Engine General: B5254T2
General
- Based on the B5244T3
- There have been a number of changes to the engine, resulting in improved performance and lower emissions
- A modified length of stroke results in a cylinder capacity of 2521 cm3 .
- Meets the emissions requirements for EURO 2005 (EURO 4) and ULEV II
- The maximum torque of 320 Nm is reached at 1500 rpm
- Maximum power is 154 kW (210 hk) at 4800 rpm
- Engine management system Bosch ME 7.01
- The start sequence is based on the Wide Range concept.
General, continued
Crankshaft, crankshaft bearing
Stroke of 93.2 mm. Forged. Weight: 21559 grams. Connecting rod pins: Ø 50.00 mm. Main bearing journals: Ø 65.00 mm.
Both the upper and lower crankshaft bearings are aluminum. The upper bearing has a lubrication hole.
Connecting rods, connecting rod bearing
Forged connecting rods with split covers. Length center to center = 145 mm. Weight = 634 grams.
Both the upper and lower bearings are aluminum.
Pistons
Graphite coated pistons.
Diameter/length gudgeon pin = 21 mm/60 mm.
Cylinder head, camshafts
Cylinder head with CVVT (Continuous Variable Valve Timing) for both the intake and exhaust camshaft.
Change over angle CVVT:
- intake = 50 crankshaft degrees
- exhaust = 30 crankshaft degrees.
Other
Flame trap with labyrinth.
Modified manifold providing improved gas flow and more exhaust energy to the turbine in the turbocharger (TC). Gives a quicker turbocharger response.
The camshaft toothed belt is reinforced to increase service life. The belt tensioner has a new gasket to ensure an optimal seal.