45254 "O" RING, CONTROL VALVE TO MANIFOLD PLATE (3/4"O.D.) Mercury
1035204, 1045217, 1050200, 1060504, 1070500, 1080500, 1090520, 1090528, 1115100, 1115503, 1115520, 1115523, 1115525, 1115528, 1140520, 1140528, 1140629, 1150503, 1150538, 1150625
O
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Mercury entire parts catalog list:
- POWER TRIM COMPONENTS » 45254
1050200 1980,1982,1983,1984,1985,1986
- POWER TRIM COMPONENTS (WITHOUT CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITH CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS » 45254
- POWER TRIM COMPONENTS - WITHOUT CIRCUIT BREAKER AND FUSE » 45254
- POWER TRIM COMPONENTS - WITH CIRCUIT BREAKER AND FUSE » 45254
- POWER TRIM COMPONENTS (WITHOUT CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITH CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITHOUT CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITH CIRCUIT BREAKER AND FUSE) » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL PANEL » 45254
- HYDRAULIC PUMP AND CONTROL PANEL » 45254
- POWER TRIM COMPONENTS (WITHOUT CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITH CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITHOUT CIRCUIT BREAKER AND FUSE) » 45254
- POWER TRIM COMPONENTS (WITH CIRCUIT BREAKER AND FUSE) » 45254
- HYDRAULIC PUMP AND CONTROL PANEL » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL PANEL » 45254
- HYDRAULIC PUMP AND CONTROL VALVE » 45254
- HYDRAULIC PUMP AND CONTROL PANEL » 45254
Information:
Electronic Controls
Electronic Control Module
The ECM consists of two main components, the control computer (hardware) and the flash file (software). The control computer consists of a microprocessor and electronic circuitry. The flash file contains the engine's operational characteristics. The operating maps influence the engine's performance.Engine Governor
The engine ECM governs engine speed. The engine ECM and the flash file work together by controlling the amount of fuel that is delivered by the injectors. Desired engine rpm is determined by the throttle position sensor signal and certain sensor readings. Some diagnostic codes may alter engine speed from the desired engine speed. Actual engine rpm is monitored by the engine speed/timing sensor.Fuel Injection
The ECM controls the timing and the amount of fuel that is delivered to the cylinders. This determination is based on the actual conditions and the desired conditions at any given time.The ECM compares the desired engine speed to the actual engine speed. The actual engine speed is determined via a signal from the engine speed/timing sensor. If the desired engine speed is greater than the actual engine speed, the ECM injects more fuel in order to increase the actual engine speed.The ECM controls the amount of fuel that is injected by varying the signals to the injectors. The injectors will inject fuel only if the injector solenoid is energized. The ECM sends a high voltage signal to the solenoid. This high voltage signal energizes the solenoid. By controlling the timing and the duration of the high voltage signal, the ECM can control injection timing and the amount of fuel that is injected.Once the ECM determines the amount of fuel that is required, the ECM must determine the timing of the fuel injection. The ECM determines the top center position of each cylinder from the engine speed/timing sensor's signal. The ECM calculates the fuel injection timing relative to the top center position of the individual pistons. The ECM also provides the signal to the injector at the desired time. The ECM adjusts timing for optimum engine performance, optimum fuel economy, and optimum control of white smoke.Cold Mode Operation
The ECM limits engine power during cold mode operation and the ECM modifies injection timing during cold mode operation. Cold mode operation provides the following benefits:
Increased cold weather starting capability
Reduced warm-up time
Reduced white smokeCold mode is activated whenever the engine coolant temperature falls below a predetermined value. Cold mode remains active until the engine coolant temperature rises above a predetermined value or until the engine has been running for a predetermined amount of time.FRC Limit
The flash file inside the engine ECM sets certain limits on the amount of fuel that can be injected. The FRC limit is a limit that is based on the boost pressure. The boost pressure is calculated as the difference in pressure between atmospheric pressure and turbocharger outlet pressure. The FRC limit is used to control the air/fuel ratio for control of emissions. When the engine ECM senses a higher boost pressure, the engine ECM increases the FRC limit. A higher boost pressure indicates that there is more air in the cylinder. When the engine ECM increases the FRC limit, the engine ECM allows more fuel into the cylinder.Rated Fuel Position
The rated fuel position is a limit that is based on the power rating of the engine. The rated fuel position is similar to the rack stops and the torque spring on a mechanically governed engine. The rated fuel position determines maximum power and torque values for a specific engine family and a specific rating. The rated fuel position is programmed into the flash file at the factory.Basic Electronic System Diagram
Illustration 1 g01407597
Electronic Control Module
The ECM consists of two main components, the control computer (hardware) and the flash file (software). The control computer consists of a microprocessor and electronic circuitry. The flash file contains the engine's operational characteristics. The operating maps influence the engine's performance.Engine Governor
The engine ECM governs engine speed. The engine ECM and the flash file work together by controlling the amount of fuel that is delivered by the injectors. Desired engine rpm is determined by the throttle position sensor signal and certain sensor readings. Some diagnostic codes may alter engine speed from the desired engine speed. Actual engine rpm is monitored by the engine speed/timing sensor.Fuel Injection
The ECM controls the timing and the amount of fuel that is delivered to the cylinders. This determination is based on the actual conditions and the desired conditions at any given time.The ECM compares the desired engine speed to the actual engine speed. The actual engine speed is determined via a signal from the engine speed/timing sensor. If the desired engine speed is greater than the actual engine speed, the ECM injects more fuel in order to increase the actual engine speed.The ECM controls the amount of fuel that is injected by varying the signals to the injectors. The injectors will inject fuel only if the injector solenoid is energized. The ECM sends a high voltage signal to the solenoid. This high voltage signal energizes the solenoid. By controlling the timing and the duration of the high voltage signal, the ECM can control injection timing and the amount of fuel that is injected.Once the ECM determines the amount of fuel that is required, the ECM must determine the timing of the fuel injection. The ECM determines the top center position of each cylinder from the engine speed/timing sensor's signal. The ECM calculates the fuel injection timing relative to the top center position of the individual pistons. The ECM also provides the signal to the injector at the desired time. The ECM adjusts timing for optimum engine performance, optimum fuel economy, and optimum control of white smoke.Cold Mode Operation
The ECM limits engine power during cold mode operation and the ECM modifies injection timing during cold mode operation. Cold mode operation provides the following benefits:
Increased cold weather starting capability
Reduced warm-up time
Reduced white smokeCold mode is activated whenever the engine coolant temperature falls below a predetermined value. Cold mode remains active until the engine coolant temperature rises above a predetermined value or until the engine has been running for a predetermined amount of time.FRC Limit
The flash file inside the engine ECM sets certain limits on the amount of fuel that can be injected. The FRC limit is a limit that is based on the boost pressure. The boost pressure is calculated as the difference in pressure between atmospheric pressure and turbocharger outlet pressure. The FRC limit is used to control the air/fuel ratio for control of emissions. When the engine ECM senses a higher boost pressure, the engine ECM increases the FRC limit. A higher boost pressure indicates that there is more air in the cylinder. When the engine ECM increases the FRC limit, the engine ECM allows more fuel into the cylinder.Rated Fuel Position
The rated fuel position is a limit that is based on the power rating of the engine. The rated fuel position is similar to the rack stops and the torque spring on a mechanically governed engine. The rated fuel position determines maximum power and torque values for a specific engine family and a specific rating. The rated fuel position is programmed into the flash file at the factory.Basic Electronic System Diagram
Illustration 1 g01407597
Parts o Mercury:
48171
48171 O-RING
1035204, 1040100, 1045217, 1050200, 1060504, 1070500, 1080500, 1090520, 1115520, 1115523, 1140520, 1150625, 1150628, 1175626, 1200628, 1200V13ED, 1200V13ER, 1200V23ED, 1200V23ER, 1225620, 1225V13EB, 1225V13EF, 1225V23ED, 1225V33EB, 1250422GD, 1250V23
38933
38933 O-RING
1020100, 1020202, 1020208, 1040100, 1090520, 1090524, 1115520, 1115523, 1115525, 1200203, 1B25211UF
20081
20081 "O" RING, CRANKCASE TOP
1020100, 1020202, 10402139D, 1045217, 1050200, 1115100, 1135100, 1200203, 1500100, 1500101, 1500205, 1500206, 1650100, 1800100
47254
47254 "O" RING, UPPER END CAP
1035204, 1035207, 1040200, 1040208, 1075524, 1080500, 1080508, 1090520, 1090524, 1090528, 1115100, 1115503, 1115520, 1115523, 1115525, 1115528, 1135100, 1140520, 1140528, 1140629, 1150503, 1150538, 1150625, 1400100, 1402202, 1402205, 1650502, 1800100
35126
35126 "O" RING, CARRIER
1070312BC, 1070717, 1075217DD, 1075217FD, 1075217PD, 1075217VD, 10752L7DF, 10752L7FF, 1075317DB, 1075317FB, 10754120D, 1075412DB, 1075412DD, 1075412DN, 1075412FB, 1075412FY, 1075D73FY, 1075D73HY, 1090412DB, 1090412DC, 1090412DD, 1090412DN, 1090412DY,
35480
35480 "O" RING, FUEL INLET COVER
1075524, 1080500, 1090520, 1090524, 1115520, 1115523, 1115525, 1135726, 1150625, 1150628, 1175626, 1200628, 1300623
62700
62700 O-RING, (3.250 Inside Diameter)
111047JHD, 1115473WD, 11354120D, 1135412GD, 1135412MD, 1135412SD, 1135412VD, 1135412WD, 1135473UD, 1135473VD, 1135473YD, 1135726, 1135D73CD, 1135D73FT, 1150413CD, 1150413FY, 1150413HF, 1150413HY, 1150413SD, 1150413VD, 1150413WD, 1150413ZD, 1150423FG,
67207
67207 O-RING
111047JHD, 1115473WD, 1135473UD, 1135473VD, 1135473YD, 1135D73CD, 1135D73FT, 1150625, 1150628, 1175626, 1175P73HY, 1200473TD, 1200473UD, 1200473VD, 1200473WD, 1200473YD, 1200628, 1200D73AD, 1200D73CD, 1200D73ET, 1200D73HT, 1200E73EY, 1200E73HY, 1225E