Yanmar YM276 Service Manual page 88

20-00-2 Specifications and Special Tools
Cylinder Head, Valves and Camshaft (Continued)
ITEM NEW PART SPECIFICATIONS WEAR LlMT
Camshaft Bearing-to-journal
Oil Clearance
Flywheel side
. . . . . . . . . . . . . . . . . . .
0.04 to 0.08 mm (0.001 to 0.003 in.)
. . . . . . . . . .
0.12 mm (0.004 in.)
Others
. . . . . . . . . . . . . . . . . . . . . . .
0.05 to 0.10 mm (0.002 to0.004 in.)
. . . . . . . . . .
0.15 mm (0.006 in.)
Camshaft Lobe O.D.
Intake exhaust valve
. . . . . . . . . . . . . .
35.00 mm (1.378 in.)
. . . . . . . . . . . . . . . . . . . .
34.50 mm (1.358 in.)
Fuel pump
. . . . . . . . . . . . . . . . . . . .
45.00 mm (1.772 in.)
. . . . . . . . . . . . . . . . . . . .
44.90 mm (1.768 in.)
Tappet O.D.
. . . . . . . . . . . . . . . . . . . . .
9.98 to 9.99 mm (0.393 to 0.394 in.)
. . . . . . . . . .
9.95 mm (0.392 in.)
Tappet Bore I.D.
. . . . . . . . . . . . . . . . . .
10.005 to 10.020 rnm (0.394 to 0.395 in.)
. . . . . .
10.07 mm (0.396 in.)
Oil Clearance
. . . . . . . . . . . . . . . . . . . . .
0.01 to 0.04 mm (0.0004 to 0.0016 in.)
. . . . . . . .
0.10 mm (0.004 in.)
. . . . . . . . . . . . . . . . . . . .
Push Rod Bend
. . . . . . . . . . . . . . . . . . .
0.03 mm (0.0012 in.)
0.3 mm (0.012 in.)
Push Rod Length
. . . . . . . . . . . . . . . . . .
188.0mm (7.401 in.)
. . . . . . . . . . . . . . . . . . . .
187.5 rnm (7.382 in.)
TORQUES
Cylinder Head Bolts and Nuts
Initial
. . . . . . . . . . . . . . . . . . . . . . . .
39 Nm (4.0 kgml (29 ft-lbs)
Second
. . . . . . . . . . . . . . . . . . . . . . .
78 Nm (8.0 kgm) (58 ft-lbs)
Final
. . . . . . . . . . . . . . . . . . . . . . . .
127 Nm (13.0 kgm) (94 ft-lbs)
Cylinder Head Assist Bolts and Nuts
. . . . . .
29 Nm (3.0 kgml (22 ft-lbs)
. . . . . . . .
Rocker
Arm
Shaft
Support
Nuts 54 Nm (4.5 to 5.6 kgm) (40 ft-lbs)
liming Gear Cover Cap Screws
. . . . . . . . .
25 to 27 Nm (2.5 to 2.7 kgm) (18 to 19.5ft-lbs)
Governor Weight Suppon
Securing Nut
...................
74 Nm (7.0 to 7.5 kgm) (54
ft-lbs)
Camshaft Ball Bearing
Retainer Screw
. . . . . . . . . . . . . . . . . .
20 Nm (2.0 kgm) (15 ft-lbs)
Cam Gear & F.I. Cam Nut
. . . . . . . . . .
68 Nm (7.0 kgml (50 ft-lbs)