Yanmar 3GMD - Page 143

MULTICYLINDER ENGINES
Table 3 ENGINE SPECIFICATIONS (3HM AND 3HM35) (continued)
137
Valve stem clearance (continued)
Max. stem clearance
Valve stem diameter
Valve stem wear
limit
Valve stem runout-max.
Valve guide diameter
Valve guide wear
limit
Valve guide protrusion
Valve
spring
Standard free length
Min. free length
Installed
height
Pressure and Installed height
Rocker arm shaft clearance
Rocker arm shaft
clearance-max.
Rocker arm bore wear limit
Rocker arm shaft wear limit
Oil pump
Inner
rotor tlp-to-outer rotor tip
Max.
Outer rotor-to-pump
body
Max.
Rotor side clearance
Max.
Shaft clearance
Max.
0.15 mm (0.006 In.)
7.000 mm (0.2756 In.)
6.900 mm (0.2717 In.)
0.03 mm (0.0012 In.)
7.000 mm (0.2756 In.)
7.080 mm (0.2878 In.)
7.0 mm (0.276 In.)
38.5 mm (1.52 In.)
37 mm (1.46 In.)
30.2 mm (1.19 In.)
14.43 kg at 30.2 mm (31.81 lb. at 1.19 In.)
0.016-0.052 mm (0.0006-0.0020 In.)
0.15 mm (0.006 ln.)
14.10 mm (0.555 In.)
13.90 mm (0.547 In.)
0.050-0.105 mm (0.0020-0.0041 In.)
0.15 mm (0.006 in.)
0.050-0.105 mm (0.0020-0.0041 in.)
0.15 mm (0.006 In.)
0.030-0.080 mm
0.13 mm (0.005 In.)
0.015-0.050 mm (0.0006-0.0020 In.)
0.20 mm (0.0079 In.)
Table 4 TIGHTENING TORQUES
Fastener N-m
ft.-lb. in.-Ib.
Connecting rod 25 18
216
Cylinder head
M8
30 22
M12 120
88
3HM,3HM35
M8 30 22
M12 130
95
Exhaust elbow (2GM, 2GM20) 45
33
Exhaust manifold (3-cylinder) 45
33
Flywheel 65-70 48-51
Intermediate bearing
housing
2GM, 2GM20, 3GM, 3GM30
30-35
22-25
3HM,3HM35 45-50 33-36
Retaining (set) bolt 45-50 33-36
Rear main bearing
housing 25 18
Timing gearcase 15
11
011 pump
8 17