The 4-5 series trucks of the P, R, and G models are equipped with the Scania DC9 engine, which has a 4-valve cylinder head in a variety of modifications. Compared to its predecessor, the DSC9, which is Euro 2 compliant, the DC 9 also satisfies stricter environmental requirements.
Classics of the genre, Scania in-line engines have a bright future in terms of Scania engine development. Nearly every type of long-haul tractor, truck, and Scania special equipment has an inline diesel engine.
Specifications
| Manufacturer | Scania |
| Also called | DC 9 |
| Cylinder block alloy | cast iron |
| Fuel system | direct injection |
| Configuration | inline |
| Number of cylinders | 6 |
| Piston stroke, mm | 144 |
| Cylinder bore, mm | 115 |
| Compression ratio | 16 |
| Displacement, cc | 9000 |
| Power output, hp | 260-310/2100 |
| Torque output, Nm / rpm | 1337/1500 |
| Fuel type | diesel |
| Euro standards | Euro 3 |
| Weight, kg | 890 (dry) |
DC 9 motor diagram
- Turbocharger;
- Oil cooler;
- Oil filler neck;
- Engine number, stamp on the cylinder block;
- Oil filter;
- Coolant pump;
- Coolant drain plug;
- Centrifugal oil filter;
- Type notation;
- Fuel filter;
- Fuel pump with hand pump:
- Starter;
- Oil dipstick;
- Oil plug;
- Engine control unit.
An electronic control system (EMS, Engine Management System) is installed in the engine. In every operating condition, this engine management system guarantees that the right amount of fuel is supplied to every cylinder at the right time.
A control unit and several sensors make up the engine management system, which offers the following data:
- engine speed;
- charge air temperature;
- charge air pressure;
- coolant temperature;
- oil pressure;
- activating the throttle valve.
The system uses this data to determine the proper fuel volume and injection timing for each injector while accounting for the particular operating conditions.
Explanation of DC 09 marking
| DC | Diesel engine with turbocharger and air-cooled intercooler. |
| 09 | Total working volume, dm3. |