Husqvarna FC 450 2014 Repair Manual page 6

TABLE OF CONTENTS
17.4.3 Removing the oil pressure regulator
valve ............................................................. 145
17.4.4 Checking spring length of oil pressure
regulator valve .............................................. 145
17.4.5 Installing the oil pressure regulator valve ..... 146
17.4.6 Changing the crankshaft seal ring in the
clutch cover.................................................. 146
17.4.7 Removing the water pump ........................... 146
17.4.8 Installing the water pump ............................. 14 7
17.4.9 Removing the timing chain sprocket ............ 148
17.4.10 Installing the timing chain sprocket .............. 148
17.4.11 Changing the connecting rod, conrod
bearing, and crank pin ................................. 148
17.4.12 Checking crankshaft run-out at bearing
pin ................................................................. 150
17.4.13 Cylinder - Nikasil
17.4.14 Checking/measuring the cylinder ................. 150
17.4.15 Checking/measuring the piston ................... 151
17.4.16 Checking the piston ring end gap ................ 151
17.4.17 Measuring the piston/cylinder mounting
clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 52
17.4.18 Checking the oil pumps ............................... 152
17.4.19 Disassembling the autodecompressor ......... 152
17.4.20 Assembling the autodecompressor ............. 153
17.4.21 Checking camshaft ...................................... 154
17.4.22 Checking the timing assembly ..................... 154
17.4.23 Removing the rocker arm ............................. 155
17.4.24 Removing the valves .................................... 155
17.4.25 Changing camshaft bearing ......................... 156
17.4.26 Checking the valves ..................................... 156
17.4.27 Checking valve springs ................................ 157
17.4.28 Checking valve spring seat .......................... 157
17.4.29 Checking the cylinder head .......................... 157
17.4.30 Checking the rocker arm shafts ................... 158
17.4.31 Installing the valves ...................................... 158
17.4.32
Installing the rocker arm ............................... 159
17.4.33 Checking the clutch ..................................... 160
17.4.34 Checking the shift mechanism ..................... 161
17.4.35 Preassembling the shift shaft ....................... 162
17.4.36 Disassembling the main shaft ...................... 163
17.4.37 Disassembling the countershaft ................... 163
17.4.38 Checking the transmission ........................... 164
17.4.39 Assembling the main shaft ........................... 165
17.4.40 Assembling the countershaft ........................ 166
17.4.41 Checking the starter drive ............................ 167
17.4.42 Checking the freewheel. ............................... 167
17.4.43 Removing the freewheel. .............................. 168
17.4.44 Installing the freewheel. ................................ 168
17.5 Engine assembly ............................................... 169
17.5.1 Installing the crankshaft ............................... 169
17.5.2 Installing the transmission shafts ................. 169
17.5.3 Installing the shift forks ................................ 169
17.5.4 Installing the shift drum ................................ 170
17.5.5
Installing the shift rails .................................. 170
17.5.6 Installing the left engine case ....................... 170
17.5.7 Installing the freewheel gear ......................... 171
17.5.8 Installing the primary gear ............................ 171
17.5.9 Installing the force pump .............................. 171
17.5.10 Installing the locking lever ............................ 172
17.5.11 Installing the shift drum locating unit ........... 173
coating ............................ 150
®
17.5.12 Installing the shift shaft ................................
17.5.13 Installing the starter idler gear ......................
17.5.14 Installing the torque limiter ...........................
17.5.15 Installing the outer clutch hub ......................
17.5.16 Installing the clutch discs .............................
17.5.17 Installing the clutch cover ............................
17.5.18 Installing the water pump cover ...................
17.5.19 Installing the suction pump ..........................
17.5.20 Installing the ignition pulse generator ..........
17.5.21 Installing the timing chain .............................
17.5.22 Installing the rotor .........................................
17.5.23 Installing the piston ......................................
17.5.24 Installing the cylinder head ...........................
17.5.25 Installing the camshaft .................................
17.5.26 Installing the timing chain tensioner .............
17.5.27 Checking the valve clearance ......................
17.5.28 Adjusting the valve clearance .......................
17.5.29
Installing the alternator cover .......................
17.5.30 Installing the valve cover ..............................
17.5.31 Installing the spark plug ...............................
17.5.32 Installing the starter motor ...........................
17.5.33 Installing the oil filter .....................................
17.5.34 Installing the clutch push rod .......................
17.5.35 Installing the oil screens ...............................
17.5.36 Removing the engine from the engine
assembly stand . .. . .. . .. . .. . .. . .. . .. . . .. . .. . .. . .. . .. . .. . .. . 185
CLUTCH ........................................................................ 186
18
18.1 Checking/correcting the fluid level of the
hydraulic clutch ................................................. 186
Changing the hydraulic clutch fluid .................. 186
18.2
19 WATER PUMP, COOLING SYSTEM ............................. 187
19.1 Cooling system ................................................. 187
19.2 Checking the antifreeze and coolant level ........ 187
19.3 Checking the coolant level. ............................... 188
19.4 Draining the coolant .......................................... 188
19.5 Refilling coolant ................................................ 189
20 LUBRICATION SYSTEM ............................................... 190
20.1 Oil circuit ........................................................... 190
20.2 Checking the engine oil level ............................ 190
20.3 Changing the engine oil and oil filter,
cleaning the oil screens .................................... 191
20.4 Adding engine oil .............................................. 193
20.5 Checking the engine oil pressure ..................... 193
21 IGNITION SYSTEM ........................................................ 195
21.1 Ignition coil - checking the secondary
winding .............................................................. 195
21.2 Checking the spark plug connector. ................. 195
21.3
Alternator - checking stator winding ................. 195
21.4 Removing the stator .......................................... 196
21.5 Installing the stator ........................................... 196
22 ELECTRIC STARTER ..................................................... 197
22.1 Checking the starter motor ............................... 197
23 THROTTLE VALVE BODY ............................................. 198
23.1 Adjusting the idle speed ................................... 198
23.2 Executing the initialization run .......................... 198
24 TECHNICAL DATA ........................................................ 200
24.1 Engine ............................................................... 200
24.2 Engine tolerance, wear limits ............................ 200
24.3 Engine tightening torques ................................. 201
4
173
173
173
173
174
176
177
177
177
178
178
178
180
181
181
182
182
183
183
183
184
184
184
184