HAIMA 7 - Check;Repair of Crankshaft

Cylinder block and crank connecting rod mechanisms
81
Check/repair of crankshaft
1. As shown in the following Fig., fit the dial gauge, push forward/rearward the
crankshaft from its back, measure the end gap of crankshaft. If the end gap exceeded
the max. value, replace the stop bearing or grind the crankshaft, and fit the bearing
applicable to the reduced size of crankshaft to meet the standard end gap.
Standard end gap: 0.05～0.25mm{0.002～0.011in}
Max. end gap: 0.30mm{0.012in}
mm{in}
Size of stop bearing Thickness of stop bearing
Standard
1.925～1.975{0.0758～0.0778}
Reduced size of 0.25{0.01}
2.05～2.100{0.0807～0.0827}
Reduced size of 0.50{0.02}
2.175～2.225{0.0856～0.0876}
Reduced size of 0.75{0.03}
2.300～2.350{0.0906～0.0925}
2. Measure the radius run-out of crankshaft. Replace the crankshaft when necessary.
Max. radical run-out: 0.03mm{0.0012in}
3. At two points of A and B shown in Fig., measure the journal diameter in the directions
X and Y. replace the crankshaft or grind the journal when necessary and fit the
bearing applicable to the reduced size of crankshaft.
mm{in}
Main journal Diameter
Standard
49.982～50{1.9678～1.9685}
Reduce size: 0.25{0.01} 49.732～49.75{1.9580～1.9586