eotts–01
CRANKSHAFT INSPECTION AND REPAIR
1. INSPECT CRANKSHAFT FOR RUNOUT
(a) Place the crankshaft on V–blocks.
(b) Using a dial indicator, measure the circle runout at the
No.2 and No.3 journals.
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:
STD
63.985 – 64.000 mm (2.5191 – 2.5197 in.)
U/S 0.25
63.745 – 63.755 mm (2.5096 – 2.5100 in.)
U/S 0.50
63.495 – 63.505 mm (2.4998 – 2.5002 in.)
Crank pin diameter:
STD
54.987 – 55.000 mm (2.1648 – 2.1654 in.)
U/S 0.25
54.745 – 54.755 mm (2.1553 – 2.1557 in.)
U/S 0.50
54.495 – 54.505 mm (2.1455 – 2.1459 in.)
If the diameter is not as specified, check the oil cle–
arance. (See 3 or 6 page EG2–99 or 102)
(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 or out–of–round is greater than maxi–
mum, grind or replace the crankshaft.
3. IF NECESSARY, GRIND AND HONE MAIN
JOURNALS AND/OR CRANK PINS
Grind and hone the main journals and/or crank pins to
the finished undersized diameter (See procedure step
2).
Install new main journal and/or crank pin undersized
bearings.
–ENGINE ENGINE MECHANICAL
EG2–113
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