0204705 JOHNSON ARM,Valve,slow speed valve arm


0204705 ARM,Valve,slow speed valve arm JOHNSON 20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25R69B, 25R70C, 25R71S, 40E72E, 40E73D, 40E74S, 40E75C, FD-22A ARM
0204705 ARM,Valve,slow speed valve arm JOHNSON
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04-05-2020

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OMC Evinrude Johnson Needle Valve Arm P/N 204705 0204705 NOS
$33.03
 

15-06-2020
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Johnson Evinrude OMC New OEM Needle Valve Arm, 0204705
SKU: 0204705 || Sold Each || Please verify your own fitment
Number on catalog scheme: 22
 

BRP JOHNSON entire parts catalog list:

20R69B, 20R69D, 20RL69B, 20RL69D 1969
20R70C, 20R70E, 20RL70C, 20RL70E 1970
20R71S, 20RL71S 1971
20R72R, 20RL72R 1972
20R73A, 20RL73A 1973
25E72R, 25EL72R, 25R72R, 25RL72R 1972
25E73A, 25EL73A, 25R73A, 25RL73A 1973
25E74M, 25EL74M, 25R74M, 25RL74M 1974
25E75B, 25EL75B, 25R75B, 25RL75B 1975
25E76E, 25EL76E, 25R76E, 25RL76E 1976
25R69B, 25R69D, 25RL69B, 25RL69D 1969
25R70C, 25R70E, 25RL70C, 25RL70E 1970
25R71S, 25RL71S 1971
40E72E, 40EL72E, 40R72E, 40RL72E 1972
40E73D, 40EL73D, 40R73D, 40RL73D 1973
40E74S, 40EL74S, 40R74S, 40RL74S 1974
40E75C, 40EL75C, 40R75C, 40RL75C 1975
FD-22A, FD-22E, FD-22M, FDL-22A, FDL-22E, FDL-22M 1968

Information:


Illustration 1 g06382814
(1) Diesel Exhaust Fluid (DEF) injector
(2) Selective Catalytic Reduction (SCR) system
(3) SCR mixing tube
(4) Diesel Oxidation Catalyst (DOC)
(5) Diesel Particulate Filter (DPF)
(6) Exhaust intake connection
(7) Exhaust outlet connection
Illustration 2 g06382836The first filter media that exhaust gas is exposed to is the DOC, a flow through style filter. The DOC oxidizes hydrocarbons, carbon monoxide, and soluble organic fractions as the exhaust gas flows through the filter. There are two temperature sensors, one at the inlet of the DOC canister, and one at the outlet of the DPF. These two sensors are used to make sure DOC is hot enough to oxidize efficiently. The DPF outlet temperature is also used by ECM to know that the exhaust leaving the DPF and entering the SCR.The DPF is a catalyzed ceramic filter which traps particulate matter (soot). The trapped soot is cleaned from the DPF through a catalytic reaction by heating the filter through a process called regeneration. The inlet section of the DPF cannister contains the DPF inlet pressure sensor, and DPF delta pressure sensor. The DPF Inlet Pressure sensor is used to measure the backpressure being generated by the DPF. The delta pressure sensor is used to measure soot collected in the DPF. The delta pressure sensor is measuring the pressure drop across the DPF. Since the delta pressure sensor is measuring flow resistance across the DPF, the sensor will also detect ash loading.Once the exhaust gas flows through the DPF, the exhaust gas enters the SCR mixing tube where Diesel Exhaust Fluid (DEF) is injected for the SCR. After the exhaust gas flows through the DPF, the gas enters the SCR. The DEF injected prior to the SCR, mixes with exhaust gas in SCR to reduce Nitrogen Oxides (NOX). DEF contains deionized water and urea, which turns to ammonia when heated. The ammonia reacts with the SCR catalyst to convert NOX into harmless nitrogen and water vapor. At the inlet of the SCR cannister is the SCR inlet temperate sensor. This sensor is used to make sure that the temperature is hot enough in the catalyst for DEF dosing to occur.Compact Clean Emissions Module (CEM)
Illustration 3 g06239572
(1) Diesel Exhaust Fluid (DEF) injector
(2) Selective Catalytic Reduction (SCR) system
(3) SCR mixing tube
(4) Diesel Oxidation Catalyst (DOC)
(5) Diesel Particulate Filter (DPF)
(6) Exhaust intake connection
(7) Exhaust outlet connectionClean Emissions Module Basics
A flexible exhaust pipe connects the engine to the Clean Emissions Module (CEM). The CEM contains the Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF) and the Selective Catalytic Reduction (SCR) systems. The CEM contains several mechanical and electrical components that reduce various exhaust emissions emitted from the engine. All the systems on the CEM are controlled by the engine ECM. Exhaust gases entering the CEM flow through the DOC first, then the DPF and SCR.
Illustration 4 g06239584
(1) SCR Outlet Temperature
(2) Exhaust Differential Inlet Port
(3) Exhaust Differential Outlet Port
Illustration 5 g06258346
(4) DOC Inlet Pressure Port
(5) DOC Outlet Pressure Port
(6) DPF Inlet Temperature
(7) DOC Inlet Temperature
Illustration 6 g06239590
Air Flow through CEM Package
The first filter media that exhaust gas is exposed to is the DOC, a flow through style filter. The DOC oxidizes hydrocarbons, carbon monoxide, and soluble organic fractions as the exhaust gas flows through the filter. There are two temperature sensors, one at the inlet of the DOC canister, and one at the outlet. These two sensors are used to make sure DOC is hot enough to oxidize efficiently. The DOC outlet temperature is also used by ECM to know that the exhaust leaving the DOC, and entering the DPF, is hot enough for regeneration to begin. There also two ports on the DOC that can be used to hook up a delta pressure sensor for troubleshooting.Once the exhaust gas flows through the DOC, the exhaust gas enters the SCR mixing tube where Diesel Exhaust Fluid (DEF) is injected for the SCR. Before the SCR, exhaust gas enters the DPF. The DPF is a catalyzed ceramic filter which traps particulate matter (soot). The trapped soot is cleaned from the DPF through a catalytic reaction by heating the filter through a process called regeneration. The inlet section of the DPF cannister contains the DPF inlet pressure sensor, and DPF delta pressure sensor. The DPF Inlet Pressure sensor is used to measure the backpressure being generated by the DPF. The delta pressure sensor is used to measure soot collected in the DPF. The delta pressure sensor is measuring the pressure drop across the DPF. Since the delta pressure sensor is measuring flow resistance across the DPF, the sensor will also detect ash loading.After the exhaust gas flows through the DPF, the gas enters the SCR. The DEF injected prior to the DPF, mixes with exhaust gas in SCR to reduce Nitrogen Oxides (NOX). DEF contains deionized water and urea, which turns to ammonia when heated. The ammonia reacts with the SCR catalyst to convert NOX into harmless nitrogen and water vapor. At the inlet of the SCR cannister is the SCR inlet temperate sensor. This sensor is used to make sure that the temperature is hot enough in the catalyst for DEF dosing to occur.Engine Throttle Valve and HC Dosing Regeneration
Illustration 7 g06258348
(1) Engine Throttle ValveMostly, regeneration is achieved passively, which means no added fuel to achieve regeneration. This is achieved by an engine throttle valve. The engine throttle valve is a butterfly valve located between the charger cooler outlet and the inlet manifold. This valve is the primary means of regeneration. The engine throttle valve is controlled by the ECM and is used to restrict the flow of air into the inlet manifold and the combustion chamber. This restriction increases the exhaust gas temperature and is used to control the DOC and SCR temperature to ensure emissions compliance in all operating conditions.If passive regen


Parts arm JOHNSON:

0308337
0303980
 
0303980 ARM,Manual locking lever
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25E77S, 25E78C, 25E79R, 25R69B, 25R70C, 25R71S, 35E77C, 35E78R, 35E79A, D25RWA, FD-22A, J20CRCCA, J20CRCDC, J20CRCEM, J20CRCOS, J20CRCUR, J20CREIE, J20CREND, J20CRESB, J2
0303863
 
0303863 ARM,Manual locking lever
33E69A, 33E69A, 33E70M, 33E70M, 40E69R, 40E70A, 40E71B, 40E72E, 40E73D, 40E74S, 40E75C, 40E76A, 40ES69R, 40ES70A, 40R69R, 40R70A, J40RSLR, J40RWCDB, J40RWCOM, J40RWCRA, RD-30A, RDS-30A, RK-30A, RX-16M
0378003
ARM, Choke
0378003 ARM, Choke
40E69R, 40E70A, 40E72E, 40E73D, 40E74S, 40E75C, 40E76A, 40ES69R, 40ES70A, 40R69R, 40R70A, RD-30A, RDS-30A, RK-30A, V4A-20A, V4S-20A
0278208
 
0278208 ARM & SHAFT
20R69B, 20R70C, 25R69B, 25R70C
0592931
 
0592931 ARM & SHAFT
20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E
0392931
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