Engines — general information A tidbit for technology fans: the five-valve cylinder head of engine models with an engine displacement of 1.8 liters. With a chain (1) exhaust camshaft (4)...
Power steps Engine codes ADP ADR AEB ABC AAH Number of cylinders 4 4 4 6 6 Power, kWt 74 92 110 110 128 At rpm 5300 5800 5700 5750 5500 Displacement cm 3 1559 1781 1781...
Engine signs In the five-valve cylinder head of the engine with a displacement of 1.8 liters, the sprocket (4) exhaust camshaft transmits its speed to a double-row chain...
Engine technology, maintenance and repair Below, along with some explanations of the operation of the engine, you will find a list of maintenance and repair work. You can carry out the repairs...
Lubrication system Labyrinth: the basic idea behind the new three-section crankcase designed for the Audi A4. Here is a cross section of an oil cooler (2), in which engine oil is...
Exhaust crankcase ventilation The engine passes 50–70 liters of exhaust gases per minute through the piston rings and into the crankcase. Pressure is created, which must have an outlet from...
Visual control of the engine Order of execution 1. Inspect the engine from top to bottom. 2. Slightly oily spots are nothing to worry about - all engines are slightly oily from time to...
Engine life Audi engines easily overcome the border of 100,000 km. But whether they last twice that long depends largely on your driving style and the maintenance you give...
Rated and maximum speed Any internal combustion engine develops maximum power at a certain speed, the so-called nominal speed. Increasing the RPM will not add power to the engine. But...
Speed limit Our engines can withstand quite high speeds. The valves are driven by poppets located directly above the control valve (And) shaft (ami). In this case,...
Compression pressure measurement To measure, you need to warm up the engine. Piston ring tightness increases when the oil is hot. In addition, you need to stop the supply of fuel to the...
Help with engine problems The crankshaft of a six-cylinder engine is rotated by the central bolt of the crankshaft belt pulley. As a tool, you need to use an overhead wrench with an...
Hydraulic pushers What are hydraulic lifters used for? Due to the heating of the engine, individual parts of the valve mechanisms expand and lengthen. Therefore, in order for...
Timing belt work The toothed belt on a 6-cylinder engine is correctly tensioned if it can be rotated no more than 90°between the toothed belt drive gear and the upper guide...
Cylinder Head Gasket Faults identification mark Reasons / features A. Coolant level keeps dropping slowly Coolant enters the combustion chambers in very small quantities. This phenomenon...
Mounting and dismantling of the cylinder head The cylinder head bolts must be tightened in the numbered sequence. The first shown six-cylinder engine (the arrow shows the direction of movement) and the...
Mounting and dismantling of the engine In the workshop, the engine is dismantled using such a lifting device. It is for this purpose that the cylinder head has mounting lugs, to which, of course,...