13436 Mercruiser NUT, WATER PUMP STUDS (5/16-24)

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 Systems Operation, Testing and Adjusting Manual, "Cleanliness of Fuel System Components" for detailed information on the standards of cleanliness that must be observed during ALL work on the fuel system.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Note: Put identification marks on all hoses, on all hose assemblies, on wires and on all tube assemblies for installation purposes. Plug all hose assemblies and tube assemblies. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.Note: Some engines do not have a fuel supply to the electronic control module.
Turn the battery disconnect switch to the OFF position.
If the electronic control module is equipped with a fuel supply, turn the fuel supply to the OFF position.
Illustration 1 g01271315
Typical example
Cut cable strap (3). Unscrew bolt (6) that secures machine wiring harness (2) to electronic control module (5). Disconnect the machine wiring harness from the electronic control module.
Cut cable straps (1), (9) and (10). Unscrew bolt (8) that secures engine harness (7) to electronic control module (5). Disconnect the engine harness from the electronic control module.
If the electronic control module is equipped with a fuel supply, disconnect plastic tube assembly (4) and plastic tube assembly (11). Note: If the tube assemblies have quick fit connections, ensure that the connections are clean before the tube assemblies are plugged.
Illustration 2 g01807973
Typical example
Remove bolts (20) and remove the assembly of the electronic control module. Note the position of any brackets that are secured by bolts (20). Note the orientation of the electronic control module.
Remove bolts (20) and remove washers (18) from electronic control module (5). Note the position of the ground strap for the electronic control module.
If necessary, follow Step 8.a through Step 8.e in order to disassemble the electronic control module.
Remove isolation mounts (22) and spacers (23).
Remove connectors (13). Remove O-ring seals (12) from the connectors.
Remove bolt (18) and remove bracket (19) for the engine wiring harness. Note the orientation of the bracket.
Loosen bolt (16) and remove bracket (17) from the engine wiring harness. Note the orientation of the bracket.
Remove bolt (14) and remove bracket (15) for the machine wiring harness. Note the orientation of the bracket. Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 247-5377 Torque Wrench 1
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 3 g01807973
Typical example
If necessary, follow Step 3.a through Step 3.e in order to assemble the electronic control module.
Install new O-ring seals (12) to connectors (13). Install connectors (13) to electronic control module (5). Tighten the connectors to a torque of 18.5 N m (13.6 lb ft).
Position bracket (17) on electronic control module (5). Ensure that the bracket is correctly oriented. Install torx screw (16). Tighten the torx screw to a torque of 7 N m (62 lb in).
Position bracket (19) on electronic control module (5). Ensure that the bracket is correctly oriented. Install bolt (18). Tighten the bolt to a torque of 9 N m (80 lb in).
Position bracket (15) for the machine wiring harness on electronic control module (5). Ensure that the bracket is correctly oriented and install bolt (14). Tighten the bolt to a torque of 9 N m (80 lb in).
Install isolation mounts (22) and spacers (23) to electronic control module (5).
Install washers (21) and bolts (20) to electronic control module (5). Note: Ensure that the ground strap for the electronic control module is clamped between the washer and the appropriate bolt.
Install the assembly of the electronic control module to the mounting bracket . Ensure that any brackets that are secured by bolts (20) are installed in the correct position. Tighten bolts (20) to a torque of 22 N m (16 lb ft). Note: Ensure that the electronic control module is correctly oriented. Ensure that the ground strap is not strained as the bolt is tightened.
Illustration 4 g01271315
Typical example
If the electronic control module is equipped with a fuel supply, connect plastic tube assembly (4) and tube assembly (11) to electronic control module (5). Note: If the tube assemblies have quick fit connections, ensure that the connections are clean before the tube assemblies are connected.
Connect engine wiring harness (7) to electronic control module (5). Use Tooling (A) to tighten bolt (8) to a torque of 5 N m (44 lb in). If the engine is equipped with a diagnostic connection, install the diagnostic connection to the support clip. Note: Care must be taken in order to avoid damage to the connector pins during installation of the harness.
Position the assembly of the engine wiring harness onto bracket (15), bracket (17) and bracket (19). Use new cable straps (1), (9) and (10) in order to secure the harness assembly to the brackets.
Connect machine wiring harn