The front cover forms a sealed compartment for the engine gear train. See Figure
Front Cover Location
The front cover has a raised area that is used to indicate Top-Dead-Center of the No. 1 piston for fuel injector pump timing. See Figure
. The front cover also serves as a retainer for the front oil seal.
Replacement of Front Cover
To determine if repair of the front cover is necessary, perform the following procedure. See Figure
Flowchart for Repair or Replacement of Front Cover
Removal of Front Cover
Remove the front cover as follows:
To avoid personal injury when blow drying, wear adequate eye protection (safety glasses or face plate) and do not exceed 276 kPa (40 lb/in. 2
) air pressure.
Preclean the front cover prior to removal using clean fuel oil and dry with compressed air.