Mitsubishi S12A2 User Manual

2-22
Chapter 2 SERVICE DATA
2.2 Tightening Torque Spec for Fuel System
2.3 Tightening Torque Spec for Lubrication System
2.4 Tightening Torque Spec for Cooling System
2.5 Tightening Torque Spec for Inlet and Exhaust System
Description
Dia x Pitch
(M-thread)
Tightening torque
Remarks
N·m kgf·m lbf·ft
Fuel injection
pump
Coupling shaft 12 x 1.75 88 ± 5 9 ± 0.5 65 ± 3.6
Laminated plate
10 x 1.5 61.5 ± 2.5 6.25 ± 0.25 45.21 ± 1.81
Bosch S3S pump with bolt P.C.D.
ø85
12 x 1.75 88 ± 5 9 ± 0.5 65 ± 3.6
Bosch S3S pump with bolt P.C.D.
ø100, S7S pump
12 x 1.25 88 ± 5 9 ± 0.5 65 ± 3.6 MHI PS pump
Pump mounting
bolt
10 x 1.5 58 ± 2.9 5.9 ± 0.3 42.7 ± 2.2
Bracket 10 x 1.5 58 ± 5.8 5.9 ± 0.59 42.7 ± 4.27 10.9 bolt
Stay (pump back
face)
14 × 1.5 34 ± 3.4 3.5 ± 0.35 25.3 ± 2.53
Dedicated bolt with width across
flats 19
Stay
(Installing crank-
case)
10 x 1.5 58 ± 5.8 5.9 ± 0.59 42.7 ± 4.27 10.9 bolt
Stay (connect) 12 x 1.25 108 ± 11 11 ± 1.1 80 ± 8.0 10.9 bolt
Fuel rack control lever 8 x 1.25 25 ± 2.5 2.5 ± 0.25 18.1 ± 1.81 2-time tightening method
Fuel filter air vent plug 8 x 1.25 9 ± 1 0.9 ± 0.1 6.5 ± 0.7
Nozzle tip retaining nut 19 × 1.0 68.5 ± 9.5 7 ± 1 51 ± 7
Nozzle inlet connector 14 × 1.5 74 ± 5 7.5 ± 0.5 54.3 ± 3.6
Nozzle holder cap nut 14 x 1.0 44 ± 5 4.5 ± 0.5 32.6 ± 3.6
Nozzle holder eye bolt 10 × 1.0 17.5 ± 2.5 1.75 ± 0.25 12.66 ± 1.81
Nozzle gland (nut) 12 x 1.25 59 ± 2.9 6 ± 0.3 43 ± 2.2
S7S feed pump inlet 14 × 1.5 27 ± 2 2.75 ± 2.5 19.89 ± 18.1
Description
Dia x Pitch
(M-thread)
Tightening torque
Remarks
N·m kgf·m lbf·ft
Oil pan 10 x 1.5 39 ± 3.9 4 ± 0.4 19 ± 2.9
Description
Dia x Pitch
(M-thread)
Tightening torque
Remarks
N·m kgf·m lbf·ft
Water pump
Pump impeller 22 x 1.5 196 ± 29.6 20 ± 3.0 145 ± 22
Pump shaft pulley (nut) 24 × 1.5 260 ± 12 26 ± 1.2 188 ± 8.7
Sea water
pump
Pump cam 10 x 1.25 15 ± 1.5 1.5 ± 0.1 10.9 ± 0.7
Pump cover 10 x 1.25 7.5 ± 0.5 0.75 ± 0.05 5.42 ± 0.36
Pump shaft pulley (nut) 33 × 3.5 196 ± 10 20 ± 1 145 ± 7
Fan drive Drive pulley (nut) 30 x 1.5 441 ± 22 45 ± 2.3 325 ± 16.6 Apply Locktite 262
Water outlet pipe 10 x 1.25 54 ± 5 5.5 ± 0.5 39.8 ± 3.6
Description
Dia x Pitch
(M-thread)
Tightening torque
Remarks
N·m kgf·m lbf·ft
Exhaust manifold mounting bolt 10 x 1.5 64 ± 5 6.5 ± 0.5 47.0 ± 3.6
Exhaust manifold coupling (nut) 6 x 1.0 9 ± 0.45 0.9 ± 0.04 6.5 ± 0.29

Mitsubishi S12A2 Specifications

General

Brand	Mitsubishi
Model	S12A2
Category	Engine
Language	English