Crankshaft Inspection for Engine Overhaul - v8 40 46
ENGINE
48
OVERHAUL
Crankshaft position sensor - remove
1. Remove 2 bolts securing crankshaft position
sensor to gearbox adaptor plate, remove
sensor; collect spacer - if fitted.
Crankshaft - inspection
1. Clean crankshaft and blow out oil passages.
2. Support crankshaft front and rear bearing
journals on vee blocks, and using a DTI,
measure run-out on centre main bearing.
Maximum permitted run-out = 0.08 mm (0.003
in).
If run-out exceeds permitted maximum,
crankshaft is unsuitable for regrinding and
should be replaced.
