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11
10
9
8
7
Fig. 27. Arrangement of channels in the service module:
1 – cooling liquid feed pipe from the vehicle radiator; 2 – suction cavity; 3 –
thermostat; 4 – oil outlet channel from the L/O HE element; 5 – L/O HE
element oil feed channel; 6 – oil filter; 7 – clean oil outlet from the oil filter; 8
– oil feed channel to the oil filter; 9, 13 – L/O HE bypass channels; 10, 11 –
oil feed channel from the block; 12 – service module housing; 13 – water
pump inlet pipe;14 – water pump volute; 15 – water pump housing; 16 – water
pump pulley; 17 – water pump drive spindle; 18 – drain hole A – end seal (see
Fig. 25);B – L/O HE safety valve (see Fig. 27a)
In the service module the L/O HE is open, but when the service
module is mounted onto the engine, the heat-transferring element
becomes confined in the closed cavity formed by the module and the
cylinder block wall.
The L/O HE element receives the whole volume of the cooling
liquid supplied by the water pump. After the L/O HE, the cooling
liquid goes to the cylinder head through 2 channels in the block and
cylinder head.
86
12
6
Б
13
5
4
3
2
1
14
15
16
17
A
18
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