Crankshaft, Engine
1mCRANKSHAFTCrankshaft Main Journal Diameter:
Standard Upper Bearing Center Wall Thickness (No. 1 and No. 4 Journal) (part 1):
Standard Upper Bearing Center Wall Thickness (No. 1 and No. 4 Journal) (part 2):
Standard Lower Bearing Center Thickness (No. 1 and No. 4 Journal):
Standard Upper Bearing Center Thickness (No. 2 and No. 3 Journal):
Standard Lower Bearing Center Thickness (No. 2 and No. 3 Journal):
Inspect for circle runout.
Place the crankshaft on the V-blocks.
Using a dial indicator, measure the circle runout at the center journal.
Maximum circle runout: 0.06 mm (0.0024 inch)
If the circle runout is greater than the maximum, replace the crankshaft.
Inspect the main journals.
Using a micrometer, measure the diameter of each main journal.
Standard journal diameter: 60.988 to 61.00 mm (2.4011 to 2.4016 inch)
If the diameter is not as specified, check the oil clearance. If necessary, replace the crankshaft.
Check each main journal for taper and out-of-round as shown in the illustration.
Maximum taper and out-of-round: 0.02 mm (0.0008 inch)
If the taper and out-of-round is greater than the maximum, replace the crankshaft.
Inspect the crank pin.
Using a micrometer, measure the diameter of each crank pin.
Diameter: 52.992 to 53.000 mm (2.0863 to 2.0866 inch)
If the diameter is not as specified, check the oil clearance. If necessary, replace the crankshaft
Check each crank pin for taper and out-of-round as shown in the illustration.
Maximum taper and out-of-round: 0.02 mm (0.0008 inch)
If the taper and out-of-round is greater than the maximum, replace the crankshaft.