Engine cross section: 1 - oil pan drain plug; 2 - engine oil pan 3 - crankshaft: 4 - oil filter: 5 - catalytic collector; 6 - coolant pump: 7 - piston; 8 - oxygen concentration sensor: 9 - intake manifold and exhaust manifold gasket; 10 - inlet manifold; 11 - nozzle; 12 - fuel rail diagnostic connector; 13 - receiver; 14 - bracket for fastening the tip of the cable sheath; 15 - cylinder head cover; 16 - camshaft bearing housing; 17 - camshaft; 18 - crankcase ventilation hose; 19 - valve tappet; 20 - cylinder head; 21 - bolt securing the head to the cylinder block; 22 - valve; 23 - candle; 24 - cylinder head gasket; 25 - upper compression ring; 26 - lower compression ring; 27 - oil scraper ring; 28 - piston pin; 29 - nipple for installing oil level indicator; 30 - connecting rod; 31 - flywheel; 32 - cylinder block; 33 - Oil pan gasket; 34 - oil level indicator; 35 - oil intake.
Engines are petrol, four-stroke, four-cylinder in-line with overhead camshaft and liquid cooling.
Eight-valve engines with a working volume of 1.6 liters are created on the basis of the VAZ-2111 engine. They have a cylinder block increased in height by 2.3 mm and an original crankshaft. The cylinder diameter remains the same - 82 mm, the piston stroke is increased to 75.6 mm, as opposed to 71 mm in the base engine. Oil nozzles are installed in the main bearing supports.
The cylinder head contains one camshaft, eight valves and eight valve lifters with adjusting washers. The camshaft supports are made in the head. Two camshaft bearing housings are bolted to the upper plane of the head. The gas distribution mechanism is covered from above by a cover with an oil filler neck.
The camshaft and coolant pump are driven by a toothed belt from a toothed pulley mounted on the engine crankshaft. The belt tension and direction of its movement along the pulleys is achieved by a tension roller.
The cylinder block is cast iron, with cylinders machined into it. The internal cavities of the block for the coolant are formed during its casting, and the oil supply channels are made by drilling. At the bottom of the cylinder block there are five crankshaft main bearing supports. The main bearing caps are not interchangeable and are marked with the bearing serial number, starting from the crankshaft pulley. In the cover of the second main bearing there are two threaded holes for the oil intake mounting bolts. Steel-aluminum main bearing shells are installed in the supports and covers. On both sides of the support of the third main bearing there are sockets for installing thrust half rings that prevent axial movement of the crankshaft. The front half-ring is made of steel and aluminum, the rear half-ring is made of metal and ceramic, yellow on both sides.
The pistons are cast from aluminum alloy. Each piston is equipped with two compression rings and one oil scraper ring. The lower compression ring is of the scraper type with a groove and a sharp edge on the lower plane. A spring expander is installed inside the oil scraper ring.
Fingers - floating type (are fixed in the pistons by two spring retaining rings) or fixed into the upper connecting rod head using the "hot fit" method.
A steel-bronze bushing is pressed into the upper head of the connecting rod. The connecting rod caps are not interchangeable and are installed on the connecting rod in only one position.
The oil pan is attached to the cylinder block from below.
The engine lubrication system is combined - under pressure with splashing. The oil pump is a gear type with internal engagement and is driven from the front end of the crankshaft. Through the oil intake, the pump takes oil from the oil pan and pumps it under pressure into the channels of the engine lubrication system. To control the amount of oil in the pan, a dipstick is installed - a level indicator. The oil filter is full-flow, with a paper filter element and a check valve that prevents oil from leaking from the lubrication system channels into the oil pan after the engine has stopped.
Oil nozzles are installed in the main bearing supports. Oil from the nozzles is supplied to the inner surfaces of the pistons to cool them. Some of the oil gets onto the upper heads of the connecting rods and flows through the conical holes made in them onto the piston pins, lubricating them.
Channels are drilled in the body of the crankshaft. Through them, oil flows to the connecting rod journals, lubricating them. Oil enters the crankshaft channels from the cylinder block through openings in the main bearing shells and main journals. The technological openings of the channels are closed with stamped steel plugs.
On the left side of the block there is a cavity for installing a coolant pump with a lug for installing an oil filter.
The generator is driven by a poly-V belt from the engine crankshaft pulley.
The intake manifold receiver is made of plastic. The exhaust manifold is steel and is combined with a catalytic converter. Its connection with the head is sealed with a two-layer metal gasket.
Engines 11186 and 21116 differ from model 11183 in their lightweight connecting rod and piston group.
Short skirt pistons.
All piston rings are thinner than on previous engine models, which is designed to reduce internal engine friction losses.
The connecting rods are "split"*.
* The connecting rod and its cover are first manufactured as a single unit (non-detachable) detail. After making holes in the upper and lower heads of the connecting rod, the lower head is "split" using a special method. This technology allows for a perfect connection between the cover and the connecting rod.
(The source is located on the website LADAman.ru)