Yanmar 1GM User Manual page 141

MULTICYLINDER ENGINES
Table 2 ENGINE SPECIFICATIONS (3GM AND 3GM30) (continued)
135
Valve head margin
seat width (Int. and exh.)
Valve depth-max.
Valve stem clearance
Intake
Exhaust
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 at Installed height
Rocker arm shaft clearance
Rocker arm shaft clearance-max.
Rocker arm bore wear limit
Rooker arm shaft wear limit
011
pump
Inner rotor tlp-to-outer rotor tip
Max.
Outer rotor-ta-pump body
Max.
Rotor side clearance
Max.
Shaft clearance
Max.
0.75-1.15 mm (0.030-0.045 In.)
1.77 mm (0.070 In.)
1.25 mm (0.049 In.)
0.040-0.065 mm (0.0016-0.0026 In.)
0.045-0.070 mm (0.0018-0.0028 ln.)
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.)
29.2 mm (1.15 In.)
16.16 kg at 29.2 mm (35.63 lb. at 1.15 In.)
0.016-0.052 mm (0.0006-0.0020 In.)
0.15 mm (0.006 In.)
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 3 ENGINE SPECIFICATIONS (3HM AND 3HM35)
Bore
3HM
3HM35
Stroke
Displacement
3HM
3HM35
Number of cylinders
Firing order
Cylinder bore diameter (3HM35)
Cylinder liner diameter (3HM)
Max.
Cylinder liner protrusion (3HM)
Borelliner out-of-round-max.
Cylinder block warpage-max.
Piston diameter
3HM
Standard
Wear limit
3HM35
Standard
Wear limit
Piston top clearance
Piston ring side clearance
Top ring
Second ring
75 mm (2.95 In.)
80 mm (3.15 In.)
85 mm (3.35 In.)
1126 cc (68.7 cu. In.)
1282 cc (78.2 cu. In.)
3
1-2-3
80.000-80.030 mm (3.1496-3.1508 In.)
75.00 mm (2.9528 In.)
75.10 mm (2.9567 In.)
0.005-0.075 mm (0.0002-0.0030 In.)
0.02 mm (0.0008 In.)
0.05 mm (0.002 In.)
74.907-74.937 mm (2.9491-2.9503 In.)
74.850 mm max. (2.9468 In.)
79.902-79.932 mm (3.1457-3.1470 In.)
79.840 mm max. (3.1433 In.)
0.66-0.86 mm (0.026-0.034 In.)
0.065-0.100 mm (0.0026-0.0039 In.)
0.035-0.070 mm (0.0014-0.0028 In.)
(continued)