HomeCumminsR2.8 Engine (ISF2.8)

Cummins R2.8 Engine (ISF2.8) Review

R2.8 Engine (ISF2.8)

The R2.8 turbo-diesel engine is the ISF2.8 four-cylinder diesel engine, the smallest and lighter engine out of the ISF engine family. The Cummins ISF2.8 is the modern engine that combines two main qualities - the power and compactness. That is the optimum choice of a power unit for light commercial vehicle applications such as pickups, trucks, vans, utility vehicles.

The Cummins R2.8 engine has cast iron cylinder block with sleeves, which could be replaced. That results in less material consumption and higher strength. The simple and cheap material provides low cost, reliability and repair possibility. The ISF2.8 has cast iron cylinder head also. There are four valves per cylinder, the chain-driven single overhead camshaft, and the fuel injection nozzles in the middle of each cylinder. The camshaft actuates valves by rocker arms (short ones are for intake valves and long - for exhaust valves). All valves are made of heat-resistant steel with chrome plated stem, have the same design, but are not interchangeable. The timing chain and tensioner are located on the flywheel side. The chain does not require maintenance for the entire life of the engine.

The engine has the high-end technology fuel system - electronically controlled Common Rail fuel injection. The high-pressure fuel pump is mounted on the front end of the engine. It is driven by camshaft through the gear. The ISF2.8 has turbocharger HE 200 WG without an intercooler. The engine is equipped with start-up relief devices at low temperatures. An electric spiral is provided for heating the air in the intake manifold.

Engine Specs

Columbus, Indiana; China
Production years
Cylinder block material
Cast Iron
Cylinder head material
Cast Iron
Fuel type
Fuel system
Common rail direct injection
Number of cylinders
Valves per cylinder
Valvetrain layout
Bore, mm
94.0 (3.70 in)
Stroke, mm
100.0 (3.94 in)
Displacement, cc
2,781 (171 cu in)
Type of internal combustion engine
Four-stroke, turbocharged
Compression Ratio
Power, hp
107-160 (80-120kW)/ 3,600
Torque, lb ft
206-265 (280-360 Nm)/ 1,500-3,000
Engine weight
214 kg (503 lbs)- dry weight
Firing order
Engine oil weight
SAE 15W-40
Engine oil capacity, liter
5.0 - oil pan;
0.436 - oil filter;
1.0 - one mark on the engine oil dipstick.
Oil change interval, mile
12,000 (20,000 km)/12 months
Foton Tunland pickup, GAZelle NEXT, commercial vehicles.

Cummins R2.8, ISF2.8 Engine Problems and Reliability

The ISF2.8 is built and assembled in China. Cummins says what the ISF2.8 engine has 300,000 miles (500,000 km) longevity. But in reality, this engine has a terrible reputation on the Asian market because of low-quality assembling and materials. The most common failure of this engine is the quick tearing of the cylinders. As a result, the much oil consumption. The next is the connecting rod bearings failure which damaging the crankshaft. The engine easily overheats. There is a high risk of coolant penetration inside the cylinders. The list goes on and on. The ISF 2.8 engine meets Euro 3, Euro 4 emission standards, depends on some modifications.

The R2.8 is built in the Cummins factory in Columbus, Indiana (500 engines in 2017) and only carries a 90-day warranty. They are using engine blocks machined from Cummins’s Chinese plant. The crate R2.8 engine meets EPA’s Tier 0 (LDT 1 and 2) and Tier 1 emissions standards. In this case, it is suitable only for 1999 or earlier year car/truck models.

Share with friends: