2.8L Gasoline Engine Cooling System Small Medium Pipe
Withdrawal
Drain the coolant.
Remove intake manifold.
Pic. 7–9. Pipes of the cooling system of the gasoline engine 2.8 l: 1 - small medium pipe; 2 - from the heat exchanger; 3 - bolt, 10 Nm; 4 - to the heat exchanger; 5 - bolt, 10 Nm; 6 - large middle pipe; 7 - sealing ring; 8 - fitting, 15 Nm; 9 - to the expansion tank; 10 - bolt, 10 Nm, 11 - to the middle pipe; 12 - sealing rings; 13 - coolant temperature sensor; 14, 15, 16 - sealing rings; 17 - bolt, 10 Nm
Pic. 7–10. Small medium pipe of the gasoline engine cooling system 2.8 l: 1 - bolt, 10 Nm; 2 - collar
Loosen the clamp and remove the hose from the rear side of the middle pipe of the cooling system (pic. 7–10).
Unscrew the bolt 1 fastening the middle pipe of the cooling system to the cylinder block.
Take out an average pipe of system of cooling from an aperture of the block of cylinders and remove it.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Clean the O-ring seat before installation.
When installing, a new O-ring must be used after lubricating it with G12 anti-corrosion agent.
Slide the pipe into the bore of the cylinder block and secure it with the bolt.
Install intake manifold.
Fill with coolant.
Right middle pipe of the 2.8L gasoline engine cooling system
Withdrawal
Drain the coolant.
Remove intake manifold.
Pic. 7–11. The right middle pipe of the cooling system of the gasoline engine 2.8 l: 1, 2 - clamps; 3 - bolt, 10 Nm
Loosen the clamps and remove the hoses from the middle pipe of the cooling system (pic. 7–11).
Unscrew the bolt 3 fastening the pipe of the cooling system to the cylinder block.
Loosen the clamps and remove the hoses leading to the heat exchanger from the middle pipe.
Loosen the clamp and remove the hose leading to the expansion tank from the middle pipe.
Pic. 7–12. Location of the electrical connector for the coolant temperature sensor of the 2.8L gasoline engine.
Disconnect the electrical connector from the coolant temperature sensor (pic. 7–12).
Loosen the clamps of the middle pipe of the cooling system and move them to the side.
Pic. 7–13. The location of the bolts for fastening the flanges of the middle pipe of the cooling system of the gasoline engine 2.8 l
unscrew the bolts (see fig. 7–13) fastening the flanges of the middle pipe, remove the middle pipe of the cooling system from the hole in the cylinder block and remove it.
Pic. 7–14. Elements of the cooling system of gasoline engines 3.7 and 4.2 liters: 1 - rear section of the pipe of the cooling system; 2 - from the heating system, with an exhaust valve; 3 - to the heating system, with an exhaust valve; 4 - return hose; 5 – a cover of a broad tank; 6 - expansion tank; 7 - filling hose; 8 - thermostat; 9 - radiator; 10 - bracket for coolant hoses; 11– coolant pipe; 12 - oil heat exchanger; 13 – a pipe of a cooling liquid; 14 – a pipe of a cooling liquid of the oil heat exchanger
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Clean the O-ring seat before installation.
When installing, a new O-ring must be used after lubricating it with G12 anti-corrosion agent.
Slide the pipe into the bore of the cylinder block and secure it with the bolt.
Install intake manifold.
Fill with coolant.
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