1 - cylinder head oil channel
2 - main oil line
3 - oil jet for piston cooling
4 - main oil filter
5 - oil refrigerator (if available)
All FORD SCORPIO engines have a so-called circulating pressure lubrication system. The oil pump sucks oil from the oil pan through the oil receiver and forces it into the main oil filter. On the discharge side of the oil pump there is a pressure reducing valve, which opens when the oil pressure is too high, and some of the oil can flow into the oil pan.
The purified oil flows through the central opening of the filter element into the main oil line. The main oil line contains a hydraulic switch or oil pressure sensor, which warns the driver of too low oil pressure via a warning light or pressure indicator on the instrument panel. If the oil filter has insufficient capacity (if it is dirty), the bypass valve directs the uncleaned oil directly into the main line.
The main oil line has channels for lubricating the crankshaft bearings. Oil is directed through inclined holes in the crankshaft to the connecting rod bearings.
At the same time, oil is supplied through vertical pipelines to the cylinder head and, depending on the engine, is directed there to lubricate the camshaft bearings, pressure levers, hydraulic tappets and valve stem ends.
[The text is available on the specified website info portal: FordBook.ru]