Nanni T4.155 seriers, Руководство по ремонту

Страница: 180 / 191

60300140 (
indice A
) 4 CYLINDERS WORKSHOP MANUAL 180/191
CHECKING BALANCING SHAFTS
CHECK RIGHT AND LEFT BALANCING SHAFTS
a. Use a bore checker to measure the inside diameter of the
balancing rod bearing.
Bearing inside diameter (measured from the front of
the engine).
No.1:
42.000 – 42.020 mm
No.2: 41.000 – 41.020 mm
No.3: 32.000 – 32.020 mm
b. Measure the external diameter of the balancing shaft bearing
pivot.
External diameter of the bearing trunnion (measured
from the front of the engine):
No.1:
41.941– 41.960 mm
No.2: 40.931 – 40.950 mm
No.3: 31.941 – 31.960 mm
c. Subtract the measurement of the balancing shaft bearing
outside diameter from the balancing shaft bearing inside
diameter.
Nominal lubrication clearance:
No.1:
0.040 – 0.079 mm
No.2: 0.040 – 0.079 mm
No.3: 0.050 – 0.089 mm
Limit lubrication clearance:
No.1:
0.18 mm
No.2: 0.19 mm
No.3: 0.18 mm
Replace the cylinder block and the balancing shaft when the lubrication
clearance limit is exceeded.