MULTICYLINDER ENGINES
135
Table
2
ENGINE SPECIFICATIONS
AND
(continued)
head margin
0.75-1.15 mm (0.030-0.045 in.)
Seat width (int. and exh.)
1.77 mm (0.070 in.)
Valve
1.25 mm (0.049 in.)
Valve stem ciearance
intake
0.040-0.065 mm (0.0016-0.0026 in.)
Exhaust
0.045-0.070 mm (0.0018-0.0028 in.)
Max. stem clearance
0.15 mm (0.006 in.)
Valve stem diameter
7.000 mm (0.2756 in.)
Valve stem wear
6.900 mm (0.2717 in.)
Valve stem runout-max.
0.03 mm (0.0012 in.)
Valve guide diameter
7.000 mm (0.2756 in.)
Valve guide wear
7.080 mm (0.2878 in.)
guide protrusion
7.0 mm (0.276 in.)
Vaive spring
Standard free length
38.5 mm (1.52 in.)
Min. free length
37 mm (1
in.)
Installed height
29.2 mm (1.15 in.)
Pressure at installed height
16.16 kg at 29.2 mm (35.63 ib. at 1.15 in.)
Rocker arm shaft clearance
0.016-0.052 mm (0.0006-0.0020 in.)
Rocker arm shaft clearance-max.
0.15 mm (0.006 In.)
Rocker arm bore wear limit
14.10 mm (0.555 in.)
Rooker arm shaft wear
13.90 mm (0.547 in.)
Oil pump
inner rotor
rotor tip
0.050-0.105 mm (0.0020-0.0041 in.)
Max.
0.15 mm (0.006 in.)
Outer rotor-to-pump body
0.050-0.105 mm (0.0020-0.0041 in.)
Max.
0.15 mm (0.006 in.)
Rotor side clearance
0.030-0.080
Max.
0.13 mm (0.005 in.)
Shaft clearance
0.015-0.050 mm (0.0006-0.0020 in.)
Max.
0.20
(0.0079 in.)
Table 3 ENGINE SPECIFICATIONS
AND
Bore
3HM
Stroke
Displacement
3HM
Number of cylinders
Firing order
Cylinder bore diameter
Cylinder liner diameter
Max.
Cyiinder liner protrusion
Cyiinder
Piston diameter
3HM
Standard
Wear limit
Standard
Wear limit
Piston top clearance
Piston ring side clearance
Top ring
Second ring
75 mm (2.95 in.)
80
(3.15 in.)
85 mm (3.35 in.)
1126 cc (68.7 cu. in.)
1282 cc (78.2 cu. in.)
3
80.000-80.030 mm
in.)
75.00 mm (2.9528 in.)
75.10 mm (2.9567 In.)
0.005-0.075
(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
max. (2.9468 in.)
79.902-79.932 mm (3.1457-3.1470 in.)
79.840 mm
(3.1433 in.)
(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.)
Summary of Contents for 1GM10
Page 1: ...YANMAR DIESEL INBOARD SHOP MANUAL ONE TWO 8 THREE CYLINDER ENGINES...
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Page 28: ...GENERAL INFORMATION 21 Bearing Blocks Press Shaft arm Bearing Spacer Press k 4 bed...
Page 36: ...30 CHAPTER TWO CHARGING SYSTEM TYPICAL Battery switch...
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Page 44: ...38 CHAPTER TWO LUBRICATION SYSTEM 2GM AND 2GM20 MODELS...
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Page 112: ...106 CHAPTER SIX...
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Page 145: ...FUEL INJECTION AND GOVERNOR SYSTEMS 139 FUEL INJECTION SYSTEM Fuel tank hose fuel pipe...
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Page 170: ...164 CHAPTER EIGHT CLOSED COOLING SYSTEM TYPICAL rnlxlng elbow Joint...
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Page 224: ...218 CHAPTER ELEVEN...
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