Diesel Engine Specifications Model CD20 Type 4-cylinder, in-line, single overhead camshaft, water-cooled Working volume, cm/cube 1974 Cylinder diameter, mm 84,5 Piston stroke, mm 88,0 Power, hp / kW...
Toothed belt — removal and installation Camshaft drive 1. Front camshaft gear; 2. Side plate; 3. Toothed belt; 4. Intermediate roller; 5. Mounting bolt, 7 Nm (insert with normal protective agent); 6. Upper...
Replacing the cylinder head gasket Cylinder head 1. Cylinder head cover gasket (always replace); 2. Bearing sleeve; 3. Rubber bushing; 4. Cover of main bearings; 5. Rear camshaft oil seal (always...
Valves — removal and installation Removing 1. Remove the cylinder head. 2. Remove the distributor. Attention! If old parts of the distribution mechanism will be installed, they should be installed in the...
Replacing valve stem seals Excessive oil consumption can be caused by worn valve stem caps. The valve stem caps can be removed without removing the cylinder head and require a special tool. If...
Checking the valve guides When repairing a cylinder head with leaky valves, it is not enough to process or replace the valves and seats. In addition, the valve guides should be checked for wear....
Valve seat lapping The machined seat and new valve should be lapped together to ensure maximum sealing. Valves should only be lapped with fine grinding paste. For the necessary rotation, a...
Cylinder head/valve machining Valve seats with signs of wear and scorching can be machined while maintaining corrective angles and seat width. Otherwise, the cylinder head must be replaced. Always...
Checking and adjusting valve clearances To compensate for various thermal expansions, there must be a gap in the distribution mechanism. If the gap is too small, the valve timing changes, compression is worse,...
Cylinder compression check Compression check allows you to judge the condition of the engine. Namely, when checking, you can establish whether valves and pistons are in order or worn out (piston...
Engine malfunctions Cause Elimination method Prechannel system defect Check the prechannel system for defect diagnosis Nozzle defect Check injectors Injection pump defect Replace injection...
Engine lubrication system — general information Engine oil viscosity Viscosity refers to the degree of fluidity of engine oil. The fluidity of oil varies with temperature. As the temperature increases, it liquefies....
Oil Circuit — Pressure Check Attention! Diesel engines are additionally equipped with oil nozzles, which spray the oil stream onto the piston crowns in order to cool them. Oil pressure check Engine...
Removal and installation of the oil pan The oil pan is sealed with a common sealant such as Loctite. Attention! Don't apply too much sealant, be extra careful near the bolt holes. The parts must be assembled...
Diesel fuel injection device Placement of elements of the heating preheating system 1. Glow plug; 2. Coolant temperature sensor; 3. Left front wall in the driver's footwell; 4. Glow timer; 5....
Glow plugs — removal and installation Removing 1. Unscrew the connecting cable and current bar. 2. Remove the glow plug. Attention! After loosening, carefully remove the glow plug by hand, as the ceramic...
Diesel engine power system Elements of the power system 1. Hand brake; 2. Fuel filter; 3. Drain valve; 4. injection pump; 5. Bypass valve; 6. Plug-in connection for the fuel cut-off valve; 7. Cold...
Checking and replacing the fuel cut-off valve The fuel shut-off valve on the injection pump opens the fuel supply when the ignition is turned on. It should be checked if the engine does not start or continues to run...
Idling speed and maximum number of revolutions Checking/adjusting idle speed and maximum speed Since diesel engines do not have an ignition system, a special photovoltaic tachometer is required. 1. Warm up the engine...
Nozzles — removal and installation Faulty injectors can cause severe engine knock and damage to bearings. In case of such malfunctions, leave the engine idling and loosen the union nuts of the injectors...
High pressure fuel pump start The moment when the injection pump starts to feed must be adjusted after tensioning, removing or replacing the timing belt, as well as after loosening the threaded...
Diesel operation in winter Fuel additives are not used in a diesel engine, even in winter. When the ambient temperature drops, the fluidity of diesel fuel decreases due to paraffin deposits....
Technical data of the diesel power system Engine 2.0 l engine's type CD20 Number of turns of idling, rpm: - manual gearbox 750 ± 50 Maximum number of revolutions, rpm: - manual gearbox 5400 – 5600 – automatic...
Useful tips for diesel car owners If you are thinking about switching to diesel, but do not know how to take care of it yourself, then we will say right away that keeping a diesel in good condition is no...