Table of contents: Small middle pipe of cooling system… ↓ Right middle pipe of the cooling… ↓
Small middle pipe of cooling system of petrol engine 2.8 l
Removal
Drain the coolant.
Take it off intake manifold.
Fig. 7–9. Cooling system pipes of a 2.8 l petrol engine: 1 - small middle 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 – nipple, 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
Fig. 7–10. Small middle pipe of the cooling system of the 2.8 l petrol engine: 1 – bolt, 10 N·m; 2 – clamp
Loosen the clamp and remove the hose from the rear of the middle coolant pipe (Fig. 7–10).
Unscrew bolt 1 securing the middle pipe of the cooling system to the cylinder block.
Remove the middle coolant pipe from the cylinder block opening and remove it.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Clean the sealing ring seat before installation.
When installing, it is necessary to use a new sealing ring, having previously lubricated it with anti-corrosion agent G12.
Slide the pipe into the cylinder block hole and secure it with a bolt.
Install intake manifold.
Fill with coolant.
Right middle pipe of the cooling system of the 2.8 L petrol engine
Removal
Drain the coolant.
Take it off intake manifold.
Fig. 7–11. Right middle pipe of the cooling system of a 2.8 l petrol engine: 1, 2 – clamps; 3 – bolt, 10 Nm
Loosen the clamps and remove the hoses from the middle pipe of the cooling system (Fig. 7–11).
Unscrew bolt 3 securing the cooling system pipe 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 from the middle pipe that goes to the expansion tank.
Fig. 7–12. Location of the electrical connector for the coolant temperature sensor of the 2.8 L gasoline engine.
Disconnect the electrical connector from the coolant temperature sensor (Fig. 7–12).
Release the coolant system middle pipe clamps and move them to the side.
Fig. 7–13. Location of the flange mounting bolts for the middle pipe of the cooling system of a 2.8 L gasoline engine
Unscrew the bolts (see Fig. 7–13) securing the flanges of the middle pipe, remove the middle pipe of the cooling system from the hole in the cylinder block and remove it.
Fig. 7–14. Elements of the cooling system of 3.7 and 4.2 l gasoline engines: 1 – rear section of the cooling system pipe; 2 – from the heating system, with a release valve; 3 – to the heating system, with a release valve; 4 – return hose; 5 – expansion tank cap; 6 – expansion tank; 7 – filling hose; 8 – thermostat; 9 – radiator; 10 – Bracket for coolant hoses; 11 – coolant pipe; 12 – oil heat exchanger; 13 – Coolant pipe; 14 – oil heat exchanger coolant pipe
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
Clean the sealing ring seat before installation.
When installing, it is necessary to use a new sealing ring, having previously lubricated it with anti-corrosion agent G12.
Slide the pipe into the cylinder block hole and secure it with a bolt.
Install intake manifold.
Fill with coolant.