Datsun sidevalve engine
Nissan's sidevalve engines were based on the Austin 7 engine, with which they shared the 76 mm (2.99 in) stroke. The series began with a 495 cc iteration for the 1930 Datson Type 10 and ended with the 860 cc Type 10 engine which was built until 1964 for light commercial vehicles. Later versions were called the B-1, before being replaced in 1957 by the OHV Nissan C engine that was essentially a de-stroked version of another Austin design this time the BMC B-Series.
| Datsun Type 7/10 engine | |
|---|---|
Type 7 engine from a 1939 Datsun Type 17 | |
| Overview | |
| Manufacturer |
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| Layout | |
| Configuration | Naturally aspirated Inline-4 |
| Displacement | 0.5–0.9 L; 30.2–52.5 cu in (495–860 cc) |
| Cylinder bore |
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| Piston stroke |
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| Valvetrain | Side valve |
| Compression ratio | 8.0:1 |
| Combustion | |
| Fuel system | Single Carburetor |
| Fuel type | Petrol |
| Cooling system | Water-cooled |
| Output | |
| Power output | 10–27 PS (7–20 kW) |
| Torque output | 48 N⋅m (35 lb⋅ft) (Type 10) |
| Chronology | |
| Successor | Nissan C engine OHV |
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