0389094 COER, Air silencer JOHNSON
100ML79S, 115ETZ78C, 115ML79R, 140ML78C, 140ML79R, 85ETLR78C, 85ML79R, J100MLCSC, J115MLCIH, J115MLCSA, J140MLCIH, J140MLCSA, J85MLCSA, J90MLCIH
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Number on catalog scheme: 15
Compatible models:
BRP JOHNSON entire parts catalog list:
- INTAKE MANIFOLD » 0389094
115ML79R, 115TL79R, 115TXL79R 1979
140ML78C, 140TL78C, 140TX78C 1978
140ML79R, 140TL79R, 140TXL79R 1979
85ETLR78C, 85ML78C, 85TXLR78C 1978
85ML79R, 85TL79R, 85TXL79R 1979
J100MLCSC, J100TRLCSC, J100TRXCSC 1980
J115MLCIH, J115MLCIM, J115TLCIH, J115TLCIM, J115TXCIH, J115TXCIM 1981
J115MLCSA, J115TLCSA, J115TXCSA 1980
J140MLCIH, J140MLCIM, J140TLCIH, J140TLCIM, J140TXCIH, J140TXCIM 1981
J140MLCSA, J140TLCSA, J140TXCSA 1980
J85MLCSA, J85TLCSA, J85TXCSA 1980
J90MLCIH, J90MLCIM, J90TLCIH, J90TLCIM, J90TXCIH, J90TXCIM 1981
Information:
Illustration 1 g01332437
Typical fuel system schematic
(1) Fuel supply line
(2) Unit injectors
(3) Fuel gallery (fuel manifold)
(4) Electronic Control Module (ECM)
(5) Pressure regulating valve
(6) Secondary fuel filter
(7) Fuel priming pump
(8) Distribution block
(9) Fuel temperature sensor
(10) Fuel transfer pump
(11) Pressure relief valve
(12) Check valve
(13) Fuel tank
(14) Fuel return line
(15) Fuel cooler (If equipped)
(16) Fuel return line to tank The fuel supply circuit is a conventional design for unit injector diesel engines. The system consists of the following major components that are used to deliver low pressure fuel to the unit injectors:Fuel tank - The fuel tank is used to store the fuel.Fuel priming pump - The fuel priming pump is used to evacuate the air from the fuel system. As the air is removed the system fills with fuel.Fuel filter - The fuel filter is used to remove abrasive material and contamination from the fuel system.Supply lines and return lines - Supply lines and return lines are used to deliver the fuel to the different components.The purpose of the low pressure fuel supply circuit is to supply fuel that has been filtered to the fuel injectors at a rate that is constant and a pressure that is constant. The fuel system is also utilized to cool components such as the ECM and the fuel injectors.Once the injectors receive the low pressure fuel, the fuel is pressurized again before the fuel is injected into the cylinder.The unit injector uses mechanical energy that is provided by the camshaft to achieve pressures that can be in excess of 200000 kPa (30000 psi).Control of the fuel delivery is managed by the engine's ECM. Data from several of the engine systems is collected by the ECM and processed in order to manage these aspects of fuel injection control:
Injection timing
Fuel injection timing advance
Injection duration
Engine cold mode status The mechanical electronic fuel system relies on a large amount of data from the other engine systems. The data that is collected by the ECM will be used in order to provide optimum performance