Crankshaft, Main Bearings, And Flywheel - Yanmar YM276 Service Manual

20-004 Specifications and Special Tools
Crankshaft,
Main Bearings and
Flywheel
ITEM NEW PART SPECIFICATIONS WEAR LIMIT
Crankshaft end play
. . . . . . . . . . . . . . .
0.09 to 0.19 mm (0.0035 to 0.0075 in.)
. . . . . . . . .
0.33 mm (0.013 in.)
Main bearing I.D.
Rear (Flywheel side)
. . . .
. . . . . . .
65.000 to 65.045 mm (2.559 to 2.560 in.)
65.10 mm (2.563 in.)
Others
. . . . . . . . . . . . . . . . . . . . . .
60.00 to 60.045 mm (2.362 to 2.364 in.)
. . . . . . . .
60.10 mm (2.366 in.)
Bearing-to-journal oil
clearance
. . . . . . .
. . . . . . .
0.036 to 0.095 mm (0.0014 to 0.0037 in.) 0.15 mm (0.006 in.)
Main bearing journal O.D.
Rear (Flywheel side)
. . . . . . . . . . . . .
64.950 to 64.964 mm (2.5571 to 2.5576 in.)
. . . . . .
64.920 mm (2.556 in.)
Others
. . . . . . . . . . . . . . . . . . . . . .
59.950 to 59.964 mm (2.360 to 2.361 in.)
. . . . . . .
59.92 mm (2.359 in.)
Flywheel clutch surface
Flatness
. . . . . . . . . . . . . . . . . . . . .
14.935 to 14.953 mm (0.588to 0.588
in.)
Clutch shaft-to-bushing oil
clearance
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
0.3 mm (0.012 in.)
TOROUES
Main bearing housing
half cap screws
. . . . . . . . . . . . . . . . .
44.1 to 49.0 Nm (4.5 to 5.0 kgml (32.5 to 36.1 ft-lbs)
Intermediate bearing housing
set screws
. . . . . . . . . . . . . . . . . . . .
68.6 to 73.5 Nm (7.0 to 7.5 kgm) 150.6 to 54.2 ft-lbs)
Rear main bearing housing-to-
block capscrews
. . . . . . . . . . . . . . . .
24.5 to 26.5 Nm (2.5 to 2.7 kgm) (18.5 to 19.5 ft-lbs)
Flywheel-to~rankshaft
. . . . . . .
cap screws
68.6 to 73.5 Nm (7.0 to 7.5 kgm) (50.6 to 54.2 ft-lbs)
Crankshaft Gear-te
crankshaft
. . . . . . . . . . . . . . . . . . . .
69 t o 73 Nm (7.0 to 7.5 kgm) (51 to 54 ft-lbs)
Crankshaft pulley-to.
crankshaft
. . . . .
17.6 to 19.6 Nm (18.0 to 20.0 kgm) (13.0 to 14.4 ft-lbs)
. . .