0303311 SCREW JOHNSON
100ESL71A, 100ESL72R, 100ML79S, 115EL77S, 115ESL69E, 115ESL70D, 115ESL73M, 115ESL74B, 115ESL75E, 115ETZ78C, 115ML79R, 115TXL77S, 125ESL71C, 125ESL72R, 135ESL73M, 135ESL74B, 135ESL75E, 140ML77S, 140ML78C, 140ML79R, 150TL78S, 150TL79C, 175TL77S, 175TL7
SCREW
Price: query
Rating:
Compatible models:
100ESL71A
100ESL72R
100ML79S
115EL77S
115ESL69E
115ESL70D
115ESL73M
115ESL74B
115ESL75E
115ETZ78C
115ML79R
115TXL77S
125ESL71C
125ESL72R
135ESL73M
135ESL74B
135ESL75E
140ML77S
140ML78C
140ML79R
150TL78S
150TL79C
175TL77S
175TL78C
175TL79R
200TL76S
200TL77C
200TL78R
200TL79A
235TL70A
235TL78R
33E69A
33E70M
40E69R
40E70A
40E71B
40ES69R
40ES70A
40R69R
40R70A
55ES69A
60ES70B
60ES71C
70EL76D
70EL77S
70EL78C
75ELR76D
75ELR77S
75ELR78C
85EL76D
85EL77S
85ESL69E
85ESL70B
85ESL71A
85ESL72R
85ESL73M
85ESL74B
85ESL75E
85ETLR78C
85ML79R
85TXLR77S
J100MLCSC
J115MLCIH
J115MLCNB
J115MLCSA
J115MLCTE
J140MLCIH
J140MLCNB
J140MLCSA
J140MLCTE
J150GTLCUR
J150STLCDC
J150STLCOH
J150STLCRD
J150STLCTE
J150TLCDC
J150TLCIA
J150TLCNM
J150TLCOS
J150TLCRD
J150TLCSF
J150TLCTB
J150TLCUR
J155WTLCDR
J155WTLCOC
J155WTLCRS
J155WTLCUA
J175TLCDR
J175TLCIH
J175TLCNB
J175TLCOC
J175TLCSA
J175TLCTD
J175TLCUA
J185TLCOC
J185TLCRS
J200TLCIH
J200TLCNE
J200TLCSF
J200TLCTD
J235STLCOR
J235STLCRC
J235STLCTS
J235TLCIB
J235TLCNE
J235TLCOR
J235TLCRC
J235TLCSM
J235TLCTD
J85MLCSA
J90MLCIH
J90MLCNB
J90MLCTE
RD-30A
RDS-30A
RK-30A
RX-16M
TR-10R
V4A-20A
V4S-20A
V4T-14B
VX-14B
JOHNSON
BRP JOHNSON entire parts catalog list:
100ESL72R 1972
100ML79S, 100TLR79S, 100TXLR79S 1979
115EL77S, 115ETL77 1977
115ESL69E, 115ESL69S 1969
115ESL70D 1970
115ESL73M 1973
115ESL74B, 115ETL74B 1974
115ESL75E, 115ETL75E 1975
115ETZ78C, 115ML78C, 115TXL78C 1978
115ML79R, 115TL79R, 115TXL79R 1979
115TXL77S 1977
125ESL71C 1971
125ESL72R 1972
135ESL73M 1973
135ESL74B, 135ETL74B 1974
135ESL75E, 135ETL75E 1975
140ML77S, 140TL77S, 140TXL77S 1977
140ML78C, 140TL78C, 140TX78C 1978
140ML79R, 140TL79R, 140TXL79R 1979
150TL78S, 150TXL78S 1978
150TL79C, 150TXL79C 1979
175TL77S, 175TXL77S 1977
175TL78C, 175TX78C 1978
175TL79R, 175TXL79R 1979
200TL76S, 200TXL76S 1976
200TL77C, 200TXL77C 1977
200TL78R, 200TX78R 1978
200TL79A, 200TXL79A 1979
235TL70A, 235TXL79A 1979
235TL78R, 235TX78R 1978
33E69A, 33EL69A, 33R69A, 33RL69A 1969
33E69A, 33EL69A, 33R69A, 33RL69A 1969
33E70M, 33EL70M, 33R70M, 33RL70M 1970
33E70M, 33EL70M, 33R70M, 33RL70M 1970
40E69R, 40EL69R 1969
40E70A, 40EL70A 1970
40E71B, 40E71G, 40EL71B, 40EL71G, 40R71B, 40R71G, 40RL71B, 40RL71G 1971
40ES69R, 40ESL69R 1969
40ES70A, 40ESL70A 1970
40R69R, 40RL69R 1969
40R70A, 40RL70A 1970
55ES69A, 55ES69C, 55ESL69A, 55ESL69C 1969
60ES70B, 60ES70D, 60ESL70B, 60ESL70D 1970
60ES71C, 60ES71E, 60ESL71C, 60ESL71E 1971
70EL76D 1976
70EL77S 1977
70EL78C 1978
75ELR76D, 75ER76D 1976
75ELR77S, 75ER77S 1977
75ELR78C, 75ER78C 1978
85EL76D, 85EL76G, 85ETLR76D, 85ETLR76G 1976
85EL77S, 85ETLR77S 1977
85ESL69E, 85ESL69M, 85ESL69S 1969
85ESL70B, 85ESL70D 1970
85ESL71A, 85ESL71H 1971
85ESL72R 1972
85ESL73M 1973
85ESL74B 1974
85ESL75E 1975
85ETLR78C, 85ML78C, 85TXLR78C 1978
85ML79R, 85TL79R, 85TXL79R 1979
85TXLR77S 1977
J100MLCSC, J100TRLCSC, J100TRXCSC 1980
J115MLCIH, J115MLCIM, J115TLCIH, J115TLCIM, J115TXCIH, J115TXCIM 1981
J115MLCNB, J115TLCNB, J115TXCNB 1982
J115MLCSA, J115TLCSA, J115TXCSA 1980
J115MLCTE, J115TLCTE, J115TXCTE 1983
J140MLCIH, J140MLCIM, J140TLCIH, J140TLCIM, J140TXCIH, J140TXCIM 1981
J140MLCNB, J140TLCNB, J140TXCNB 1982
J140MLCSA, J140TLCSA, J140TXCSA 1980
J140MLCTE, J140TLCTE, J140TXCTE 1983
J150GTLCUR, J150STLCUR 1987
J150STLCDC 1986
J150STLCOH, J150STLCOS 1985
J150STLCRD 1984
J150STLCTE 1983
J150TLCDC, J150TXCDC 1986
J150TLCIA, J150TLCIH, J150TXCIA, J150TXCIH 1981
J150TLCNM, J150TXCNM 1982
J150TLCOS, J150TXCOS 1985
J150TLCRD, J150TXCRD 1984
J150TLCSF, J150TLCSR, J150TXCSF, J150TXCSR 1980
J150TLCTB, J150TLCTE, J150TXCTB, J150TXCTE 1983
J150TLCUR, J150TXCUR 1987
J155WTLCDR, J155WTXCDR 1986
J155WTLCOC, J155WTXCOC 1985
J155WTLCRS, J155WTXCRS 1984
J155WTLCUA, J155WTXCUA 1987
J175TLCDR, J175TXCDR 1986
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 screw JOHNSON:
0312852
0312852 SCREW,Throttle and choke valve
100ESL71A, 100ESL72R, 10E74G, 10E75C, 10E76G, 10E77A, 115EL77S, 115ESL69E, 115ESL70D, 115ESL73M, 115ESL74B, 115ESL75E, 115TXL77S, 125ESL71C, 125ESL72R, 135ESL73M, 135ESL74B, 135ESL75E, 140ML77S, 15E74G, 15E75C, 15E76A, 15E77M, 175TL77S, 1R69C, 1R70R,
0302963
0302963 SCREW,Impeller housing
4R69B, 4R70E, 4R71D, 4R72S, 4R73C, 4R74R, 4R75A, 4R76M, 4R77B, 4R78E, 4R79D, J4RLCSS, J4WCIC, J4WCNR, JH-23A, LD-13B
0306418
0306418 SCREW
100ESL71A, 100ESL72R, 100ML79S, 10E74G, 10E75C, 10E76G, 10E77A, 10E78M, 10EL79B, 115EL77S, 115ESL69E, 115ESL70D, 115ESL73M, 115ESL74B, 115ESL75E, 115ETZ78C, 115ML79R, 115TXL77S, 125ESL71C, 125ESL72R, 135ESL73M, 135ESL74B, 135ESL75E, 140ML77S, 140ML78
0312241
0312241 SCREW
10E74G, 10E75C, 10E76G, 10E77A, 10E78M, 10EL79B, 15E74G, 15E75C, 15E76A, 15E77M, 15E78B, 15E79E, 6R69M, 6R70B, 6R71E, 6R72D, 6R73S, 6R74C, 6R75R, 6R76A, 6R77M, 6R78B, 6R79E, 9R69S, 9R70A, 9R71R, 9R72M, 9R73B, BJ10EEDD, BJ10RELEUS, BJ15EEDS, BJ15RELEU
0306478
0306478 SCREW
6R69M, 6R70B, 6R71E, 6R72D, 6R73S, 6R74C, 6R75R, 6R76A, 6R77M, 6R78B, 6R79E, 9R69S, 9R70A, 9R71R, 9R72M, 9R73B, CD-25A, MQ-14D, VJ14RCCS, VJ14RCCS, VJ14RCEC, VJ14RCEC
0307609
0307609 SCREW,Leaf plate to block
25E77S, 25E78C, 25E79R, 35E77C, 35E78R, 35E79A, 40E72E, 40E73D, 40E74S, 40E75C, 40E76A, 55ES69A, 60ES70B, 60ES71C, 65ES72S, 65ES73R, 70EL76D, 70EL77S, 70EL78C, 70EL79R, 70ES74M, 70ES75B, 75ELR76D, 75ELR77S, 75ELR78C, 75ELR79R, 75ESLR75B, 9R69S, 9R70A
0309618
0325135
0325135 SCREW, Stator mounting
100ML79S, 115ML79R, 140ML79R, 150TL79C, 175TL79R, 200TL79A, 235TL70A, 85ML79R, BJ115TLEDA, BJ200CXEDR, BJ200CXEEB, BJ200CXSSE, BJ200PLSIF, BJ225CXEEC, BJ225CXSSR, BJ225PLSIF, BJ250CXECB, BJ250CXEDA, BJ250CXEUM, CJ275TLCDC, CJ300TLCDC, D100WTLM, HJ88M