Diesel engines G9T vehicle Renault Espace 3

Technical specifications
Technical data Engine type - G9T 718 Cylinder diameter, mm — 87 Piston stroke, mm — 92 Engine displacement, cm³ — 2188 Compression ratio - 18/1 Fuel system Catalytic converter - C93 Toxicity standard - Euro 2000 Maximum...

Auxiliary equipment drive belt
Removal Place the vehicle on a two-post lift. Disconnect the cable from the negative battery terminal. Fig. 4.1. Loosening the auxiliary drive belt tension Remove the right front wheel, the front right wheel arch...

Gas distribution mechanism drive belt
Removal When replacing the timing belt, you must use the following special tools: support for power unit Mot. 1390; top Dead Center Lock Mot. 1536; device for adjusting and fixing the intake camshaft Mot. 1534; device...

Removal and installation of the G9T engine
Removal When removing the power unit, it is necessary to use the following special tools: - universal support Mot. 1390; - device for unlocking quick-release connections of the air conditioning system Mot 1410; - key...

Turbocharger — removal and installation
Fig. 4.31. Turbocharger fastening and connection elements on the G9T engine: 1 - oil supply line to the turbocharger; 2 - nut, 27 Nm; 3 - nipple; 4 - nipple; 5 - fuel pressure sensor in the distribution line Removal and...

Engine stop block housing
The engine stop unit, controlled by the fuel injection system control unit, is equipped with a throttle valve at the intake air inlet, which closes when the ignition is switched off, thereby ensuring a rapid engine...

Exhaust manifold
Removal Removal the exhaust manifold requires removing the power unit from the vehicle, as well as removing the turbocharger. Installation Tighten the exhaust manifold mounting nuts in the sequence shown in Figure 4.39....

Intake manifold
Removal Removal the intake manifold-cylinder head cover requires removing the injectors and high-pressure fuel supply lines. Install the Mol 1390 universal support under the power unit, placing only its right shoes...

Pendulum suspension supports
The right pendulum support has a rear suspension travel limiter rod. When removing the upper mount cover, limiter rod or bracket secured to the suspension mount cup, follow the tightening order of the threaded...

Fuel system
High pressure direct fuel injection system "Common Rail" provides a metered supply of fuel at any given moment in time The system includes: low pressure fuel pump (1. Fig. 4.43). located between the intake tract and the...

Strategy for coordinating the operation of the injection system and air conditioning
The injection system control unit and the air conditioning control unit are functionally connected to each other. The "AC OUT" signal from the injection system control unit sends a signal to the air conditioning system...

Correction of the crankshaft speed at idle speed
Correction of the crankshaft speed at idle depending on the coolant temperature Correction of the crankshaft speed at idle speed depending on the coolant temperature is shown in Figure 4.47. Fig. 4.47. Dependence of the...

Control lamps
On vehicles equipped with a high-pressure fuel injection system, there are two injection indicator lamps, one of which lights up during the preheating phase, and the other one - in case of a malfunction of the injection...

Engine pre-heating and post-heating system
The pre-heating and post-heating systems are controlled by the control unit. Pre-heating when ignition is turned on Pre-heating is carried out in two phases: a) variable preheating - depends on the coolant temperature...

Glow plugs
Removal of glow plugs is carried out without disassembling the high-pressure fuel system Removal Disconnect the cable from the negative battery terminal. Disconnect the electrical connectors from the glow plugs (Fig....

Electromagnetic thermal valves
All four thermostatic valves are installed on the thermostat block under the manifold at the battery level. The thermostatic valve system is designed to heat the coolant. When the engine is running, 12 V is supplied to...

Fuel filter
The fuel filter is installed in a non-separable housing and is located in the engine compartment. The filter housing contains a control valve that limits the amount of diesel fuel supplied to the engine. It is not...

High pressure fuel pump
It is not recommended to disassemble the high pressure fuel pump. Caution: Before carrying out any work on the fuel rail, connect the diagnostic tool to the injection system control unit and ensure that the fuel rail is...

Injectors — removal and installation
Attention Before carrying out any work on the fuel rail, connect the diagnostic tool, establish communication with the injection system control unit and ensure that the fuel rail is not under pressure. Take precautions...

Fuel distribution line protection
The ten-piece fuel rail protectors isolate the high-pressure injection system from the engine compartment. For the system to function properly, it must consist of the following elements: - two porous gaskets (1, Fig....

Fuel pressure regulator
Removal Disconnect the cable from the negative battery terminal. Disconnect the connector from the fuel pressure regulator (Fig. 4.69). Fig. 4.69. Location of the fuel pressure regulator (1) and the connection point of...

Checking oil pressure
Checking the oil pressure should be done on a warm engine (-80°C). Connect a pressure gauge instead of the oil pressure sensor. Start the engine and measure the oil pressure at various crankshaft speeds. Oil pressure...

Cooling system
Fig. 4.70. Engine cooling system diagram: 1 - engine; 2 - radiator; 3 - expansion tank with degassing valve after thermostat; 4 - heater radiators; 5 - thermostat bracket; 6 - Thermovalve bracket; 7 - water pump; 8 -...

Filling the cooling system and removing air
When filling the system, it is necessary to open both air bleed valves located at the top of the radiator and on the thermostat block located on the coolant drain line from the cylinder head Fill the cooling system with...

Water pump
Removal Place the vehicle on a lift. Disconnect the cable from the negative terminal of the battery. Drain the coolant and engine oil. Do not screw in the oil drain plug. Remove the right front wheel and the right wheel...

Set of cooling system elements together with a radiator
Fig. 4.73. Removing the cooling system components kit Use the charging station to discharge the refrigerant from the air conditioning system circuit. Open the relay box and disconnect the radiator-mounted cooling system...

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