B3HI-POWER engine — DW 1.3 (1.3L)
1.3L · 72 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | B3 |
| Capacity | 1323 cc |
| Idle speed | 700 - 800 rpm |
| Inlet | 0.30 mm |
| Exhaust | 0.30 mm |
| Normal | 14.8 bar |
| Minimum | 10.4 bar |
| Differential limit between cylinders | 2.0 bar |
| Oil pressure | 3.0-4.0 / 3000 bar/rpm |
Engine (petrol)
| Fuel system (make and type) | Mazda |
| Idle speed adjustment screw | A |
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 10 ± 1 / 750 °/rpm |
| Ignition coil resistance, secondary | 20000 - 31000 ohms |
| Spark plugs (make and type) | NGK BKR5E-11 |
| Spark plugs (make and type) | NGK BKR6E-11 |
| Spark plugs (make and type) | Champion RC10YC4 |
| Spark plugs (make and type) | Champion RC8YC4 |
| Spark plug gap | 1.0 - 1.1 mm |
| Fuel pump pressure | 4.8 - 6.5 bar |
| Injection pressure/system pressure | 2.1 - 2.6 bar |
| Injection pressure/system pressure | 2.6 - 3.2 bar |
| Spark plug cable resistances | 1 / 6 - 15 2 / 5 - 14 3 / 4 - 10 4 / 4 - 10 kohms |
| CO exhaust gas | < 0.5 / 700 - 800 %/rpm |
| Fast-idle speed | 2400 - 2600 rpm |
| CO at fast-idle speed | < 0.3 % |
| HC | < 200 ppm |
| Lambda | 0.97 - 1.03 |
| Oil temperature during test | > 80 °C |
| Alternative method (Germany only) | E3 |
| CO exhaust gas | < 0.5 % |
Cooling system
| Cap pressure | 0.75 - 1.05 bar |
| Thermostat opens at | 87 - 90 °C |
Electrical
| Battery | 36 Ah |
| Alternator | 70 A |
Capacities
| Engine sump, incl. filter | 3.2 l |
| Gearbox refill | 2.7 l |
| Cooling system | 6 l |
| Air-conditioner refrigerant | 650 g |
| Air-conditioner refrigerant | 600 g |
Torque settings
| Cylinder head bolts — Stage 1 | 38 - 42 Nm |
| Cylinder head bolts — Stage 2 | 76 - 81 Nm |
| Front hub | 157 - 235 Nm |
| Rear hub | 167 - 215 Nm |
| Wheel nuts | 87 - 117 Nm |
| Spark plugs | 15 - 22 Nm |
| Oil plug | 30 - 41 Nm |
| Manual transmission drain plug | 40 - 58 Nm |
Emissions
| Emission code | 70/220*1996/69 |
| Emission standard | Euro 2 |
| CO2 average | 187 g/km |
| CO | 0.277 - 0.475 g/km |
| HC NOx | 0.160 - 0.224 g/km |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.