850399 1 Mercruiser PUMP ASSEMBLY, Water, Water

Table 1
Required Tools
Tool Part Number Part Description Qty
A 370-8376 Capping 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.
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.
Turn the fuel supply to the OFF position.
Turn the battery disconnect switch to the OFF position.
Drain the secondary filters. Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Illustration 1 g03390360
Make temporary identification marks on all the tube assemblies in order to show the correct position of the tube assemblies.On some engines the tube assemblies on the fuel filter assembly may be in a different location.
Place a suitable container below the fuel filter base in order to catch any fuel that might be spilled.
Remove banjo bolt (6) and remove sealing washers (5) (not shown).
Use Tooling (A) in order to plug tube assembly (11). Use Tooling (A) in order to cap the port of connection (4).
Remove banjo bolt (8) and remove sealing washers (7) (not shown).
Use Tooling (A) in order to plug tube assembly (12). Use Tooling (A) in order to cap the port in fuel filter base (1).
If necessary, remove connection (4) from fuel filter base (1). Remove O-ring seal (3) (not shown).
Remove secondary filters (9) from canisters (10). Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
Remove bolts (2) from fuel filter base (1). Remove the fuel filter base from the mounting bracket. Note: Note the position of different length bolts.
Illustration 2 g03390403
If necessary, follow Step 13.a through Step 13.b in order to remove fuel filter bracket (13).
Remove bolts (15) from fuel filter bracket (13).
Remove fuel filter bracket (13) from inlet manifold (14). Installation Procedure
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.
Illustration 3 g03390403
Ensure that fuel filter bracket (13) is clean and free from damage. If necessary, replace the complete fuel filter bracket.
If necessary, follow Step 2.a through Step 2.c in order to install fuel filter bracket (13).
Position fuel filter bracket (13) onto inlet manifold (14)
Install bolts (15) to fuel filter bracket (13).
Tighten bolts (15) to a torque of 22 N m (195 lb in).
Illustration 4 g03390360
Position fuel filter base (1) onto the fuel filter bracket. Install bolts (2). Tighten the bolts to a torque of 44 N m (32 lb ft).
If necessary, install new fuel filters (9) to canisters (10). Refer to Operation and Maintenance Manual, "Fuel System Secondary Filter - Replace" for the correct procedure.
If necessary, follow Step 5.a through Step 5.c to install connection (4) to fuel filter base (1).
Install a new O-ring seal (3) (not shown) to connection (4).
Install connection (4) to fuel filter base (1).
Tighten connection (4) to a torque of 21 N m (186 lb in).
Ensure that the plastic tube assemblies are installed in the original positions. Failure to connect the plastic tube assemblies to the correct ports will allow contamination to enter the fuel system. Serious damage to the engine will result if contaminated fuel enters the fuel system.
Install a new sealing washer (7) (not shown) onto banjo bolt (8).
Remove plug from tube assembly (12) and install banjo bolt (8). Install remaining sealing washer (7) (not shown) onto banjo bolt (8).
Install banjo bolt (8) to fuel filter base (1).
Tighten banjo bolt (8) to a torque of 21 N m (186 lb in).
Install a new sealing washer (5) (not shown) onto banjo bolt (6).
Remove plug from tube assembly (1211) and install banjo bolt (8). Install remaining sealing washer (5) (not shown) onto banjo bolt (6).
Install banjo bolt (6) to connection (4).
Tighten banjo bolt (6) to a torque of 21 N m (186 lb in).
Use Tooling (A) in order to . Use Tooling (A) in order to cap the ports in fuel filter base (1).
Remove the plugs from the tube assemblies. Remove the caps from the ports in the fuel filter base.
Turn the fuel supply to the ON p