FRONT COVER AND RELATED COMPONENTS 201
Table 19 Front Cover, Vibration Damper, Gerotor Oil Pump, Front Engine Mount, and G
ear Train
Specifications (cont.)
466 low-mount, (spin-on) 310 (12.2) 201.2 (7.92)
1.08 : 1
466 low-mount, Horton
DriveMaster)
310 (12.2) 201.2 (7.92)
1.08 : 1
570 low-mount, (spin-on) 310 (12.2) 201.2 (7.92)
1.3 : 1
570 low-mount, (Horton
DriveMaster)
310 (12.2) 201.2 (7.92)
1.3 : 1
466 low-mount, (bolt-on) 310 (12.2) 201.2 (7.92)
1.08 : 1
570 low-mount, (bolt-on) 310 (12.2) 201.2 (7.92)
1.3 : 1
NOTE: The high-mount and mid-mount fan drives share the same part number, however the fan drive is
inverted depending upon application.
Special Torque
Table 20 Front Cover, Vibration Damper, Gero
tor Oil Pump, Front Engine Mount, and Gear Train
Special Torques
Automatic belt tensioner assembly
50 N·m (37 lbf·ft)
Damper retaining plate bolts
163 N·m (120 lbf·ft)
Retorque all bolts until no
movement
End cover adapter (PTO equipped engines only) 52 N·m (38 lbf·ft)
Fandrive,high-mount,HortonDrive
Master (20, 18.3 in.)
26 N·m (19 lbf·ft)
Fan drive, mid-mount, Horton DriveMaster (16.2 in.) 26 N·m (19 lbf·ft)
Fan drive, low-mount, Horton DriveMaster (12.2 in.) 26 N·m (19 lbf·ft)
Fan spacer retaining bolt, M10
x 20 (bolt-on drive only)
52 N·m (38 lbf·ft)
Front cover mounting bolts (rear half) 26 N·m (19 lbf·ft)
Front engine mounting bracket bolts (4) 386 N·m (284 lbf·ft)
Horton DriveMaster bearing retainer nut
177 N·m (130 lbf·ft)
Lower idler gear mounting bolt
639 N·m (470 lbf·ft)
Oil pump and rotor housing M8 bolts 25 N·m (18 lbf·ft)
Upper idler gear mounting bolt
326 N·m (240 lbf·ft)
Viscous or rubber vibration damper mounting bolts
54 N·m (40 lbf·ft)
Water outlet tube ass
embly at cylinder head
33 N·m (24 lbf·ft)
Water outlet tube as
sembly at front cover
33 N·m (24 lbf·ft)
Wear plate (water pump) 7 N·m (60 lbf·in)
EGES-265-2
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
Follow all warnings, cautions, and notes.
© 2009 Navistar, Inc.
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