FRONT COVER AND RELATED COMPONENTS 157
Table of Contents
Description...............................................................................................................159
Front Cover assemblies......................................................................................159
Gerotor oil pump assembly..................................................................................159
Checking Gear Train Timing without Removing Front Cover...................................................16
2
DT 466 Engines Only..........................................................................................162
Method One – Using a Feeler Gauge.............................................................162
Method Two – Using a Dial Indicator..............................................................162
DT 570 and HT 570 Engines Only...........................................................................163
Method One – Using a Feeler Gauge.............................................................163
Method Two – Using a Dial Indicator..............................................................163
Removal...................................................................................................................164
Alternator Bracket.............................................................................................164
Flat Idler Pulley and Automatic Belt Tensioner...........................................................165
Water Supply Housing........................................................................................165
Water Inlet Elbow, Water Outlet Tube, and Thermostat.................................................165
Fan Drive Hub..................................................................................................166
Water Pump Assembly........................................................................................167
Vibration Damper, Damper Hub, and Wear Sleeve.......................................................168
Gerotor Assembly Oil Pump and Front Oil Seal..........................................................169
Front Engine Mount.............. . . . . ............ .. . .............. . . . . ............ .. . . ............ .. . .........171
Front Cover (Front Half)......................................................................................172
Generation 1 (Mounting Bolts).....................................................................172
Generation 2 (Mounting Bolts).....................................................................173
Idler Gears......................................................................................................174
Front Cover (Rear Half).......................................................................................176
Inspection.................................................................................................................177
Checking Lower Idler Gear Backlash......................................................................177
Checking Upper Idler Gear Backlash.......................................................................177
Checking Camshaft Gear Backlash.........................................................................178
Gerotor Oil Pump Clearance ................................................................................178
Measuring Oil Pump Side Clearance.............................................................178
Measuring Oil Pump End Clearance..............................................................179
Installation................................................................................................................180
Front Cover.....................................................................................................180
Gaskets................................................................................................180
Mounting Bolts (Rear Half).........................................................................181
Idler Gears......................................................................................................182
Front Cover (Front Half)......................................................................................184
Gaskets................................................................................................184
Generation 1 (Mounting Bolts).....................................................................185
Generation 2 (Mounting Bolts).....................................................................186
Front Engine Mount.............. . . . . ............ .. . .............. . . . . ............ .. . . ............ .. . .........187
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.
To Next Page
Loading...
