Details of the recirculation system of the diesel engine 1.9 l, 74 kW
1 - inlet pipe; 2 - sealing ring; 3 - throttle body; 4 - valve of the recirculation system; 5 – a bolt of fastening of the case throttle; 6 - branch pipe of the throttle body; 7 - gasket; 8 – a bolt of fastening of a connecting pipe; 9 - exhaust manifold; 10 – a nut of fastening of a connecting pipe; 11 - connecting pipe
Checking the recirculation valve of a diesel engine 1.9 l, 74 kW
1 - recirculation valve; 2 - throttle body; 3 - throttle valve; 4 - valve stem; 5 - vacuum pump
Valve check
1. Remove the engine cover (see subsection 2.1).
2. Disconnect the vacuum hose from the valve fitting 4 (see fig. Details of the recirculation system of the diesel engine 1.9 l, 74 kW) recycling system.
3. Loosen the clamp and disconnect the air duct from the throttle body 3.
4. Connect to valve port 1 (see fig. Checking the recirculation valve of a diesel engine 1.9 l, 74 kW) vacuum pump 5.
5. Use a pump to create a vacuum in the valve. The stem 4 of the valve should move up, and after disconnecting the vacuum pump, return to its original position. Otherwise, the valve is defective and must be replaced.
Removal and installation of elements of the recirculation system
The exhaust gas recirculation valve, mounted on the throttle body, is a non-separable structure with it. The valve can only be replaced together with the throttle body.
1. Remove the upper engine cover (see subsection 2.1).
2. Disconnect the vacuum hose from the valve fitting 4 (see fig. Details of the recirculation system of the diesel engine 1.9 l, 74 kW) recycling systems.
3. Loosen the clamp and disconnect the air duct from the throttle body 3.
4. Unscrew the two bolts 8 fastening the connecting pipe 11 to the body 3 of the throttle valve.
5. Unscrew three fastening bolts 5 and remove the throttle body 3 with valve 4.
6. To remove the connecting pipe 11 unscrew the two nuts 10 of its fastening to the exhaust manifold.
7. Replace gaskets 7 and O-ring 2 regardless of their condition.
8. Establish elements of system of recirculation of the fulfilled gases upside-down. Replace the nuts 10 of the connecting pipe to the exhaust manifold with new ones. Lubricate the exhaust manifold studs with graphite grease.
Tightening torques, Nm
Valve bolts | 10 |
Bolts of fastening of a connecting pipe to the valve | 25 |
Nuts of fastening of a connecting pipe to a final collector | 25 |