LR3/Disco 3
Engine
External View
GENERAL
The V8 petrol engine is a 4.4 litre, 8 cylinder, 90 degrees 'Enclosed' V unit, with 4 valves per cylinder, operated by two
overhead camshafts. The engine emissions comply with ECD3 (European Commission Directive) and US Federal Tier2
Bin 8 legislative requirements and employs catalytic converters, electronic engine management control, positive
crankcase ventilation and exhaust gas re-circulation to limit the emission of pollutants. The cooling system is a low
volume, high velocity system. The Engine Control Module (ECM) controls the fuel injection system.
The cylinder block is of aluminium alloy construction with cast iron liners and a cast aluminium bedplate bolted to the
bottom of the block to improve lower structure rigidity. The cylinder heads are cast aluminium with thermo-plastic
camshaft covers. The single-piece oil sump is also cast aluminium. The fabricated stainless steel twin skin exhaust
manifolds are unique for each cylinder bank and a moulded plastic acoustic cover is fitted over the upper engine to
reduce engine-generated noise.
Engine Structure
Published : Oct 22, 2004
