PSA TU engine
| TU engine/NFZ engine | |
|---|---|
| Overview | |
| Manufacturer | Française de Mécanique |
| Production | Oct 1986 - 18 Dec 2014 |
| Combustion chamber | |
| Configuration | inline-four |
| Chronology | |
| Predecessor |
PSA-Renault X-Type engine Simca Poissy engine |
| Successor | PSA EP engine (Prince engine) |
The PSA TU engine is a family of small four-cylinder engines used in the Peugeot and Citroën range of cars. It was introduced in 1986 with the Citroën AX, replacing the X family, although it shared many components with its predecessor. The TU is available in either petrol or a non-turbo Diesel variants, the latter called TUD.
The TU engine is distantly related to the older X-Type engine - sharing a similar overhead camshaft architecture, but the key differences are the belt driven camshaft (the X is chain driven), and that the TU is mounted in a conventional upright position with a separate, end-on mounted transmission and unequal length driveshafts. The X engine, by comparison, had an integral transmission mounted on the side of the crankcase (giving rise to its popular nickname the "suitcase engine"), sharing a common oil supply and was mounted almost lying flat on its side within the car.
The TU engine is/was used in the following cars: Citroën: AX, Saxo, C2, C3, BX, ZX, Xsara, C15, Nemo and Berlingo. Peugeot: 106, 205, 206, 207, 309, 306, 307, 405 ,Bipper, Partner and Hoggar. Iran Khodro: Samand Soren and Runna.
The TUD engine was only used in 10 cars of which 5 were non-PSA models: the Citroën AX, Citroën Saxo, Citroën Xsara; Peugeot 106, Rover Metro/100-series, Nissan Micra, Maruti Suzuki Zen D/Di and Maruti Suzuki Esteem D/Di and ikco samand.
The TU9 was the entry-level version, used in a variety of cars including the Citroën AX, Saxo, Peugeot 205 and 106. It had a displacement of 954 cc, with a bore of 70 mm and a stroke of 62 mm. Power was initially 45 PS (33 kW), but it was increased to 50 PS (37 kW) in 1992, with the adoption of central fuel injection and a catalytic converter. Production was stopped in the Citroen Saxo and Peugeot 106 with the introduction of Euro III in 2001.
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