Technology
There are several forms of this engine.
The first is a non intercooled, mechanically controlled fuel-injection system. This version is available in Rover 200 and Rover 400 models and the model designation ends in "D", i.e. SD, SLD etc., etc.
The second is intercooled and has an electronically controlled fuel-injection system. This version is available in Rover 200, Rover 400 and Rover 600 models. The model designation ends in "Di", i.e. SDi, SLDi etc., etc.
The last and most recent engine is intercooled and also has an electronically controlled injection system which is slightly more advanced and produces more torque but the same power output as earlier intercooled models. This is the version that is used in the Rover 25, Rover 45, MG ZR, and MG ZS.
All versions use Bosch fuel-injection equipment of various designs. An unusual feature is that the injector pump is driven by a toothed belt from the 'rear' end of the overhead camshaft, itself driven at the 'front' end by another toothed belt connected to the crankshaft.
The engine is extremely environmentally friendly in terms of its emissions. It is quiet in operation owing to its two-stage fuel injection & ECU controlling fuel for most models and timing for them all. The engine currently satisfies ECD III derogated Diesel emissions legislation when installed with an appropriate specified oxidation catalyst.
Sensors around the engine constantly give feedback to the ECU regarding injection timing, engine speed, load, fuel and coolant temperature, boost pressure etc. to ensure that optimum running conditions are maintained.
The basic engine is a conventional 4-cylinder with 2 valves per cylinder operated by a single overhead camshaft and hydraulic tappets.
The block is made of cast iron with aluminum alloy cylinder head and sump. An AlliedSignal GT15 turbocharger supplies boosted air. A fully modulated, either air- or water-cooled exhaust gas recirculation (EGR) system is incorporated into the intake/exhaust system.
All accessories (PAS, aircon, water pump, vacuum pump, alternator) are all driven off a single poly-vee-belt drive with autotensioner. Camshaft and injection pump drives are via two multi-toothed belts with either automatic or manual tensioners.
The Land Rover Td5 engine, a 2.5-litre, 5-cylinder turbodiesel used in the Discovery and the Defender had the same bore/stroke dimensions as the L series and used the same pistons, connecting rods and crankshaft dimensions. However, the Td5 was not simply a 5-cylinder L series. It used Lucas electronic unit injection, instead of the L series' direct-injection system, as well as a through-flow cylinder head and a very different ancillary equipment layout. The Td5 had been developed by the Rover Group under the codename 'Project Storm', which was originally to develop a replacement range of turbodiesels to replace the L series, with 4-, 5-, and 6-cylinder engines of 2, 2.5, and 3 litres respectively. When the Rover Group was taken over by BMW, they brought their own range of diesels which rendered the 2-litre and 3-litre Storm engines unnecessary. Only the Td5 entered production as this was the only diesel engine of BMW or Rover that would fit lengthwise in the Discovery and Defender with sufficient power output and had the then up-to-date direct-injection system.
The Austin Maestro is a five-door hatchback small family car that was produced from 1982 to 1986 by British Leyland, and from 1986 until 1994 by Rover Group, as a replacement for the Austin Maxi and Austin Allegro, with the van version replacing the corresponding van derivative of the Morris Ital. The car was produced at Morris' former Oxford plant, also known as Cowley, with 605,000 units sold. Today, the redeveloped factory builds the BMW Mini. An MG-branded performance version was sold as the MG Maestro from 1983 until 1991.
The Ford Duratorq engine, commonly referred to as Duratorq, is the marketing name of a range of Ford diesel engines first introduced in 2000 for the Ford Mondeo range of cars. The larger capacity 5-cylinder units use the Power Stroke branding when installed in North American-market vehicles.
The Austin Montego is a British family car that was produced by British Leyland from 1984 until 1988, and then by Rover Group from 1988 until 1995. The Montego was the replacement for both the rear-wheel drive Morris Ital and the front-wheel drive Austin Ambassador ranges to give British Leyland an all-new competitor for the Ford Sierra and Vauxhall Cavalier.
The Rover 200 Series, and later the Rover 25, are a series of small family cars that were produced by British manufacturer Rover from 1984 until 2005.
The Land Rover Defender is a series of British off-road cars and pickup trucks. They consistently have four-wheel drive, and were developed in the 1980s from the original Land Rover series which was launched at the Amsterdam Motor Show in April 1948. Following the 1989 introduction of the Land Rover Discovery, the term 'Land Rover' became the name of a broader marque, and thus no longer worked as the name of a specific model; thus in 1990 Land Rover renamed the 90 and 110 as Defender 90 and Defender 110 respectively. The 127 became the Defender 130.
The Rover 400 Series, and later the Rover 45, are a series of small family cars that were produced by the British manufacturer Rover from 1990 to 2005. The cars were co-developed as part of Rover's collaboration with Honda. The first-generation 400 was based on the Honda Concerto, and the Mark II 400 was based on the Honda Domani/Civic.
The Ford Endura-D engine is a 1.8 L (1,753 cc) inline-4 Diesel engine used in a variety of vehicles made by the Ford Motor Company, including the Ford Escort (Europe), Ford Focus, Ford Fiesta, Ford Mondeo, Ford Orion, Ford Sierra, Ford Transit Connect and Ford Ikon.
VM Motori S.p.A. is an Italian diesel engine manufacturing company which is wholly owned by Stellantis. VM headquarters and main production facilities are located in Cento, in Emilia-Romagna, Italy.
The BMW M21 is a straight-six diesel engine developed by the Bavarian engine manufacturer BMW. It has swirl chamber injection and is based on the M20 petrol engine and was produced for BMW by the Upper Austrian Steyr engine plant from 1983 to 1991. It was succeeded by the M51.
The Austin Motor Company A-series is a British small straight-4 automobile engine. Launched in 1951 with the Austin A30, production lasted until 2000 in the Mini. It used a cast-iron block and cylinder head, and a steel crankshaft with three main bearings. The camshaft ran in the cylinder block, driven by a single-row chain for most applications, and with tappets sliding in the block, accessible through pressed steel side covers for most applications, and with overhead valves operated through rockers. The cylinder blocks are not interchangeable between versions intended for conventional end-on mounted gearboxes and the 'in-sump' transaxle used on British Motor Corporation/British Leyland front wheel drive models such as the Mini. The cylinder head for the overhead-valve version of the A-series engine was designed by Harry Weslake – a cylinder head specialist famed for his involvement in SS (Jaguar) engines and several Formula One-title winning engines. Although a "clean sheet" design, the A-series owed much to established Austin engine design practise, resembling in general design and overall appearance a scaled-down version of the 1200cc overhead-valve engine first seen in the Austin A40 Devon which would form the basis of the later B-series engine.
Common rail direct fuel injection is a direct fuel injection system built around a high-pressure fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors. High-pressure injection delivers power and fuel consumption benefits over earlier lower pressure fuel injection, by injecting fuel as a larger number of smaller droplets, giving a much higher ratio of surface area to volume. This provides improved vaporization from the surface of the fuel droplets, and so more efficient combining of atmospheric oxygen with vaporized fuel delivering more complete combustion.
The Ford York engine is an inline diesel engine manufactured by Ford used in vehicles including the Ford Transit range of vans between 1972 and 1984.
The Volvo B21 is a slanted straight-four engine first used in the Volvo 200 series, meant to replace the B20. The B21 and all derived engines are often referred to as red block engines for the red paint applied to the block. The primary differences when compared to the B20 was the switch to a SOHC in place of the older pushrod configuration, and an aluminum crossflow cylinder head versus the iron head of the B20.
The BL O-series engine is a straight-4 automobile engine family that was produced by the Austin-Morris division of British Leyland (BL) as a development of the BMC B-series engine family.
The S series is a straight-4 SOHC internal combustion engine developed by the Austin Rover Group, and produced from 1984 until 1993. The engine was used in the Austin Montego, Mark 1 Rover 200-series and the MG Maestro. The engine was used in the Austin Maestro from 1985 onwards.
The Volkswagen D24 engine is a 2.4-litre inline-six-cylinder (R6/I6), naturally aspirated diesel engine, formerly manufactured by Volkswagen Group from 1978 to 1995.
Engines used by the British company Land Rover in its 4×4 vehicles have included four-cylinder petrol engines, and four- and five-cylinder diesel engines. Straight-six cylinder engines have been used for Land Rover vehicles built under licence. Land Rover has also used various four-cylinder, V8, and V6 engines developed by other companies, but this article deals only with engines developed specifically for Land Rover vehicles.
The Volkswagen-Audi V8 engine family is a series of mechanically similar, gasoline-powered and diesel-powered, V-8, internal combustion piston engines, developed and produced by the Volkswagen Group, in partnership with Audi, since 1988. They have been used in various Volkswagen Group models, and by numerous Volkswagen-owned companies. The first spark-ignition gasoline V-8 engine configuration was used in the 1988 Audi V8 model; and the first compression-ignition diesel V8 engine configuration was used in the 1999 Audi A8 3.3 TDI Quattro. The V8 gasoline and diesel engines have been used in most Audi, Volkswagen, Porsche, Bentley, and Lamborghini models ever since. The larger-displacement diesel V8 engine configuration has also been used in various Scania commercial vehicles; such as in trucks, buses, and marine (boat) applications.
