The Nissan RD28 is a robust, reliable 2.8-liter inline-six diesel engine known for its durability and suitability for off-road and heavy-duty use. It features a cast-iron block and an aluminum cylinder head and was introduced in the late 1980s for models like the Nissan Patrol.The RD28 was available in both naturally aspirated and turbocharged versions, with the turbo (RD28T) offering higher power output.
Key Features
Engine Type:Inline-6 cylinder diesel
Displacement:2.8 liters (2771 cc)
Block:Cast-iron for durability
Cylinder Head:Aluminum
Camshaft:Belt-driven overhead camshaft (SOHC)
Construction:Robust and durable for rugged conditions
Applications:Widely used in the Nissan Patrol and other Nissan models for off-road and commercial applications
Variants
RD28 (Naturally Aspirated):A base version focused on utility and longevity.
RD28T / RD28TI (Turbocharged):A more powerful variant with a turbocharger, providing increased horsepower and torque.
Reputation
The RD28 gained a reputation for its strong construction, reliability, and ability to handle harsh conditions, making it a popular choice for enthusiasts and commercial users in its era.
The Nissan RD28 is a 2.8-liter (2,825 cc), 6-cylinder, overhead-camshaft, diesel engine, known for its use in the Nissan Patrol and Laurel, featuring a cast-iron block, an alloy cylinder head, and a belt-driven OHC. Power output varied, with the RD28ETi2 (a turbocharged version) producing around 145 PS (107 kW). Key specifications include a bore center, steel forging crankshaft, and a belt-driven camshaft.
Key Features
Configuration:6-cylinder, inline
Displacement:2.8-liter (2,825 cc)
Valvetrain:Overhead camshaft (OHC)
Block Material:Cast iron
Cylinder Head:Alloy
Crankshaft:Steel forging
Fuel System:Diesel
Performance (RD28ETi2 example)
Power:145 PS (107 kW; 143 bhp) at 4,000 rpm
Torque:26.6 kg⋅m (261 N⋅m; 192 lb⋅ft) at 2,000 rpm
Applications
Nissan Patrol:Used in models like the GQ and GU Y61.
Nissan Laurel:Featured in the Q-SC33 Medalist Limited S variant.
Nissan Cedric:Also used in the JDM (Japanese Domestic Market) Cedric.
Common Technical Aspects & Maintenance
Turbocharger:Often a point of wear; may require inspection for shaft play and replacement to avoid reduced power or smoke.
Oil Leaks:Valve cover gaskets can leak, causing engine misfires.
Filters & Injectors:Regular cleaning and replacement of air filters and maintenance of fuel injectors are important for performance.
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