0304800 MOUNT,Rubber,upper front JOHNSON
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25E77S, 25E78C, 25E79R, 25R69B, 25R70C, 25R71S, 35E76G, 35E77C, 35E78R, 35E79A, FD-22A, J20CRCOS, J25ECDR, J25ECIB, J25ECNE, J25ECOC, J25ECRS, J25ECTD, J25RCSA, J25RSA, J
MOUNT
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#82166 0304800
2021-05-16
#81836 0304800
2021-05-09
#81836 0304800
2021-05-09
#81836 0304800
2021-05-09
#81836 0304800
2021-05-09
#81836 0304800
2021-05-09
#71046 0304800
2020-03-09
Number on catalog scheme: 29
Compatible models:
20R69B
20R70C
20R71S
20R72R
20R73A
25E72R
25E73A
25E74M
25E75B
25E76E
25E77S
25E78C
25E79R
25R69B
25R70C
25R71S
35E76G
35E77C
35E78R
35E79A
FD-22A
J20CRCOS
J25ECDR
J25ECIB
J25ECNE
J25ECOC
J25ECRS
J25ECTD
J25RCSA
J25RSA
J25RSLS
J25RWCDC
J25RWCOS
J25RWCRD
J28ELCDS
J30ECDM
J30ECOA
J30ECRR
J35ECIG
J35ECND
J35ECRR
J35ECSM
J35ECTS
J35RCDM
JOHNSON
BRP JOHNSON entire parts catalog list:
- LOWER UNIT GROUP » 0304800
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
25E77S, 25EL77H, 25EL77S, 25R77H, 25R77S, 25RL77H, 25RL77S 1977
25E78C, 25EL78C, 25R78C, 25RL78C 1978
25E79R, 25EL79R, 25R79R, 25RL79R 1979
25R69B, 25R69D, 25RL69B, 25RL69D 1969
25R70C, 25R70E, 25RL70C, 25RL70E 1970
25R71S, 25RL71S 1971
35E76G, 35E76S, 35EL76G, 35EL76S, 35R76G, 35R76S, 35RL76G, 35RL76S 1976
35E77C, 35E77H, 35EL77C, 35EL77H, 35R77C, 35R77H, 35RL77C, 35RL77H 1977
35E78R, 35EL78R, 35R78R, 35RL78R 1978
35E79A, 35EL79A, 35R79A, 35RL79A 1979
FD-22A, FD-22E, FD-22M, FDL-22A, FDL-22E, FDL-22M 1968
J20CRCOS, J20CRLCOS, J20ECOS, J20ELCOS 1985
J25ECDR, J25ELCDR, J25RCDC, J25RDC, J25RLCDC, J25TECDC, J25TELCDC 1986
J25ECIB, J25ECIM, J25ELCIB, J25ELCIM, J25RCIM, J25RLCIM, J25TECIM, J25TELCIM 1981
J25ECNE, J25ELCNE, J25RCNB, J25RELCNB, J25RLCNB, J25TECNB 1982
J25ECOC, J25ELCOC, J25RCOS, J25RLCOS, J25TECOS, J25TELCOS 1985
J25ECRS, J25ELCRS, J25RCRD, J25RLCRD, J25TECRD, J25TELCRD 1984
J25ECTD, J25ELCTD, J25RCTE, J25RLCTE, J25TECTE, J25TELCTE 1983
J25RCSA, J25RLCSA, J25TECSA, J25TELCSA 1980
J25RSA, J25RSLA, J25RWCIM, J25RWLCIM 1981
J25RSLS, J25RSS, J25RWCTE, J25RWLCTE 1983
J25RWCDC, J25RWLCDC 1986
J25RWCOS, J25RWLCOS 1985
J25RWCRD, J25RWLCRD 1984
J28ELCDS 1986
J28ELCDS 1986
J30ECDM, J30ELCDM, J30RCDM, J30RLCDM, J30TECDM, J30TELCDM 1986
J30ECOA, J30ELCOA, J30RCOA, J30RLCOA, J30TECOA, J30TELCOA 1985
J30ECRR, J30ELCRR 1984
J35ECIG, J35ELCIG, J35RCIG, J35RLCIG 1981
J35ECND, J35ELCND, J35RCND, J35RLCND, J35TELCNB 1982
J35ECRR, J35ELCRR, J35RCRR, J35RLCRR, J35TELCRR 1984
J35ECSM, J35ELCSM, J35RCSM, J35RLCSM 1980
J35ECTS, J35ELCTS, J35RCTS, J35RLCTS, J35TELCTS 1983
J35RCDM, J35RLCDM 1986
Information:
Introduction
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
There have been instances of the 369-1255 Tensioner reported to be noisy. Most of the issues have been reported below 100 service hours.Solution
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Perform the following steps to identify the route cause of the issue.
Table 1
Troubleshooting Test Steps Values Results
1. Assembly Alignment
A. Visibly check the alignment between the following components:
•Refrigerant Compressor
• Belt Tensioner
• Alternator
• Idler Pulley
• Crank Pulley
Auxiliary assembly
Result: There is visible misalignment between the components
Repair: Remove and reinstall the components. Refer to Disassembly and Assembly for the correct procedure.
Result: The alignment is visibly correct.
Proceed to Test Step 2.
Illustration 1 g06276401
(1) Belt tensioner wheel
Table 2
Troubleshooting Test Steps Values Results
2. Spray Water on the Tensioner Wheel
A. Spray water on the belt tensioner wheel (1) to reduce the friction between the wheel and the belt.
B. Run the engine.
Noise
Result: The noise is still present.
Proceed to Test Step 3.
Result: The noise is no longer present. There maybe an issue with the tensioner.
Proceed to Test Step 4.
3. Condition of the Belt
A. Check for rubber debris from the belt around the refrigerant compressor.
B. Check the belt for worn patches.
Belt condition
Result: The alternator drive belts are worn or damaged.
Repair:Replace the belts. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install.
Result: The belts are in a good condition.
Proceed to Test Step 4.
Illustration 2 g06276469
Typical view of the 369-1255 Tensioner
(2) Arm
(3) Arm case stops
(4) Spring case
(5) Spring case stops
(6) Pulley
Table 3
Troubleshooting Test Steps Values Results
4. On-Engine Inspection of the Belt Tensioner
A. Leave the belt and tensioner installed. Determine if arm case stops (3) are contacting or very close to spring case stops (5).
B. Determine if the belt is tracking toward either side of pulley (6).
Inspection
Result: The arm case stops (3) are contacting or very close to spring case stops (5).
Repair: Check that the correct belt is installed. If necessary, replace the belt. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install.
Result: The witness mark created by the belt on the pulley is considerably wider than the belt or the belt is tracking away from the pulley center.
Repair: Inspect the system for misalignment of the pulleys.
Illustration 3 g06276750
Illustration 4 g06276753
(7) Locator pin
Table 4
Troubleshooting Test Steps Values Results
5. Remove the Belt and Tensioner for Inspection
A. Remove the belt. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install .
B. Use a suitable tool to move the tensioner arm over the full range of movement between stops (3) and (5).
C. Turn pulley (6). Check that the pulley turns smoothly and quietly.
Note: New bearings may not turn as freely as used bearings.
D. Ensure that the pulley surface (A) is parallel to the tensioner mounting surface (B). Refer to Illustration 3.
E. Remove the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
F. Check for evidence of metal-to-metal contact between arm (2) and spring case (4).
G. Inspect arm (2) and spring case (4) for cracks and damage.
H. Inspect arm case stops (3), spring case stops (5), and locator pin (7) for damage.
I. Inspect the tensioner for excessive bearing wear.
Result: The tensioner does not move smoothly over the full range.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: Pulley (6) does not spin smoothly or the pulley makes a noise when spinning.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: The pulley surface is not parallel to the mounting surface.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: There is evidence of metal-to-metal contact between (2) and spring case (4).
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: There is evidence of damage to any part of the belt tensioner.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt
The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.Problem
There have been instances of the 369-1255 Tensioner reported to be noisy. Most of the issues have been reported below 100 service hours.Solution
Do not operate or work on this product unless you have read and understood the instruction and warnings in the relevant Operation and Maintenance Manuals and relevant service literature. Failure to follow the instructions or heed the warnings could result in injury or death. Proper care is your responsibility.
Perform the following steps to identify the route cause of the issue.
Table 1
Troubleshooting Test Steps Values Results
1. Assembly Alignment
A. Visibly check the alignment between the following components:
•Refrigerant Compressor
• Belt Tensioner
• Alternator
• Idler Pulley
• Crank Pulley
Auxiliary assembly
Result: There is visible misalignment between the components
Repair: Remove and reinstall the components. Refer to Disassembly and Assembly for the correct procedure.
Result: The alignment is visibly correct.
Proceed to Test Step 2.
Illustration 1 g06276401
(1) Belt tensioner wheel
Table 2
Troubleshooting Test Steps Values Results
2. Spray Water on the Tensioner Wheel
A. Spray water on the belt tensioner wheel (1) to reduce the friction between the wheel and the belt.
B. Run the engine.
Noise
Result: The noise is still present.
Proceed to Test Step 3.
Result: The noise is no longer present. There maybe an issue with the tensioner.
Proceed to Test Step 4.
3. Condition of the Belt
A. Check for rubber debris from the belt around the refrigerant compressor.
B. Check the belt for worn patches.
Belt condition
Result: The alternator drive belts are worn or damaged.
Repair:Replace the belts. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install.
Result: The belts are in a good condition.
Proceed to Test Step 4.
Illustration 2 g06276469
Typical view of the 369-1255 Tensioner
(2) Arm
(3) Arm case stops
(4) Spring case
(5) Spring case stops
(6) Pulley
Table 3
Troubleshooting Test Steps Values Results
4. On-Engine Inspection of the Belt Tensioner
A. Leave the belt and tensioner installed. Determine if arm case stops (3) are contacting or very close to spring case stops (5).
B. Determine if the belt is tracking toward either side of pulley (6).
Inspection
Result: The arm case stops (3) are contacting or very close to spring case stops (5).
Repair: Check that the correct belt is installed. If necessary, replace the belt. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install.
Result: The witness mark created by the belt on the pulley is considerably wider than the belt or the belt is tracking away from the pulley center.
Repair: Inspect the system for misalignment of the pulleys.
Illustration 3 g06276750
Illustration 4 g06276753
(7) Locator pin
Table 4
Troubleshooting Test Steps Values Results
5. Remove the Belt and Tensioner for Inspection
A. Remove the belt. Refer to Disassembly and Assembly, Alternator Belt - Remove and Install .
B. Use a suitable tool to move the tensioner arm over the full range of movement between stops (3) and (5).
C. Turn pulley (6). Check that the pulley turns smoothly and quietly.
Note: New bearings may not turn as freely as used bearings.
D. Ensure that the pulley surface (A) is parallel to the tensioner mounting surface (B). Refer to Illustration 3.
E. Remove the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
F. Check for evidence of metal-to-metal contact between arm (2) and spring case (4).
G. Inspect arm (2) and spring case (4) for cracks and damage.
H. Inspect arm case stops (3), spring case stops (5), and locator pin (7) for damage.
I. Inspect the tensioner for excessive bearing wear.
Result: The tensioner does not move smoothly over the full range.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: Pulley (6) does not spin smoothly or the pulley makes a noise when spinning.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: The pulley surface is not parallel to the mounting surface.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: There is evidence of metal-to-metal contact between (2) and spring case (4).
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt Tensioner - Remove and Install.
Result: There is evidence of damage to any part of the belt tensioner.
Repair: Replace the belt tensioner. Refer to Disassembly and Assembly, Belt
Parts mount JOHNSON:
0303880
0303880 MOUNT, Rubber, upper front
20R69B, 20R70C, 25R69B, 25R70C, 33E69A, 33E69A, 33E70M, 33E70M, 40E71B, 40E72E, 40E73D, 40E74S, 40E75C, 40E76A, 6R69M, 6R70B, 6R71E, 6R72D, 6R73S, 6R74C, 6R75R, 6R76A, 6R77M, 6R78B, 6R79E, CD-25A, FD-22A, J40RSLR, J40RWCDB, J40RWCOM, J40RWCRA, RX-16M
0304801
0304801 MOUNT,Rubber,exhaust tube,upper front 5 INCH LONGER PARTS
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25R69B, 25R70C, 25R71S, FD-22A
0303879
0303879 MOUNT,Rubber,upper side
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25E77S, 25E78C, 25E79R, 25R69B, 25R70C, 25R71S, 35E76G, 35E77C, 35E78R, 35E79A, BJ20SEECB, BJ20SEEDA, BJ20SEEUM, BJ20SRECB, BJ20SREDA, BJ20SREUM, BJ25BAECM, BJ25BAEDR, BJ
0303881
0303881 MOUNT,Rubber,lower front
20R69B, 20R70C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25R69B, 25R70C, 25R71S, 33E69A, 33E69A, 33E70M, 33E70M, 40E71B, 40E72E, 40E73D, 40E74S, 40E75C, 40E76A, FD-22A, J40RSLR, J40RWCRA, RX-16M
0377582
0302405
0302405 MOUNT, Motor cover to powerhead
100ESL71A, 115ESL69E, 115ESL70D, 125ESL71C, 20R71S, 20R72R, 20R73A, 25E72R, 25E73A, 25E74M, 25E75B, 25E76E, 25R71S, 40E76A, 55ES69A, 60ES70B, 60ES71C, 85ESL69E, 85ESL70B, 85ESL71A, J40RSLR, TR-10R
0389600