PSA XUD
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The PSA XUD is a Diesel engine designed and built by PSA - Peugeot and Citroën. The engine comes in 1769cc 1.8, 1.8 Turbo, 1905cc 1.9 N/A, 1.9 Turbo, 2.1 12 valve N/A and Turbo and 2.5 Turbo configurations, and was the predecessor to the HDI range of engines (developed jointly between Ford and PSA). The engine has been installed into the following vechicles:-
- Citroën BX
- Citroën ZX
- Citroën Xsara
- Citroën Berlingo
- Citroën Xantia
- Citroën XM
- Peugeot 205
- Peugeot 309
- Peugeot 405
- Peugeot 406
- Suzuki Baleno
- Rover 200
- Rover 400
Note: Peugeot 306 (phase 1 and 1.9 phase 2) diesels also uses these engines. Please note Rover 100/Metro, Peugeot 106, Citroën AX diesels used the much physically smaller TUD diesel engines, developed from the TU series petrol in alloy block 1.4 and later iron block (after much head gasket/cylinder liner trouble) 1.5 versions, all naturally aspirated non-turbo.
Upon its release the engine was noted as one of the best Diesel engines (for cars and light vans) in the world with its high power output and refinement it made all other diesel engines seem agricultural . However if the service schedule was skipped the engine had a tendency to blow its head gasket as coolant changes on this engine are critical.
In some larger versions the engine when accompanied by a Bosch fuel pump can run on SVO (pure vegetable oil) in all but cold weather. The viscosity of vegetable oil when cold is too great for other types of pump (in particular the Lucas pumps), preventing it acting as a lubricant and seizing up the distributor.
