APPENDIX Tightening torque for major parts Tightening torque for injection pump system - 176 - APPENDIX Major Parts Screw (Diameter x pitch) Strength (grade) Tightening Torque Remarks Cylinder head bolt M14 B 1.5 10.9T 1st : 6 kg•m 2nd : 180° Finished : 150° (angle torque) Dodecagon 12T 24.5 kg•m hexagon 1st : 6 kg•m 2nd : 90° + 90° Finished : 30° (angle torque) Dodecagon Cylinder head cover bolt M8 8.8T 1.2 kg•m Connecting rod bearing cap bolt M16 1.5 B 12.9T 1st : 15 kg•m 2nd : 22 kg•m 3rd : 30 kg•m Crankshaft main bearing cap bolt M16 1.5 B 12.9T 1st : 15 kg•m 2nd : 25 kg•m 3rd :
30 kg•m Balance weight fixing bolt M14 1.5 B 10.9T 14.0 kg•m Split type Flywheel fixing bolt M14 1.5 B 10.9T 18.0 kg•m Crankshaft pulley fixing bolt M12 1.5 B 12.9T 13.4 kg•m Oil spray nozzle M6 8.8T 1.0 kg•m Major Parts Screw (Diameter x pitch) Strength (grade) Tightening Torque Remarks Injection nozzle holder nut M6 8.8T 1.0 kg•m Injection pump bracket M10 8.8T 4.4 kg•m Injection pump coupling bolt M10 - 6.0 kg•m Injection pump driving gear nut M24 1.5 B 8.8T 25.0 kg•m High pressure injection pipe fixing cap nut M14 B 1.5 8.8T 3.0 kg•m Injection pump delivery valve holder - - 13 ~ 14 kg•m