Section 03-04E: Turbocharger, 7.3L Diesel Engine | 1996 F-250, F-350 and F-Super Duty Workshop Manual |
The turbocharger is supplied with pressurized oil from the engine's main oil gallery through a passage in the turbocharger pedestal assembly. Oil drains from the turbocharger through another passage in the turbocharger pedestal assembly back to the oil pan (6675). This design eliminates any need for external lubrication lines to the turbocharger.
The turbocharger pressurized lubricating oil is also used to actuate an exhaust back pressure warm-up system. Pressurized oil going to the turbocharger is routed to the exhaust back pressure actuator which is used to control a butterfly valve (exhaust back pressure control valve) on the outlet side of the turbine housing. This function occurs only during the cold weather warm-up cycle.
Split ring seals are installed at each end of the shaft between the bearing and the adjacent turbine or compressor wheel to prevent lubricating oil from entering the turbine and the compressor area.
Garrett TP-38 Turbocharger
| Item | Part Number | Description |
|---|---|---|
| 1 | — | Turbine Housing (Part of 6K682) |
| 2 | — | Exhaust Back Pressure Control Valve (Part of 6K682) |
| 3 | — | Compressor Housing (Part of 6K682) |
| 4 | 8287 | Clamp |
| 5 | 9C681 | Air Intake Hose |
| 6 | 1820052C92 | Air Intake Tube |
| 7 | 6K864 | Air Inlet Bracket |
| 8 | 6K889 | Compressor Manifold |
| 9 | — | Compressor Outlet (Part of 6K682) |
| 10 | — | Exhaust Inlet Flange (Part of 6K682) |
| 11 | — | Exhaust Back Pressure Control Linkage (Part of 6K682) |
| 12 | 6F089 | Exhaust Back Pressure Control Actuator |
| 13 | — | Exhaust Back Pressure Control Solenoid (Part of 6K682) |
| 14 | 6N639 | Turbocharger Pedestal Assembly |
| 15 | — | Exhaust Back Pressure Control Valve (Part of 6K682) |
Turbocharger and Induction System
| Item | Part Number | Description |
|---|---|---|
| 1 | 6K682 | Turbocharger |
| 2 | 6N640 | Turbocharger Exhaust Inlet Adapter Gasket |
| 3 | 8287 | Clamp (2 Required) |
| 4 | 9C681 | Air Intake Hose |
| 5 | 1820052C92 | Air Intake Tube |
| 6 | 1820056C2 | Compressor Inlet Duct (Pilot) Tube |
| 7 | 30841R1 | Compressor Inlet Duct (Pilot) Tube Screw |
| 8 | — | Breather Hose Elbow Clamp (Part of 1816030C2) |
| 9 | 1816030C2 | Breather Hose Elbow |
| 10 | 6K864 | Air Inlet Bracket |
| 11 | 6K854 | Turbocharger Exhaust Inlet Adapter |
| 12 | — | Turbocharger Oil Supply O-Ring (2 Required) (Part of 6K682) |
| 13 | — | Turbocharger Oil Drain O-Ring (2 Required) (Part of 6K682) |
| 14 | 6N639 | Turbocharger Pedestal Assembly |
| 15 | 8287 | Clamp (4 Required) |
| 16 | 1820075C1 | Intake Manifold Hose (2 Required) |
| 17 | 6K889 | Compressor Manifold |
| 18 | 9E436 | Turbocharger Compressor Outlet Seal |
| 19 | 8287 | Clamp |