Suction motor with a displacement of 1.9 liters The engine compartment of a 47 kW suction motor is shown here: 1 - fuel filter 2 - oil filler neck 3 - suction manifold 4 - pressure regulator valve of the engine crankcase...
Turbodiesel with a displacement of 1.9 liters The following parts are located in the engine compartment of a 55 kW turbodiesel: 1 - fuel filter 2 - oil filler neck 3 - suction manifold 4 - pressure regulator valve of the...
Diesel engine. general information Two diesel engines are available for the Golf/Vento diesel models. Both engines comply with stringent regulations regarding the content of harmful substances in exhaust gases and...
Diesel principle Intake stroke: In contrast to a petrol engine, a diesel engine draws in only clean air during this stroke. A gasoline engine, on the other hand, sucks the already prepared...
Cylinder block The diesel cylinder block is made of cast iron. In its lower part is the crankshaft; top working cylinders (four in a row). Around them are channels for coolant, which are also...
Crankshaft The task of the crankshaft is to convert the translational motion of the pistons in the cylinders into rotational motion. Connecting rods leading to the cylinders of the...
Pistons The pistons are made of light metal and have a steel insert that reduces the thermal expansion of the piston. The pistons of diesel engines have as a feature on the upper plane a...
Cylinders Cylinders, as already mentioned, are part of the cylinder block. The four cylinder bores are the guides for the pistons and are ground in a special way. The walls do not have to...
Cylinder head gasket It serves to ensure that the high pressure of the gases in the combustion chamber does not affect the oil and coolant channels in the cylinder head. Sectional view of valve...
Cylinder head and camshaft For reasons of lightness and for better thermal conductivity, the cylinder head is cast from light metal. The valve seats are installed when the cylinder head is heated, so that...
Toothed belt The camshaft is driven by a toothed belt from the crankshaft. This timing belt with steel wire inserts is of great importance for diesel engine. The engine's small combustion...
Hydraulic pushers Diesel engines are equipped with so-called "cup" pushers, in which a hydraulic valve clearance compensator is built. This device eliminates the need for valve clearance control....
Lubrication system In the engine, a number of bearings and rubbing pairs require lubrication. Engine oil is pumped there under pressure from the oil pump. The pump sucks oil through the oil strainer...
Crankcase ventilation Engine crankcase ventilation avoids overpressure in the crankcase (due to pressure loss during combustion). Gases are supplied to the air filter housing and from there they enter...
Checking the engine for oil loss Unwanted sources of oil are most likely to be found on a diesel engine in the following places: Sealing ring (stuffing box) crankshaft at the flywheel, oil protrudes between the...
Running in a new engine Cylinder walls, as well as pistons with piston rings in the initial state, have microscopic roughness on their surfaces. After the initial run, these small irregularities are...
Engine life Diesel engines have a mileage of at least 100,000 to 150,000 km. Vehicles that, during operation, have a small number of cold starts and. as a rule, they are operated at a low...
Compression pressure measurement Compression measurement in the engine cylinders will give an answer to the question of whether the valves and piston rings still seal well. First of all, the ease of starting a...
Engine Troubleshooting Low pressure Uniformly low compression pressure is certainly not an alarm; the reason may be the difference in the measurements of different instruments. It is doubtful when the...
Diagnostics of malfunctions of a gear belt The timing belt is of great importance for a diesel engine, if the belt breaks or slips one or more teeth on the pulley, then severe engine damage inevitably occurs. because the...
Work on the cylinder head Most work on the cylinder head requires a torque wrench. To completely remove the head, an additional long wrench is required to unscrew the bolts with an internal polyhedron T55....
Bearing damage A knocking sound from the engine compartment, which becomes louder with warmer oil, is an indication of bearing damage. Almost always this is a defect in the connecting rod plain...
Removal and installation of the engine 1 - right engine console 2 - casing (not installed on our models) 3 - gearbox support 4 - rubber-metal support 5 - left gearbox console 6 - rubber-metal support 7 - aggregate beam...
Turbocharged diesel engine Diesel engines have been using internal mixing in the swirl chamber and combustion chamber for a relatively long time (compared to petrol engine). The maximum number of...
Boost pressure regulator The chosen design of the turbocharger has the good property that already at a relatively low speed the charge air enters the cylinders, which means that at a high speed there will...
Removing the turbo 1 - turbocharging shaft 2 - turbine wheel on the exhaust side 3 - oil supply channel 4 - turbine wheel on the suction side Cleanliness must be especially observed when working on...
Troubleshooting If the turbodiesel engine gives really low power or maximum power is not reached, then the cause may be a defective turbo, what possible faults can be taken into account, we will...