Assembly overview
Engine and its devices
Original technical data from the book, arranged in the existing form of the site suitable for reading, printing and PDF.
d) Engine and its devices
Engine
| Data | Value |
|---|---|
| Type | with L-head and standing valves |
| Number of cylinders | 4 |
| Cylinder diameter | 79.375 mm (3 1/8 in) |
| Piston stroke | 111.125 mm (4 3/8 in) |
| Working volume | 2199 cm³ (134.2 cu. in.) |
| Degree of compression | 6,48 : 1 |
| Compression when starting the engine (185 rpm) | 7.73 atm (110 psi) |
| Engine Brake Power at 4000 RPM — Willys Model MB | 60 hp |
| Engine Brake Power at 4000 RPM - Ford Model GPW | 54 hp |
| Engine torque at 2000 rpm | 14.52 mkg (105 ft/lb) |
| Camshaft drive | by chain or sprocket |
| Lifter-to-valve clearance — on intake valves | 0.356 mm (0.014 in) |
| Lifter-to-valve clearance — on exhaust valves | 0.356–0.406 mm (0.014–0.016 in) |
Fuel supply device
| Data | Value |
|---|---|
| Fuel tank volume | 56.78 lit (15 gal) |
| Fuel filter — make and model | AC 1595848 |
| Fuel purifier — typ | T-2 |
| Fuel pump — make | AC |
| Fuel Pump — Model | 1538312 |
| Fuel pump — typ | membrane |
| Normal pump pressure at 1800 rpm | 0.32 atm (4.5 psi) |
| Air cleaner — brand | Oakes |
| Air cleaner — model | 613300 |
| Carburetor — make | Carter |
| Carburetor — model | 539 S or 698 S |
| Carburetor — typ | WO |
| Propellant — type | gasoline motor 70/72 Oct. |
| Fuel — consumption | 11.8 liters when driving in 3rd gear with a direct transfer drive distributor |
Lubrication device
| Data | Value |
|---|---|
| Oil pump — typ | rotating |
| Factory number (vehicles with camshaft drive by chain) | WO-637636 or FM-GPW 6600 |
| Serial Number (Vehicles with Gear Drive Camshaft) | WO-641046C |
| Oil pressure when the engine is idling | 0.70 atm (10 psi) |
| Oil pressure at normal speeds | 2.81–3.51 atm (40–50 psi) |
| Oil Pressure Gauge — Factory Number | WO-A8190 or FM-GPW9273 |
| Oil Cleaner — Factory Number | WO-A1280 or FM-GPW18660A |
Cooling device
| Data | Value |
|---|---|
| Cooling device volume | 10.4 lit (11 qt) |
| Water pump — typ | centrifugal |
| Water pump — drive | using the fan drive belt |
| Water pump — bearings | ball |
| Fan Drive Belt — Typ | wedge "V" type |
| Fan Drive Belt — Length | 1121 mm (44 1/8 in) |
| Fan Drive Belt — Width | 17.5 mm (11/16 in) |
| Fan Drive Belt - V Cut Angle | 42° |
Ignition device
| Data | Value |
|---|---|
| Firing order | 1-3-4-2 |
| Current voltage | 6 or 12 volts |
| Induction coil — brand | Auto-Lite |
| Induction Coil — Model | IG-4070-L or IG-6009 |
| Induction coil — voltage | 6–8 or 12 V |
| Induction coil — power when the engine is not running | 5 A at 6.4 V |
| Induction coil — power when the engine is idling | 2,5 A |
| Ignition distributor (assembly) — make | Auto-Lite |
| Ignition distributor (assembly) — model | IAD-4008 or IGC-4705 |
| Pre-ignition regulator type | centrifugal |
| Direction of rotation | counterclockwise |
| Switch contact gap | 0.508 mm (0.020 in) |
| Switch hammer spring tension | 482–567 g (17–20 oz) |
| Capacitor capacity | 0.18–0.26 mfd |
| Spark plugs — model | AN-7 |
| Spark plugs — dimension | 14 mm |
| Spark plugs — gap between electrodes | 0.76 mm (0.030 in) |
| Ignition switch — make | Douglas |
| Ignition Switch — Model | No. 6282 |
| Conductors — Primary | No. 14 |
| Conductors — Secondary | No. 16 |