1994 PCED OBDI-A | SECTION 20A: Diesel Diagnosis—7.3L IDI Engine |
| Engine Model | A-185, A-166 |
|---|---|
| Number of Cylinders | 8 |
| Configuration | OHV V8 |
| Bore | 104.39 mm (4.11 inch) |
| Stroke | 106.20 mm (4.18 inch) |
| Displacement | 7.3 Liters (444 cu inch) |
| Crankshaft Rotation (Viewed from Flywheel End of Engine) | Counterclockwise |
| Compression Ratio | 21.5:1 |
| Firing Order | 1-2-7-3-4-5-6-8 |
| Idle Speed (No Load)* | 650 rpm ± 50 rpm |
| Governor Speed (No Load) | 3660 ± 50 rpm |
| Governor Speed (Full Load Rated) | 3000 rpm |
| Timing (Dynamic) | 8.5 ± 2 Degrees BTDC |
| Injection Pump | Stanadyne DB-2 |
| Injection Nozzle | |
| Opening Pressure (New) | 13,100 ± 517 kPa (1,900 ± 75 psi) |
| Opening Pressure (Minimum) | 9,998 kPa (1,450 psi) |
| Crankcase Pressure-No Load (Maximum) | 20 kPa (6 in-H2O) @ 3000 rpm |
| Fuel Pressure (Filter Inlet) | 14 kPa (2 psi) @ idle |
| Fuel Pressure (Filter Outlet) | 7 kPa (1 psi) @ 3000 rpm |
| Fuel Pump Suction | 20 kPa (6 in. H2O) @ 3000 rpm |
| Fuel Return Line Pressure | 14 kPa (2 psi) @ 3000 rpm |
| Valve Lifter | 0 Valve Lash |
| Engine Lube Oil Pressure Low Idle, Minimum | 69 kPa (10 psi) |
| (Engine at Operating Temperature) | 276-482 kPa (40-70 psi) |
| Crankcase Capacity (Without Filter) | 8.5 L (9 qt.) |
| Crankcase Capacity (With Filter) | 9.5 L (10 qt.) |
| Thermostat Opening Temperature | 89°C (192°F) |