Service Manual

__________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________
Tightening Torque
The Mitsubishi diesel engine has many bolts and cap- the engine. The torque specifications in American
screws of special materials and sizes. It is very impor- Standard and Metric as listed below MUST be followed
tant that special care be used to replace all bolts and in order to have the assembled engine conform to the
capscrews in their proper location during assembly of original specifications.
Item Size (Width across flat of hex head) Specification
Cylinder Head Bolt,Main (Wet) M10 (14) 7.5 - 8.5 KgM (54 - 62 ft-lb)
Cylinder Head Bolt, Sub. (Wet) M8 (12) 2.0 - 3.0 Kgm (15 - 22 ft-lb)
Connecting Rod Cap Nut M8 (14) 3.2 - 3.5 KgM (23 - 25 ft-lb)
Flywheel Bolt M10 (17) 8.5 - 9.5 KgM (62 - 69 ft-lb)
Crankshaft Pulley Nut M16 (24) 10.0 - 12.0 KgM (72 - 87 ft-lb)
Main Bearing Cap Bolt M10 (17) 5.0 - 5.5 KgM (36 - 40 ft-lb)
Rocker Stay Bolt M8 (12) 1.5 - 2.2 KgM (11 - 16 ft-lb)
Rocker Cover Nut M6 (10) 0.5 - 0.7 KgM (4 - 5 ft-lb)
Nozzle Holder (fitting to engine) M20 (21) 5.0 - 6.0 KgM (36 - 43 ft-lb)
Nozzle Union Collar Fixing Nut M12 (17) 2.5 - 3.0 KgM (18 - 22 ft-lb)
Nozzle Retaining Nut M16 (21) 3.5 - 4.0 KgM (25 - 29 ft-lb)
Fuel Injection Pipe Nut M12 (17) 2.5 - 3.5 KgM (18 - 25 ft-lb)
Delivery Valve Holder M16 (17) 3.5 - 3.9 KgM (25 - 28 ft-lb)
Injection Pump Hollow Screw M10 (14) 1.0 - 1.5 KgM (7 - 11 ft-lb)
Injection Pump Air Vent Screw M6 (10) 0.5 - 0.7 KgM (4 - 5 ft-lb)
Solenoid Locknut M30 (36) 4.0 - 5.0 KgM (29 - 36 ft-lb)
Water Temperature Gauge Joint M16 (23) 2.0 - 3.0 KgM (15 - 22 ft-lb)
Thermoswitch M16 (19) 1.9 - 2.7 KgM (14 - 20 ft-lb)
Thermo Gauge Unit M16 (17) 1.9 - 2.7 KgM (14 - 20 ft-lb)
Oil Filter M20 1.1 - 1.3 KgM (8 - 9 ft-lb)
Oil Relief Plug M18 (22) 4.0 - 5.0 KgM (29 - 36 ft-lb)
Oil Drain Plug M18 (19) 5.0 - 6.0 KgM (36 - 43 ft-lb)
Glow Plug M10 (12) 1.5 - 2.0 KgM (11 - 14 ft-lb)
Glow Plug Lead Wire Fitting Nut M4 (7) 10 - 15 KgCM (9 - 13 in-lb)
Liquid Cooled Diesel Engine Page 4 - 10
Rev. A
Workman 3300-D/4300-D