Ford Focus>> System of greasing of the engine>> General information about system of greasing of engines

Fig. 166. Elements of system of greasing of the Zetec-SE engine: 1 — the returnable oil channel; 2 — the trunk oil main; 3 — oil channels to bearings of a cranked shaft and a rod; 4 — an installation site of the oil filter; 5 — a maslopriyemny pipe; 6 — the oil channel from the oil pump to the oil filter; 7 — the oil channel to camshaft bearings in a head of the block of cylinders

Without sufficient greasing the engine would "jam" after several minutes of work. The thinnest oil film protects from a destroying friction all dynamic communications and engine mechanisms, for example, pistons and piston fingers, working surfaces of cylinders, rods and radical bearings of a cranked shaft, a detail of the gas-distributing mechanism. On fig. 166 elements of system of greasing of the Zetec-SE engine are presented.
For providing an oil film in rubbing places oil at the working engine circulates on pipelines and channels. The oil pump takes away oil from an oil case and further distributes on channels of lubricant system to greasing places. For cleaning engine oil passes through the oil filter which on the Focus car is put right after the oil pump on the trunk oil main. The oil filter clears oil of products of wear and other foreign particulates. It clears oil until its microscopic paper time will not appear is completely littered with wear products.
The oil filter is among expendables and should change periodically at each change of oil. If the oil filter is littered, engine oil via the reduktsionny valve continues to circulate in the engine, but already passing the filter. But not filtered oil accelerates wear process — first of all pistons and mirrors of the cylinders, rubbing parts of camshafts and a cranked shaft. Under pressure engine oil moves through openings and channels to the most important places of greasing — to radical and shatunny bearings of a cranked shaft, to basic necks of a camshaft.
Other places of greasing, for example pistons and a klapanny drive, are greased with a razbryzgivaniye.
Other important function of oil is heat removal from greased surfaces. On the way back oil arrives in an oil case via return channels where it is cooled.