Scania — Scania Engine Manual MT41 (EN)

Engine Ch 1 page Cooling system...................................................................................

136 View of the cooling system........................................................................................................136 Circulation..................................................................................................................................137 View of the radiator system.......................................................................................................137 Disassemble the cooling unit.....................................................................................................138 Thermostat and thermostat housing..........................................................................................140 Thermostat................................................................................................................................141 Coolant pump............................................................................................................................142 External cleaning.......................................................................................................................146 Internal cleaning........................................................................................................................146 Specifications.....................................................................................

148 General information...................................................................................................................148 Electrical system........................................................................................................................148 Cylinder head.............................................................................................................................149 Turbocharger .............................................................................................................................151 Pistons and cylinder liners.........................................................................................................151 Connecting rods.........................................................................................................................152 Flywheel and flywheel housing..................................................................................................152 Timing gear................................................................................................................................153 Lubrication system ....................................................................................................................154 Troubleshooting tables......................................................................

155 White smoke..............................................................................................................................155 White smoke, water vapour.......................................................................................................155 Black smoke when running/under load......................................................................................156 Black smoke on starting.............................................................................................................157 Blue smoke................................................................................................................................157 Fuel in the oil.............................................................................................................................157 Oil in coolant .............................................................................................................................158 Coolant/water in oil ...................................................................................................................159 Low oil pressure.........................................................................................................................160 High oil pressure (Engine warmed up)......................................................................................162 Abnormal wear (liner, piston rings, etc.)....................................................................................162 Vibration, no driven components engaged................................................................................163 Delivery pipe fractures...............................................................................................................164 External corrosion on cylinder liner............................................................................................164 Engine difficult to start...............................................................................................................164 Fluid stroke................................................................................................................................165 Knocking noise..........................................................................................................................165 High oil consumption.................................................................................................................167 High fuel consumption...............................................................................................................168 Low compression.......................................................................................................................168 Low engine output.....................................................................................................................168 Hot engine.................................................................................................................................170 Cold engine................................................................................................................................171 Coolant loss...............................................................................................................................171 Polluted coolant.........................................................................................................................171 Engine heater............................................................................................................................172 High oil temperature..................................................................................................................172 High exhaust temperature..........................................................................................................173 SHOP MANUAL MT41 - 12.2004