Yanmar 2YM15 Service Manual Page 105
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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4. Disassembly and reassembly
85R1
(21)Turning the engine over
1) Place a wood block of appropriate size on the floor,
and stand up the engine on the flywheel housing.
2) Remove the engine mounting feet.
(22)Removing the crankshaft V-pulley
Loosen the bolt tightening the crankshaft V-pulley and
remove the crankshaft V-pulley with a pulley puller.
(23) Removing the oil pan
Remove the oil pan and spacer.
(24)Removing the lube oil inlet pipe
Remove the lube oil inlet pipe and O-ring.
(25)Removing the gear case
Loosen the gear case cover bolts, and remove the gear
case cover from the gear case.
Bolt
Washer
Crankshaft V-pully
Gear case
cover
Oil pan
Wood block
Flywheel housing
Oil pan
Oil pan spacer
Cylinder block
Liquid gasket
977770
-01212
977770
-01212
O-ring
Lube oil inlet pipe
- 3YM30/3YM20/2YM15 1
- Printed in Japan 2
- M9961-03E101 2
- California 3
- Proposition 65 Warning 3
- CONTENTS 4
- FOR SAFETY 10
- Well fitting !! 12
- 1. General 16
- 1.2 Specifications 17
- 1.3.1 Fuel oil 20
- 1.3.2 Lubricating oil 20
- 1.3.3 Cooling water 21
- 1.4 Engine outline 22
- 1.General 23
- 007018-00E 25
- 1.5 Piping diagrams 28
- 5 YDX M 1.11 P 3 N 32
- (b) Exhaust gas back pressure 33
- (a) Fuel injection nozzle 34
- (b) Fuel injection pump 34
- 2. Inspection and adjustment 35
- 2. Inspection and adjustment 36
- 2.2.1 Check before starting 37
- (4) Seawater outlet 38
- (5) Check cooling water level 38
- Sediment 40
- 10 MINUTES 41
- Alternator 42
- Belt adjuster 42
- Set bolt 42
- (Valve clearance) 43
- (Normal) (Abnormal) 43
- (Valve clearance adjustment) 44
- (Fuel filter) 45
- Battery charge measurement 48
- 20 = St + 0.007 ( t - 20 ) 49
- (Hydrometer structure) 49
- (How to read hydrometer) 49
- (Oil drain pump) 50
- Pressue cap 53
- Fresh water 53
- Coolant tankNotches 53
- To fresh water 54
- Rubber hose 54
- (L-type mixing elbow) 55
- Optional 55
- (U-type mixing elbow) 55
- Injection nozzle 58
- Nozzle tester 58
- (Abnormal spray pattern) 60
- (Normal spray pattern) 60
- NP - DN O P D N159 61
- Test pressure 62
- 0.20 MPa (2 kgf/cm 62
- (Breather system component) 63
- 2.4 Sensor Inspection 64
- 2.5 Thermostat inspection 65
- 2.6 Adjusting operation 66
- 2.7 Long storage 68
- 3. Troubleshooting 69
- Cause and Effect 77
- Countermeasure 77
- 3. Troubleshooting 79
- Compression 82
- 4. Disassembly and reassembly 84
- 4.2.1 General hand tools 85
- Local supply 1 set 86
- H = Shaft type 87
- S = Hole type 87
- 4.2.2 Special hand tools 88
- (Local supply) 89
- (Removing the coupling) 89
- (Tool 1) 90
- (Tool 2) 90
- 4.2.3 Measuring instruments 91
- (2) Use of tools 92
- Revolving shaft 94
- Reflection mark 94
- High pressure 94
- 4.2.4 Other material 95
- [Notice] 96
- 4.3.1 Disassembly 97
- (Cooling water pipes) 100
- (Seawater pump) 101
- (Removing flywheel) 104
- (21)Turning the engine over 105
- (23) Removing the oil pan 105
- (25)Removing the gear case 105
- (28) Removing the camshaft 106
- (27)Removing the idle gear 106
- (30) Removing the gear case 107
- (32)Turning the engine over 107
- (34)Removing the main bearing 108
- (35)Removing the crankshaft 108
- (36)Removing the tappets 108
- 4.3.2 Reassembly 109
- (Journal bearing cap) 110
- (Piston ring) 111
- (Ring joints) 111
- (Camshaft side gap) 112
- (Idle gear shaft) 113
- (Gear train) 113
- Lube oil inlet pipe 26 (2.6) 114
- (18) Mounting the flywheel 115
- 006757-00E 116
- 006758-00E 116
- (31) Mounting the alternator 121
- (35) Electrical Wiring 122
- (37) Filling with lube oil 122
- (39) Test running 123
- 5.1 Cylinder block 124
- 001494-00E 126
- 5.2 Cylinder head 127
- Straight-edge 128
- Thickness gage 128
- (Valve lapping tool) 129
- (Valve sink depth) 130
- (Valve sink) 130
- (4) Valve guide 131
- (Stem seal insertion) 132
- 001509-00E 132
- Free length 132
- 001511-00E 132
- (3 cylinder head) 133
- (2 cylinder head) 133
- 001515-00E 134
- 001516-00E 134
- (Refer to 2.2.2(8).) 135
- 5.3 Piston and piston pins 136
- 5.3.2 Piston pin 137
- (Ring components) 138
- (Measuring side clearance) 138
- 180°) the oil ring gap 140
- 5.4 Connecting rod 141
- (Connecting rod side gap) 142
- Plastic gauge 143
- Alignment mark (Punched mark) 143
- Matching mark 143
- (Connecting rod small end) 144
- (Inspection by color check) 145
- (Crankshaft bend measurement) 145
- (Crankshaft R machining) 146
- 5.5.2 Main bearing 147
- 5.6 Camshaft and tappets 148
- (Camshaft outside diameter) 149
- (Camshaft bend) 149
- 5.6.2 Tappets 150
- 5.7 Timing gear 151
- 5.8 Flywheel and housing 152
- 5.8.2 Damper disc 153
- 6. Fuel injection equipment 154
- (1) Service data 155
- 2) Service data for 3YM20 156
- 3) Service data for 2YM15 157
- (2) Fuel adjustment procedure 158
- (Adjustment procedure for 7)) 159
- 6.2 Fuel feed pump 165
- N•cm(kgf•cm) 166
- 001568-00E 167
- Inlet valve Outlet valve 167
- 6.3 Fuel filter 168
- 6.4 Fuel tank 169
- 7. Intake and exhaust system 170
- 7.2 Exhaust system 172
- 8. Lubrication system 173
- 8.2 Lube oil pump 174
- (Outer diameter clearance) 175
- (Side clearance) 175
- 8.3 Lube oil filter 176
- 8. Lubrication system 177
- 9. Cooling water system 178
- 9.2 Seawater pump 180
- (3) Mount the impeller 182
- 9.3 Fresh water pump 183
- Thickness gauge 184
- 001582-00E 184
- 9. Cooling water system 185
- 9.4 Heat exchanger 186
- 9.5.3 Pressure cap inspection 187
- 9.5.4 Replacing filler neck 188
- Filler cap 189
- Coolant recovery tank 189
- 9.6 Thermostat 190
- 9.7.1 Introduction 191
- 9.7.2 Description 192
- 9.7.3 Cautions 192
- 9.7.4 Assembly procedure 193
- Fixing hole 194
- Delivery nozzle 194
- 9.7.5 Cautions for assembling 195
- 9.7.6 Troubleshooting 196
- 10.1 Specifications 197
- 11. Remote control (Optional) 198
- (2) Remote control cable 199
- (3) Engine stop cable 199
- (1) Speed control 200
- (Remote control cable clamp) 201
- (KM2P-1 marine gear) 201
- (1) Shift lever adjustment 203
- (2) Throttle lever adjustment 203
- 12. Electrical system 204
- 12.1.1 Wiring diagram 205
- 12.2 Battery 206
- 12.3 Starting motor 207
- 12.3.3 Structure 208
- (2) Structure 209
- 12.4.1 Specifications 210
- Rotative direction 211
- (Standard characteristics) 212
- (Inspection of V pulley) 213
- Clearance 213
- 12.5.1 Specifications 214
- 12.5.2 Structure 215
- 12. Electrical System 217
- 12.7 Warning devices 218
- M16 x 1.5 219
- 12.8 Glow plug 220
- Stop solenoid 221
- Governor 221
- Emergency stop button 221
- 13. Service standards 222
- 13.2 Engine body 223
- (5) Tappet and push rod 224
- (1) Camshaft 224
- (3) Backlash of each gear 224
- 13.2.3 Cylinder block 225
- (4) Piston and ring 226
- (5) Connecting rod 227
- 13. Service standards 228
- 14.1 Main bolt and nut 229
- SERVICE MANUAL 230
- YANMAR CO,. LTD 231
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