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13.5. Connecting pipes of the cooling system

Small average pipe of the cooling system of the petrol engine of 2,8 l
Removal
Merge cooling liquid.
Remove an inlet collector.

Fig. 7-9. Pipes of the cooling system of the petrol engine of 2,8 l: 1 – small average pipe; 2 – from the heat exchanger; 3 – bolt, 10 N · m; 4 - to the heat exchanger; 5 – bolt, 10 N · m; 6 – big average pipe; 7 – sealing ring; 8 – union, 15 N · m; 9 – to a broad tank; 10 – a bolt, 10 N · m, 11 – to an average pipe; 12 – sealing rings; 13 – sensor of temperature of cooling liquid; 14, 15, 16 – sealing rings; 17 – bolt, 10 N · m



Fig. 7-10. Small average pipe of the cooling system of the petrol engine of 2,8 l: 1 – bolt, 10 N · m; 2 – collar



Weaken a collar and remove a hose from the back party of an average pipe of the cooling system (fig. 7-10).
Unscrew a bolt of 1 fastening of an average pipe of the cooling system to the block of cylinders.
Take out an average pipe of the cooling system from an opening of the block of cylinders and remove it.

Installation
Installation is carried out to the sequences, the return to removal, taking into account the following.
Before installation clear a nest for a sealing ring.
At installation it is necessary to use a new sealing ring, previously having greased it with G12 rust-preventing agent.
Move a pipe into an opening of the block of cylinders and fix it by a bolt.
Establish an inlet collector.
Fill in cooling liquid.

Right average pipe of the cooling system of the petrol engine of 2,8 l
Removal
Merge cooling liquid.
Remove an inlet collector.

Fig. 7-11. Right average pipe of the cooling system of the petrol engine of 2,8 l: 1, 2 – collars; 3 – bolt, 10 N · m



Weaken collars and remove hoses from an average pipe of the cooling system (fig. 7-11).
Unscrew a bolt 3 fastenings of a pipe of the cooling system to the block of cylinders.
Weaken collars and remove the hoses going to the heat exchanger from an average pipe.
Weaken a collar and remove the hose going to a broad tank from an average pipe.

Fig. 7-12. Arrangement of the electric socket of the sensor of temperature of cooling liquid of the petrol engine of 2,8 l.



Disconnect the electric socket from the sensor of temperature of cooling liquid (fig. 7-12).
Release clips of an average pipe of the cooling system and move them aside.

Fig. 7-13. Arrangement of bolts of fastening of flanges of an average pipe of the cooling system of the petrol engine of 2,8 l



Unscrew bolts (see fig. 7-13) fastenings of flanges of an average pipe, take out an average pipe of the cooling system from an opening of the block of cylinders and remove it.

Fig. 7-14. Elements of the cooling system of petrol engines 3,7 and 4,2 of l: 1 – back section of a pipe of the cooling system; 2 – from system of heating, with the final valve; 3 – to system of heating, with the final valve; 4 – returnable hose; 5 – cover of a broad tank; 6 – broad tank; 7 – filling hose; 8 – thermostat; 9 – radiator; 10 – an arm for hoses of cooling liquid; 11 pipe of cooling liquid; 12 – oil heat exchanger; 13 – pipe of cooling liquid; 14 – pipe of cooling liquid of the oil heat exchanger




Installation
Installation is carried out to the sequences, the return to removal, taking into account the following.
Before installation clear a nest for a sealing ring.
At installation it is necessary to use a new sealing ring, previously having greased it with G12 rust-preventing agent.
Move a pipe into an opening of the block of cylinders and fix it by a bolt.
Establish an inlet collector.
Fill in cooling liquid.