854054001 Mercruiser HOSE, Vent

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     370-8376     Cap Kit     1    
Ensure that all adjustments and repairs that are carried out to the fuel system are performed by authorized personnel that have the correct training.Before beginning ANY work on the fuel system, refer to Operation and Maintenance Manual, "General Hazard Information and High Pressure Fuel Lines" for safety information. Refer to System Operation, Testing, and Adjusting, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
Turn the battery disconnect switch to the OFF position.
Turn the fuel supply to the OFF position.
Illustration 1 g02524980
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Illustration 2 g02524984
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Cut all cable straps that attach the wiring harness assemblies to electronic control module (6) .Note: Note position of cable straps that attach the wiring harness assemblies to the electronic control module.
Remove bolt (2). Loosen Allen head bolt (3) that secures engine wiring harness assembly (4) to electronic control module (6). Disconnect the engine wiring harness assembly from the electronic control module.
Remove bolt (7). Loosen Allen head bolt (5) that secures engine wiring harness assembly (9) to electronic control module (6). Disconnect the Original Equipment Manufactures (OEM) wiring harness assembly from the electronic control module.
Position harness assembly (9) and harness assembly (4) away from electronic control module (6) .
Make temporary identification marks on fuel line (1) and fuel line (8) in order to show the correct position of the fuel lines.
Place a suitable container below electronic control module (6) in order to catch any fuel that might be spilled.
Disconnect fuel line (1) and remove the fuel line from fuel line clips. Use Tooling (A) to plug fuel lines (1). Position the fuel line away from the electronic control module.
Use Tooling (A) to cap connection (10) on the electronic control module.
Remove fuel line (8) and drain the fuel from electronic control module (6). Use Tooling (A) to plug fuel lines (8) .
Use Tooling (A) to cap connection (11) on the electronic control module.
Illustration 3 g02524986
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Loosen bolts (16) for electronic control module (6) .
Remove bolts (16) and remove washers (14) and washer (15). Take care to prevent damage to ground connection (13) .Note: Support the weight of the electronic control module as the remaining bolts are removed.
Remove bracket (12) and remove electronic control module (6) from mounting bracket for the electronic control module.Note: Note the orientation of the electronic control module.
Illustration 4 g02163736
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Illustration 5 g02163735
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If necessary, follow Step 16.a through Step 16.c in order to disassemble electronic control module (6) .
Remove connection (10) and remove O-ring seal (20). Use Tooling (A) to cap connection (10) and plug electronic control module (6) .
Remove connection (11) and remove O-ring seal (21) (not shown). Use Tooling (A) to cap connection (11) and plug electronic control module (6) .
Remove isolation mounts (17), isolation mounts (18), and limit sleeves (19) from electronic control module (6) .Installation Procedure
If a replacement electronic control module is installed, the module must be programmed with the correct information. Refer to Troubleshooting, "Replacing the ECM" and refer to Troubleshooting, "Flash Programming" for the correct procedure.
Ensure that the electronic control module is clean and free from damage. If necessary, replace the electronic control module.
Illustration 6 g02163736
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Illustration 7 g02163735
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If necessary, follow Step 3.a through Step 3.e in order to assemble electronic control module (6) .
Remove the cap from connection (10). Install a new O-ring seal (20) to the connection.
Remove the cap from connection (11). Install a new O-ring seal (21) (not shown) to the