Volvo Penta Workshop Manual Engine MD2010, MD2020, MD2030, MD2040 Workshop Manual Marine engines MD201OA/B/C MD202OA/B/C MD203OA/B/C MD204OA/B/C Note! The data given in this Workshop Manual refers in general to engines in both A, B and C versions unless otherwise stated. 1 Contents Technical data Repair instructions 9 Injection pump Injection pump 54 Wear tolerances 15 Adjustment of injection angle 55 Tightening torque 17 Adjustment of speed 57 Feed pump 58 Special tools 18 Fuel filter 59 Bleeding of fuel system 59 Injector 60 Presentation Checking of injector 61 Description of engine 19 Engine body Cooling system Description 62 Description 24 Repair instructions Repair instructions: Refrigerants 63 Cylinder head 25 Checking of refrigerant level 64 Valves. valve mechanism ......................................... 28 Cleaning 65 Cylinder block, pistons. connecting rods 34 Circulation pump 66 Timing gears 40 Sea water pump 66 Camshaft 44 Replacing the thermostat 67 Crank mechanism 46 Checking the thermostat 67 Lubricating system Description Electrical system 51 Description 68 Repair instructions Important info 70 Oil pump 52 Starting with auxiliary battery 71 Replacing the oil filter 52 Troubleshooting, glow plug, charging system 72 Cleaning the oil channels ......................................... 52 Alternator 74 Starter motor 76 Electrical components 78 Fuel system Wiring diagram 80 Description 53 Extra equipment 87