The crankshaft of the engine rests on five bearings, and the central bearing has a thrust element to prevent axial mixing of the shaft. Aluminum alloy pistons have three piston rings: two compression rings and one oil scraper.
The camshaft on engines with one such shaft is driven from the crankshaft by a toothed belt made of composite rubberized material. Each cylinder has two valves (inlet and outlet), which are actuated through valve rockers using hydraulic pushers with automatic clearance adjustment.
On engines with two camshafts, they are driven from the crankshaft by a single toothed belt made of rubberized composite material. Each cylinder has four valves (two intake and two exhaust), driven by camshafts using hydraulic pushers with automatic clearance adjustment. One camshaft drives the intake valves, the other drives the exhaust valves.
The gear oil pump is located at the front of the cylinder block and is driven by the crankshaft. A full-flow oil filter is installed, and dual cam models are equipped with an oil cooler.
Distributor (if installed) driven by a camshaft. On a carburetor engine, the fuel pump is rotated by a camshaft. The cooling system pump is located at the front of the cylinder block and is driven by the timing belt.
Without removing the engine from the car, you can perform the following operations:
- Removal and installation of the cylinder head.
- Removal and installation of the timing belt and sprockets.
- Removal and installation of a camshaft.
- Removal and installation of the crankcase.
- Removal and installation of bearings of a big head of a rod and piston.
- Removal and installation of the oil pump.
- Replacing engine mounts.
- Removal and installation of the flywheel.
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