Section 03-03: Engine Cooling | 1997 F-250, F-350 and F-Super Duty Workshop Manual |
5.8L and 7.5L Engines
Removal
Remove screws retaining fan shroud (8146) to radiator (8005).
Remove four screws retaining clutch on water pump hub.
Pull fan clutch (8A616) and fan blade (8600) off water pump pilot and remove fan clutch, fan blade and shroud from vehicle.
Remove four screws and separate fan clutch from fan blade.
Installation
Position fan blade to fan clutch and attach with four screws. Tighten screws to 16-24 Nm (12-18 lb-ft).
Position fan clutch, fan blade and shroud in vehicle.
Position fan blade and fan clutch to water pump pulley (8509) and attach with four screws. Tighten screws to 16-24 Nm (12-18 lb-ft).
Install shroud. Tighten screws to 6-8 Nm (53-71 lb-in).

| Item | Part Number | Description |
|---|---|---|
| 1 | 8509 | Water Pump Pulley |
| 2 | 57632-S | Screw and Washer Assy, 5/16-18 x .62 Hex |
| 3 | 8600 | Fan Blade (5.8L) |
| 4 | 8600 | Fan Blade (7.5L) |
| 5 | 8A616 | Fan Clutch |
| 6 | 380288-S2 | Screw and Washer Assy, 5/16-24 x .88 Hex |
| A | — | 16-24 Nm (12-18 Lb-Ft) |
7.3L Diesel
| Description | Tool Number |
|---|---|
| Fan Clutch Nut Wrench | T93T-6312-B |
| Fan Clutch Pulley Holder | T94T-6312-AH |
Removal
Partially drain the engine cooling system. Refer to Cooling System Draining, Filling and Bleeding in the Cleaning and Inspection portion of this section.
Remove the upper radiator hose (8260).
Disconnect the coolant reservoir hose at radiator.
CAUTION: Fan clutch has right-hand thread. Remove by turning nut counterclockwise.
Remove the fan clutch, using Fan Clutch Nut Wrench T93T-6312-B and Fan Clutch Pulley Holder T94T-6312-AH, setting fan clutch in fan shroud.

Remove the radiator fan shroud screws.
Remove the radiator fan shroud and fan clutch.
Remove the bolts attaching the fan blade to the fan clutch.
Installation
Install the bolts attaching the fan blade to the fan clutch. Tighten to 16-24 Nm (12-18 lb-ft).
Install the radiator fan shroud and fan clutch.
Install the radiator fan shroud screws.
CAUTION: Fan clutch has right-hand thread. Install by turning nut clockwise.
Install the fan clutch, using Fan Clutch Nut Wrench T93T-6312-B and Fan Clutch Pulley Holder T94T-6312-AH.
Fan Blade and Clutch Assembly, 7.3L Diesel Engine

Install the coolant reservoir hose to radiator.
Install the upper radiator hose.
Refill the engine cooling system as described in Cooling System, Draining, Filling and Bleeding in the Cleaning and Inspection portion of this section.