Discovery I (LJ) V8-4.0L (1996)
Crankshaft: Testing and Inspection
Checking Crankshaft End Play
1. Set-up DTI (Dial Indicator) to measure end play.
2. Move crankshaft forwards and zero gauge.
3. Move crankshaft rearwards, record end play reading obtained.
Crankshaft End play: 0.10 to 0.20 mm.
4. Remove DTI.
NOTE: Crankshaft end play is controlled by thrust faces on upper half of center main bearing shell. If crankshaft has been reground and 0.508
mm oversize main bearing shells are to be installed, it may be necessary to machine thrust faces of center main bearing shell to achieve correct end
play. Ensure an equal amount of material is removed from each thrust face.