Crankshaft Inspection - Toyota 1 MZ–FE Manual

1MZ–FE ENGINE – ENGINE MECHANICAL

CRANKSHAFT INSPECTION

1. INSPECT CRANKSHAFT FOR CIRCLE RUNOUT
(a) Place the crankshaft on V–blocks.
(b) Using a dial indicator, measure the circle runout, as
shown in the illustration.
Maximum circle runout:
0.06 mm (0.0024 in.)
If the circle runout is greater than maximum, replace
the crankshaft.
2. INSPECT MAIN JOURNALS AND CRANK PINS
(a) Using a micrometer, measure the diameter of each
main journal and crank pin.
Main journal diameter:
60.988 –61.000 mm (2.4011 – 2.4016 in.)
Crank pin diameter:
52.994 – 53.000 mm (2.0864 – 2.0866 in.)
If the diameter is not as specified, check the oil clear–
ance (See steps 3 or6 on page
necessary, replace the crankshaft.
(b) Check each main journal and crank pin for taper and
out–of–round as shown.
Maximum taper and out–of–round:
0.02 mm (0.0008 in.)
If the taper and out–of–round is greater than maxi–
mum, replace the crankshaft.
EG2–159
EG2–142 or 145). If