WEICHAI WP12 User Manual

40
TIGHTENING TABLE AND TORQUE VALUES FOR MAIN FASTENERS
DESCRIPTIONS
SPECIFICATIONS
(SIZE – GRADE)
REQUIREMENTS
ALLOWABLE
TIMES
TO REUSE
Main bearing bolt M18X169 - 10.9 140N.m+210° 2
Crankcase secondary bolt M8X 25 - 8.8
M8X210 - 8.8
8N.m+30
2
Cylinder head main bolt M14X185 - 10.9 60N.m+2×120° 3
Cylinder head secondary
bolt
M12×1.5X195 - 8.8 20+10N.m Seal
with Loctite 262
Sealant
3
Cylinder head secondary
nut
25N.m+2×120°
3
Crankshaft pulley bolt M12×1.5X75 - 10.9 45N.m+135° 2
Bolt for tensional
vibration damper
M10X30 - 8.8 15N.m+30°
2
Flywheel bolt M16×1.5X
120-10.9
105N.m+270°
2
Connecting rod bolt
M14×1.5X
67.5 - 10.9
115N.m+90°
(Manual
tightening)
0
80N.m+153°
(Automatic
tightening)
Idler gear bolt pin M12×1.5X90 - 10.9 105N.m 0
Injector clamping bolt M8X50 - 8.8 8N.m+90 3
Camshaft gear bolt M8X30 - 8.8 8N.m+120° 2
Piston cooling injector bolt M10X25 30N.m 0
Exhaust manifold bolt M10X65 15N.m+60° 2
Standard torque table
Bolt size Grade Torque value Grade
Torque
Value
Standard M6 bolt 8.8 8 Nm 10.9 13 Nm
Standard M8 bolt
8.8 22 Nm 10.9 31 Nm
Standard M10
bolt
8.8 39 Nm 10.9 58 Nm
Standard M12
bolt
8.8 70 Nm 10.9 100 Nm
Table 5.3

WEICHAI WP12 Specifications

General

Engine Model	WP12
Number of Cylinders	6
Displacement	11.596 L
Bore x Stroke	126 mm x 155 mm
Compression Ratio	17:1
Max Torque	2100N.m
Weight	1100 kg
Fuel System	High Pressure Common Rail
Fuel Consumption	≤195g/kWh