Crankshaft Main Bearing

Main Bearing





Basic dimension of main crankshaft journals 65 mm diameter
Repair stage of main crankshaft journals 64.75 mm diameter


Main Bearing Torque (Guide Frame)





Installing guide frame
- Replace bolts - 1 to 20 -.
- Tighten bolts for guide frame as follows:
- Tighten bolts - 1 to 10 - using torque wrench to 30 Nm.
- Tighten bolts - 11 to 20 - using torque wrench to 20 Nm.
- Tighten bolts - 1 to 10 - using torque wrench to 50 Nm.
- Tighten bolts - 11 to 20 - using torque wrench to 30 Nm.
- Tighten bolts - 1 to 10 - 90° (1/4 additional turn) using a rigid wrench.
- Tighten bolts - 11 to 20 - 90° (1/4 additional turn) using a rigid wrench.
- Tighten bolts for sealing surfaces of cylinder block/guide frame - dark hatching in illustration - to 9 Nm in diagonal sequence.