf-m). - Rocker arm adjusting screw nuts (M10):
-Tightening: 33-41 N m (3.4-4.2 kgf-m). - Oil filter cap plugs:
-Tightening: 10.78-24.5 N m (1.1-2.5 kgf-m). - Oil filter cap nuts:
-Tightening: 49-58.8 N m (5-6 kgf-m). - Oil pan drain plug:
- Tightening: 40-58.8 Nm (4-6 kgf-m).
General recommendations:
- Before tightening, make sure the threads are clean and lubricated (if required).
- Use a torque wrench to accurately adhere to tightening torques.
- Observe the tightening sequence, especially for critical connections (e.g. cylinder heads, crankshaft bearing caps).
