Features of the lubrication system device

The lubrication system works under pressure and includes a gear-type oil pump, an oil filter connected in series with the main engine oil line, and an oil-water heat exchanger. The lubrication system of turbocharged diesel engines also includes an oil cooler. Oil pump driven by countershaft gear.

On engines «1Y», «RA», «SB» The oil pressure sensor is installed in the cylinder block and measures the oil pressure in the main oil line. Engines «AAZ», «1Z» and «AFN» have two oil pressure sensors, which are installed on the oil filter cover.

Set pressure on vehicles with engines «1U», «RA» and «SB»:

• without turbocharger 0.15-0.45 kgf/cm²;
• with turbocharger 0.75-1.05 kgf/cm²;

On vehicles with engines «AAZ» and «1Z»:

• sensor with brown block 0.3 kgf/cm²;
• sensor with gray pad 0.9 kgf/cm².

Note. On the engine «AFN» blue sensors are installed (0.25 kgf/cm²) and with a gray block (0.9 kgf/cm²).

Details of the lubrication system are shown in fig. 3-25.



Oil filter with replaceable filter element brand Mann W 940/25. Change interval: every oil change.