Nissan RD engine
| Nissan RD engine | |
|---|---|
RD28 series 1 in a C33 Nissan Laurel | |
| Overview | |
| Manufacturer | Nissan Diesel |
| Production | 1985-2009 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 2.8 L (2,826 cc) |
| Cylinder bore | 85 mm (3.35 in) |
| Piston stroke | 83 mm (3.27 in) |
| Valvetrain | SOHC, 2 valves per cylinder |
| Combustion | |
| Turbocharger | With intercooler (RD28T and RD28ET) |
| Fuel system | |
| Fuel type | Diesel |
| Cooling system | Water-cooled |
| Output | |
| Power output | 94–145 PS (69–107 kW; 93–143 bhp) |
| Torque output | 18–29.3 kg⋅m (177–287 N⋅m; 130–212 lb⋅ft) |
| Chronology | |
| Predecessor | |
The Nissan RD engine series is the diesel version of the Nissan RB engine, using a single overhead cam, six-cylinder layout. It was the successor to the Nissan LD and SD six-cylinder engines and was joined by the six-cylinder Nissan TD engine.
From 1997 onwards, turbocharged versions were fitted with electronic fuel injection. The turbodiesel version is known as the RD28T (or RD28ET with electronic fuel injection) and were also fitted to the Nissan Safari (also known as the Nissan Patrol) off-road vehicle.
The engine block was similar to the RB30 engine except it had more material, was heavier and had an 85 mm bore vs the 86 mm bore of the RB30 and a 83 mm rather than 85 mm stroke. One issue is that the stronger vibrations from the diesel engine could loosen the crank/harmonic balancer bolt (originally from the RB) which in turn loosens or falls off, causing major engine damage. It is recommended to use thread locking fluid when installing.
The cylinder head was of a non-crossflow design, meaning that the exhaust and intake ports were on one side of the cylinder head.