The firing order of the cylinders is 1-2-3-4-5-6. The cylinder block, cylinder heads and coolant pump housing are made of aluminum alloy.
The forged steel crankshaft is supported by four bearings.
The piston is cast from a special aluminum alloy and is connected to the connecting rod by a floating piston pin. The piston rings are cast iron. The first ring has a barrel-shaped outer surface, the second ring has a conical outer surface with a bevel. The oil scraper ring is composite, scraper type with a spring expander.
The cylinder head contains tent-type combustion chambers. The intake and exhaust valves are made of heat-resistant steel. The valves are driven by tappets with built-in hydraulic clearance compensators.
The cast camshaft rests on five (inlet valve shaft) or six (exhaust valve shaft) bearings and is secured with caps. The exhaust camshaft is driven from the crankshaft by a toothed belt. The belt tension is adjusted by an automatic tensioner. The intake valve shaft is driven from the exhaust valve shaft by a short single-row chain.
Table. Engine characteristics.
