AGCO Power 49 - Page 4

2.1.12 Piston, rings and pin ............................................2-14
2.1.13 Lubrication system . . . . .........................................2-16
2.1.14 Oil pump . . . . . . . ..............................................2-17
2.1.15 Thermostat ...................................................2-18
2.1.16 Turbocharger ..................................................2-19
2.2 Tightening torques ................................................2-20
2.3 Special tools ......................................................2-22
2.3.1 Cylinder block tools ..............................................2-22
2.3.2 Timing gear and flywheel housing tools ...............................2-23
2.3.3 Cylinder head and valve mechanism tools ..............................2-24
2.3.4 Crank mechanism tools ...........................................2-25
2.3.5 Coolant pump tools ..............................................2-26
2.3.6 Engine control system tools ........................................2-27
2.3.7 Maintenance and troubleshooting tools ...............................2-27
2.4 Liquid quality requirements ........................................2-29
2.4.1 Lubricating oil quality requirements ..................................2-29
2.4.2 Coolant quality requirements .......................................2-29
2.4.3 Fuel quality requirements ..........................................2-30
2.5 Terminal diagram (3-6 cylinder engines) ............................2-33
2.6 Terminal diagram (7 cylinder engines) ..............................2-34
3 Maintenance .............................................................3-1
3.1 Cylinder block ..................................................... 3-5
3.1.1 Measuring cylinder liner wear ....................................... 3-5
3.1.2 Removing cylinder liner ............................................3-5
3.1.3 Checking cylinder block ............................................3-5
3.1.4 Changing camshaft bushing (33-49 engines) .............................3-6
3.1.5 Changing camshaft bushing (66-98 engines) .............................3-6
3.1.6 Fitting plug at camshaft rear end .....................................3-8
3.1.7 Oversize bushings for camshaft ......................................3-8
3.1.8 Fitting plug at camshaft rear end (oversize bushings) .......................3-9
3.1.9 Fitting cylinder liner ...............................................3-9
3.2 Flywheel housing .................................................3-13
3.2.1 Fitting flywheel housing ...........................................3-13
3.2.2 Changing crankshaft rear oil seal ....................................3-13
3.3 Cylinder head .....................................................3-15
3.3.1 Removing cylinder head ...........................................3-15
3.3.2 Removing valves ................................................3-15
3.3.3 Checking cylinder head ...........................................3-15
3.3.4 Changing valve guides . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..........3-17
3.3.5 Machining valve seat .............................................3-17
3.3.6 Changing valve seat rings .........................................3-17
3.3.7 Grinding valves .................................................3-18
3.3.8 Fitting valves ...................................................3-19
3.3.9 Fitting cylinder head .............................................3-19
3.4 Valve mechanism .................................................3-21
3.4.1 Reconditioning valve mechanism ....................................3-21
3.4.2 Changing camshaft or camshaft gear .................................3-22
3.4.3 Adjusting valves ................................................3-23
3.5 Crankshaft ........................................................3-26
3.5.1 Removing crankshaft .............................................3-26
3.5.2 Checking crankshaft .............................................3-26
3.5.3 Changing crankshaft gears .........................................3-27
3.5.4 Fitting crankshaft ................................................3-28
3.5.5 Crankshaft hub piece .............................................3-29
3.5.6 Checking element of the rubber damper (44-49 engines) ...................3-29
Table of contents
4th Generation Engines
8370 79492