0387590 FLOAT CHAMBER JOHNSON
35E76G, 50R79C, 55E77D, 55E78S, 55E79C, 70EL76D, 70EL77S, 70EL78C, 70EL79R, 75ELR76D, 75ELR77S, 75ELR78C, 75ELR79R, J40RSLR, J40RWCDB, J40RWCOM, J40RWCRA, J50BECIC, J50ECSR, J55RCIM, J55RLCSA, J60ECIA, J60ECSR, J70ELCIH, J70ELCSA, J75ERCIH, J75ERCSA
FLOAT
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Compatible models:
BRP JOHNSON entire parts catalog list:
- CARBURETOR » 0387590
55E77D, 55EL77D 1977
55E78S, 55EL78S 1978
55E79C, 55EL79C 1979
70EL76D 1976
70EL77S 1977
70EL78C 1978
70EL79R 1979
75ELR76D, 75ER76D 1976
75ELR77S, 75ER77S 1977
75ELR78C, 75ER78C 1978
75ELR79R, 75ER79R 1979
J40RSLR, J40RSR, J40RWCTR, J40RWLCTR 1983
J40RWCDB, J40RWLCDB 1986
J40RWCOM, J40RWLCOM 1985
J40RWCRA, J40RWLCRA 1984
J50BECIC, J50BELCIC 1981
J50ECSR, J50ELCSR 1980
J55RCIM, J55RLCIM 1981
J55RLCSA 1980
J60ECIA, J60ECIH, J60ELCIA, J60ELCIH, J60TLCIA, J60TLCIH 1981
J60ECSR, J60ELCSR 1980
J70ELCIH, J70ELCIM, J70TLCIM 1981
J70ELCSA 1980
J75ERCIH, J75ERCIM, J75ERLCIH, J75ERLCIM, J75TELCIM, J75TRLCIH 1981
J75ERCSA, J75ERLCSA, J75TRLCSA 1980
Information:
Table 2
Required Tools
Tool Part Number Part Description Qty
A 473-2944 Exhaust Parts Kit 1
Illustration 1 g03790973
Typical view of the Pump and Electronics Unit (PEU)
(1) DEF Pump
(2) DEF pressure line connector
(3) DEF suction line connection
Illustration 2 g03790991
Typical view of the DEF tank
(4) DEF tank header unit
(5) DEF suction line connection
(6) DEF return Line connectionComplete the procedure in the order in which the steps are listed.
Table 3
Troubleshooting Test Steps Values Results
1. Check that the latest available software is installed and there are no applicable Technical Information Bulletins or Special Instruction documentation released
A. Ensure that the latest software is installed on the engine ECM.
B. Ensure that the latest software is installed on the Dosing Control Unit (DCU)
If necessary, refer to Troubleshooting, "ECM Software - Install" for the correct procedure.
C. Ensure all Technical Information Bulletins and/or Special Instruction documented for the issue and/or product are reviewed and followed.
Software and Publications
Result: The latest software is not installed.
Repair: Install the latest engine ECM software and then install the latest DCU software. If necessary, refer to Troubleshooting, "ECM Software - Install" for the correct procedure.
Start the engine and wait for 2 minutes.
If the fault is cleared, return the engine to service.
If the fault is still present, proceed to Test Step 2.
Result: Applicable Technical Information Bulletin/Special Instruction publication is available.
Repair: Review and follow instructions provided in the available publication.
Result: The latest software is installed.
Proceed to Test Step 2.
2. Check the DEF Lines for Restrictions
A. Turn the keyswitch to the OFF position for 15 minutes. Ensure the DEF system purge and the cool-down cycle has completed.
Note: The keyswitch must be OFF until the "Wait to Disconnect" lamp switches off to allow the DEF pump to purge, reset the code, and reset the Diesel Exhaust Fluid Controller (DCU).
B. Remove the DEF pressure line from the DEF pump connection (2) and the DEF injector. Install Tooling (A) on the DEF pump and injector connections.
C. Remove the DEF return line from the DEF tank header connection (6) and the DEF injector. Install Tooling (A) on the DEF tank header and injector connections.
D. Inspect the DEF pressure line and the DEF return line for restrictions and/or obstructions. If necessary, use low-pressure air.
E. Inspect the DEF return pipe in the DEF tank header for restrictions and/or obstructions.
Note: Possible obstructions are ice, DEF deposits, or debris.
DEF suction line restriction
Result: An obstruction was found in a DEF line.
Repair: Flush line with deionized water or clean low-pressure air. If necessary, replace the line.
Proceed to Test Step 6.
Result: An obstruction was found in the DEF tank header return pipe.
Repair: Remove the DEF tank header from the DEF tank. Refer to Disassembly and Assembly, Manifold (DEF Heater) - Remove and Install.
Flush the return pipe with deionized water or clean low-pressure air. If necessary, replace the DEF tank header.
Install the DEF tank header in the DEF tank. Refer to Disassembly and Assembly, Manifold (DEF Heater) - Remove and Install.
Proceed to Test Step 6.
Result: An obstruction was not found.
Proceed to Test Step 3.
3. Check for a Restriction in the DEF Pump
Note: If necessary, move the engine to an area where the ambient temperature is at least 10° C (50° F) to perform this step. Make sure that the DEF temperature is at least 10° C (50° F)before performing this step. The DEF system will not prime if the temperature is too low.
A. Connect the DEF pressure line to DEF pump connection (2). Place the other end of the DEF pressure line into a suitable container to collect the DEF.
B. Turn the keyswitch to the ON position. Run the engine and check that DEF is flowing from the DEF pressure line into the container.
Note: Do not run the engine for more than 120 seconds.
C. Turn the keyswitch to the OFF position. Remove the DEF pressure line from the container immediately to prevent the DEF being sucked back into the line when the DEF system purges.
DEF pump restriction
Result: DEF did not flow from the DEF pressure line into the container.
Repair: Replace the DEF pump. Refer to the Disassembly and Assembly manual for the correct procedure.
Proceed to Test Step 7.
Result: DEF flowed from the pressure line into the container.
Proceed to Test Step 4.
4. Check for a Restriction in the DEF Injector
Note: If necessary, move the engine to an area where the ambient temperature is at least 10° C (50° F) to perform this step. The DEF system will not prime if the ambient temperature is too low.
A. Connect the DEF pressure line and the DEF return line to the DEF injector. Place the other end of the DEF return line into a suitable container to collect the DEF.
B. Turn the keyswitch to the ON position. Run the engine and check that DEF is flowing from the DEF pressure line into the container.
Note: Do not run the engine for more than 120 seconds.
C. Turn the keyswitch to the OFF position. Remove the DEF pressure line from the container immediately to prevent the DEF being sucked back into the line when the DEF system purges.
DEF injector restriction
Result: DEF did not flow from the DEF return line into the container.
Repair: Install a replacement DEF injector. Refer to Disassembly and Assembly for the correct procedure.
Proceed to Test Step 5.
Result: DEF flowed from the return line into the container.
Proceed to Test Step 6.
5. Perform a DEF Dosing System Accuracy Test
A. Turn the keyswitch to the OFF position.
B. Remove the DEF injector. Refer to Disassembly and Assembly, "DEF Injector and Mounting - Remove and Install".
Note: Leave all lines connected to the DEF injector.
C. Install the DEF injector into Tooling B and Tooling C.
D. Turn the keyswitch to the ON position.
E. Connect to the electronic service tool.
F. Perform the "DEF Dosing System Accuracy Test". Refer to Testing and Adjusting, "Aftertreatment SCR System Dosin
Parts float JOHNSON:
0302559
0302559 FLOAT, Indicator
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
0378895
0378895 FLOAT VALVE,Seat and gasket assembly
100ESL71A, 100ESL72R, 100ML79S, 115EL77S, 115ESL69E, 115ESL70D, 115ESL73M, 115ESL74B, 115ESL75E, 115ETZ78C, 115ML79R, 115TXL77S, 125ESL71C, 125ESL72R, 135ESL73M, 135ESL74B, 135ESL75E, 140ML77S, 140ML78C, 140ML79R, 20R69B, 20R70C, 20R71S, 20R72R, 20R7
0382363
0382363 FLOAT AND ARM ASSEMBLY
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25E77S, 25E78C, 25E79R, 25R69B, 25R70C, 25R71S, 35E76G, 35E77C, 35E78R, 35E79A, 50ES71S, 50ES72C, 50ES73R, 50ES74M, 50ES75B, 50R79C, 55E76E, 55E77D, 55E78S, 55E79C, 55ES6
0321411
0321411 FLOAT CHAMBER ASSY.
50R79C, 55E77D, 55E78S, 55E79C, 70EL76D, 70EL77S, 70EL78C, 70EL79R, 75ELR76D, 75ELR77S, 75ELR78C, 75ELR79R, J50BECIC, J50BECNR, J50BECRM, J50BECTA, J50ECSR, J55RCIM, J55RLCSA, J55RSLN, J55RWLCRD, J60ECIA, J60ECNM, J60ECSR, J60ECTB, J60ELCRE, J70ELCIH
0678882
0678882 FLOAT VALVE
4R79D, J10ECOM, J10ELCID, J10ELCNS, J10ELCRA, J10ELCTC, J15ECIS, J15ECNC, J15ECOB, J15ECRM, J15ECTR, J20CRCOS, J25ECIB, J25ECNE, J25ECOC, J25ECRS, J25ECTD, J25RSA, J25RSLS, J25RWCOS, J25RWCRD, J30ECOA, J30ECRR, J35ECIG, J35ECND, J35ECRR, J35ECTS, J40
0396521
0396521 FLOAT & VALVE SEAT ASSY.
BJ115ELEDR, BJ115ELEUA, BJ115GLECM, BJ115PLEEM, BJ115PLSIE, BJ115PLSSB, BJ150ELECD, BJ150ELEDB, BJ150ELEUC, BJ175EXECD, BJ175EXEDB, BJ175EXEUC, BJ175PLEES, BJ175PLSIF, BJ175PLSSC, BJ20SEECB, BJ20SEEDA, BJ20SEEUM, BJ20SRECB, BJ20SREDA, BJ20SREUM, BJ25