FLYWHEEL AND FLYWHEEL HOUSING INSPECT/REPLACE/ALlGN CONT).
Check face alignment as follows:
Attach dial gauge attachment (1) to crankshaft
The tip of the gauge must not
enter the capscrew holes or
the gauge will be damaged.
Attach dial gauge (3) to attachment and put tip
of dial gauge (3) against flywheel housing
The crankshaft must be pushed toward the
crankshaft end clearance each time a point
Use accessory drive to rotate crankshaft until
dial indicator is at 12:00 o'clock position. Push
crankshaft toward front of engine. Adjust dial
on indicator until needle points to 0 (zero).
Rotate crankshaft and check alignment of face of flywheel housing at 3:00 o'clock, 6:00 o'clock, 9:00 o'clock,
and 12:00 o'clock positions.
Determine total indicator run out (TIR).
The maximum allowable total indicator reading (TIR) depends on the diameter of the housing bore. See
specifications listed in step (i).
If alignment is not within specifications, remove housing. Check for nicks, burrs, or foreign material between
block and housing.
Check alignment again. If alignment is not within specifications, replace the housing.
Position two rear engine mounts in position on engine and skid. Install capscrews and tighten.
Remove lifting fixture used to support engine.
Bore Location Tolerance
787.40 to 787.65
31.000 to 31.010
647.70 to 647.95
25.500 to 25.510
584.00 to 584.20
23.000 to 23.008
447.68 to 447.80
17.625 to 17.630
409.58 to 409.70
16.125 to 16.130