PSA XUD engine
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- See also PSA XU engine for the related gasoline variant
The PSA XUD engine is a family of Diesel straight-4 internal combustion engines used in Citroën and Peugeot automobiles. The basic XU design was introduced in 1981 with the Peugeot 305.
The XUD was available with either SOHC or 12-valve DOHC heads. It was mainly applied transversally in front wheel drive vehicles, tilted by 30°. However, some applications in non-PSA vehicles had the engine installed longitudinally, with rear wheel drive.
Displacement ranged between 1769 and 2138 cc, and all XU diesel engines had a stroke of 88 mm (3.5 in) or 92 mm (3.6 in). The former was shared with the XU9. Bore sizes ranged from 80 mm (3.1 in) to 86 mm (3.4 in), some shared with other XU engines.
The XUD was replaced by the joint Ford/PSA DLD/DV family.
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[edit] XUD7
The XUD7 had a displacement of 1.8 L (1769 cc), with a bore of 80 mm (3.1 in) and a stroke of 88 mm (3.5 in). Output was 60 PS (59 hp/44 kW) for the naturally aspirated version or 78 PS (77 hp/57 kW) for the turbocharged model. An intercooled turbocharged version was introduced later with 90 PS.
| Model | Output | Notes |
|---|---|---|
| XUD7 T/K | 78 PS (76 hp/57 kW) | Diesel turbo |
| XUD7 TE | 90 PS (88 hp/66 kW) | Diesel turbo with intercooler |
| XUD7/K | 60 PS (59 hp/44 kW) | Diesel |
| XUD7/Z | 60 PS (59 hp/44 kW) | Diesel catalyst |
[edit] XUD9
The XUD9 had a displacement of 1.9 L (1905 cc), with a bore of 83 mm (3.3 in) and a stroke of 88 mm (3.5 in). Both turbocharged and naturally aspirated versions were produced. Most turbocharged versions featured an intercooler, although a limited number of installations in the Citroen Xantia featured a Turbocharger without intercooler. Both engines also featured either a Bosch or a Lucas mechanical fuel pump and injectors. The original XUD9 engine is known as the "square port" engine, as its cylinder head has square exhaust ports. Later (and noticeably improved) XUD9A engines have oval ports.
| Model | Output | Notes |
|---|---|---|
| XUD9 | 65 PS (64 hp/47 kW) | Diesel |
| XUD9 A | 71 PS (70 hp/52 kW) | Diesel |
| XUD9 TE/L | 92 PS (90 hp/67 kW) | Diesel turbo |
| XUD9 TE/Y | 90 PS (88 hp/66 kW) | Diesel turbo catalyst |
| XUD9/Z | 68 PS (67 hp/49 kW) | Diesel catalyst |
[edit] XUD11
The XUD11 was available in two displacements:
- 2.1 L (2138 cc) — XUD11 A naturally-aspirated
- 2.1 L (2088 cc) — XUD11 ATE/BTE turbocharged
Both were 12-valve SOHC engines with a 92 mm (3.6 in) stroke. The naturally-aspirated XUD11 A was bored to 86 mm (3.4 in) for a total displacement of 2.1 L (2138 cc), while the turbocharged ATE/BTE versions were reduced in bore to 85 mm (3.3 in) for a total of 2.1 L (2088 cc).
| Model | Output | Notes |
|---|---|---|
| XUD11 A | 83 PS (81 hp/61 kW) | Diesel 12-valve SOHC |
| XUD11 ATE | 110 PS (108 hp/80 kW) | Diesel 12-valve SOHC turbo |
| XUD11 BTE | 110 PS (108 hp/80 kW) | Diesel 12 S turbo catalyst |
[edit] Sources
- Guide des moteurs Peugeot Citroën (in French)
