CRANKSHAFT INSPECTION [MZR-CD 2.2]
id0110f2502500
1. Measure the main journal runout.
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• If it exceeds the maximum specification, replace the crankshaft.
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Main journal maximum runout
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0.05 mm {0.002 in}
2. Measure the main journal diameter in X and Y directions at the two points (A and B) as shown in the figure.
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• If it is not within the specification or if it exceeds the maximum out-of-round, replace the crankshaft or grind the journal and install the undersize bearing.
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Main Journal diameter
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STD: 59.937—59.955 mm {2.3598—2.3604 in}
U.S. 0.25 mm {0.01 in}: 59.687—59.705 mm {2.3499—2.3505 in}
U.S. 0.50 mm {0.02 in}: 59.437—59.455 mm {2.3401—2.3407 in}
U.S. 0.75 mm {0.03 in}: 59.187—59.205 mm {2.3302—2.3309 in}
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Main Journal out-of-round
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0.03 mm {0.001 in} max.
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Crank pin diameter
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STD: 50.940—50.955 mm {2.0056—2.0061 in}
U.S. 0.25 mm {0.01 in}: 50.690—50.705 mm {1.9957—1.9962 in}
U.S. 0.50 mm {0.02 in}: 50.440—50.455 mm {1.9859—1.9864 in}
U.S. 0.75 mm {0.03 in}: 50.190—50.205 mm {1.9760—1.9765 in}
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Crank pin out-of-round
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0.03 mm {0.001 in} max.
