3315474 - Introduction - ENGINE (Automatic transmission)

6 cylinder engine in a 60° V formation, 2492 c.c./2959 c.c., static advance ignition with a twin overhead camshaft for each cylinder head, hydraulic tappets, 4 valves per cylinder, Bosch Motronic ME2.1 integrated injection/ignition system.

VIEW OF ENGINE COMPARTMENT

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1, Fuel supply pipe 2, Air chamber 3, Oil vapour recirculation pipe 4, Vacuum intake pipe 5, Throttle body integrated with D.V.L. 6, Engine coolant reservoir 7, Brake/clutch fluid reservoir 8, A.B.S. hydraulic/electronic control unit 9, Resonator 10, Power assisted steering fluid reservoir

DESCRIPTION

General characteristics

The unit comprises the engine and all the systems required for its operation:

  • fuel supply system;
  • air supply system;
  • exhaust system;
  • emission control system;
  • cooling system.
The operation of these systems is optimized by an electronic control system governed by a control unit. An understanding of the operating logic of the control unit gives an overall picture of the entire GROUP 10 system (  See subassembly 1056   PETROL INJECTION SYSTEM ).

Fuel supply system

It is the returnless type with an electric fuel pump immersed in the tank and a casing which incorporates the voltage regulator, the fuel gauge and the filter (for further details  See subassembly 1040   FUEL TANK AND PIPES ).

Air supply system

There is an intake air supply system with a motorized butterfly operated directly by the injection/ignition control unit (for further details  See subassembly 1048   ENGINE AIR SUPPLY CIRCUIT ).

Exhaust system

The exhaust system is equipped with a three-way catalytic converter and a Lambda sensor (for further details  See subassembly 1076   EXHAUST PIPES AND SILENCERS ).

Emission control system

The following emission control systems are fitted on this model:

  • exhaust emission control system with a three-way catalytic converter and Lambda sensor;
  • crankcase vapour/gas recirculation system;
  • fuel anti-evaporation system;
(for further details  See subassembly 1080   EXHAUST EMISSION CONTROL SYSTEM ).

Cooling system

Forced circulation with a centrifugal vane pump (for further details  See subassembly 1088   ENGINE COOLING ).

CONSTRUCTION FEATURES

6 cylinder engine in a 60° V formation, 2492 c.c./2959 c.c., static advance ignition with a twin overhead camshaft for each cylinder head, hydraulic tappets, 4 valves per cylinder, Bosch Motronic ME3.1 integrated injection/ignition system.

View of engine compartment

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1, Fuel supply pipe 2, Air chamber 3, Injection/ignition control unit 4, Oil vapour recirculation pipe 5, Vacuum pipe 6, Throttle body integal with D.V.L. 7, Engine coolant reservoir 8, Brake/clutch fluid reservoir 9, Resonator 10, Power assisted steering fluid reservoir

Exhaust system

The exhaust system has catalytic pre-converters, catalytic converters and Lambda sensors (for further details  See subassembly 1076   EXHAUST PIPES AND SILENCERS ).

Emission control system;

The following emission control systems are fitted on this model:

  • emission control system with catalytic pre-converters, catalytic converters and Lambda sensors;
  • crankcase vapour/gas recirculation system;
  • fuel evaporation control system; (for further details).