1.3.9.1 Oil pressure regulating valve
The oil pressure regulating valve is close to the oil
filter. The oil pressure regulating valve keeps the
oil pressure constant, independent of the engine
speed.
At working speed the oil pressure is 2,5 to 5 bar
depending on the temperature and the quality of
lubricating oil. At idling the pressure is 1,5 bar
minimum.
Fig. 9
1.3.9.2 Oil filter and oil cooler in 33-74 engines
(1) Oil cooler
(2) Oil filter
(3) Coolant drain plug
(4) Oil pressure regulating valve
The oil filter is of main flow type. It has a
replaceable cartridge mounted on the left side of
the engine. At the bottom of the oil filter cartridge
there is a by-pass valve for cold start or possible
clogging of the oil filter.
The engine has an oil cooler, which is between the
cylinder block and the oil filter. All oil that circulates
through the filter also goes through the oil cooler
and is cooled by the engine coolant circulating in
the oil cooler.
Fig. 10
1.3.9.3 Oil filter and oil cooler in 84-98 engines
(1) Oil filter
(2) Oil cooler
(3) Coolant drain plug
(4) Oil pressure regulating valve
The oil filter is of main flow type. It has a
replaceable cartridge mounted on the right side of
the engine. At the bottom of the oil filter cartridge
there is a by-pass valve for cold start or possible
clogging of the oil filter.
The engine is equipped with an plate type oil
cooler, that is situated on the right side of the
engine above the oil filter. All oil that circulates
through the filter also goes through the oil cooler
and is cooled by the engine coolant circulating in
the oil cooler. The oil cooler is of main flow type.
Fig. 11
1. Introduction
4th Generation Engines 1-17
8370 79492