Engine Overhaul Manual v8 40 46 - Crankshaft end float check
ENGINE
52
OVERHAUL
17. Position seal protector LRT-12-095 to
crankshaft.
18. Fit seal using tools LRT-12-091 and
LRT-99-003 .
19. Remove seal protector LRT-12-095 .
20. Fit Woodruff key to crankshaft.
21. Check crankshaft end-float.
NOTE: If 0.508 mm (0.02 in) oversize main
bearings have been fitted, it may be
necessary to machine thrust faces of
crankshaft centre main bearing location to
achieve correct end-float. Ensure an equal
amount of material is removed from each thrust
face.
22. Fit big-end bearings.
23. Fit timing chain and gears.
24. Fit timing cover.
25. Fit flywheel or drive plate and ring gear
assembly.
Crankshaft end - float - check
1. Set-up DTI to measure end float.
2. Move crankshaft forwards and zero gauge.
3. Move crankshaft rearwards, record end-float
reading obtained.
Crankshaft end-float = 0.08 to 0.26 mm (0.003
to 0.010 in).
4. Remove DTI.
NOTE: Crankshaft end-float is controlled
by thrust faces on upper half of centre
main bearing shell. If crankshaft has been
reground and 0.508 mm (0.02 in) oversize main
bearing shells are to be fitted, it may be
necessary to machine thrust faces of crankshaft
centre main bearing journal to achieve correct
end-float. Ensure an equal amount of material is
removed from each thrust face.
