Engine System

Engine
2.5 and 3.0 Litre Engines
The 2.5 and 3.0 Litre engines consists of:
- A six cylinder 60° V configuration liquid cooled aluminum cylinder block with dry steel liners.
- Aluminium pistons with cut-outs in the piston crown to clear the valve heads for any available combination of camshaft profile and valve phasing.
- Two aluminum cylinder heads with square squish chambers.
- Two steel overhead camshafts per bank.
- Four valves per cylinder.
- Mechanical tappets and top mounted phosphate coated cast iron shims.
- Continuous variable camshaft timing (VCT) of the inlet camshafts.
- Two silent timing chains with one hydraulic tensioner per chain.
- Magnesium alloy camshaft covers with rubber seals.
- A variable intake system containing two electrically controlled intake manifold tuning valves.
- Plastic lower intake manifold with integral fuel rail and injectors.
- Aluminium timing cover which accommodates the crankshaft front oil seal.
- An oil pump mounted around the crankshaft.
- An aluminum bed plate.
- An aluminum oil pan.
- A steel crankshaft.
- Fracture-split connecting rods in sintered-forged steel.
- A single, six ribbed vee belt drives the front end accessories.
- A water pump belt pulley mounted directly to the exhaust camshaft of the left-hand cylinder head.
- A single, three ribbed vee belt which drives the water pump.
- A water pump mounted on the rear of the left-hand cylinder head.
- An advanced engine management system incorporating electronic throttle control.
The unit meets the requirements of the CARB OBDII USA legislation.
The engine code and serial number is located on the left-hand side of the bed plate near the oil cooler assembly.