Chrysler 2.2 & 2.5 engine
| 2.2 & 2.5 engine | |
|---|---|
A 2.2L TBI engine installed in a 1994 Plymouth Sundance
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| Overview | |
| Manufacturer | Chrysler |
| Production | 1981-1995 |
| Combustion chamber | |
| Configuration | inline-four |
| Displacement |
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| Cylinder bore |
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| Piston stroke |
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| Cylinder block alloy | Cast Iron |
| Cylinder head alloy | Aluminum |
| Valvetrain | |
| Compression ratio |
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| Combustion | |
| Fuel system | |
| Fuel type | |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Chronology | |
| Successor | |
The 2.2 and 2.5 are a family of inline-4 engines developed by Chrysler Corporation originally for the Chrysler K- and L-platforms cars and subsequently used in many other Chrysler vehicles. After its launch in 1981, it became the basis for all Chrysler-developed 4-cylinder engines until the Chrysler 1.8, 2.0 & 2.4 engine family was released in 1994.
The first version of this engine family was a normally aspirated 2.2 L (134 cu in) unit. Developed under the leadership of Chief Engineer – Engine Design and Development Willem Weertman and head of performance tuning Charles "Pete" Hagenbuch, who had worked on most of Chrysler's V-8 engines and the Chrysler Slant-6 engine, it was introduced in the 1981 Dodge Aries, Dodge Omni, Plymouth Horizon and Plymouth Reliant, and was produced until 2000.
The 2.2 has an undersquare 87.5 mm (3.44 in) bore and 92 mm (3.62 in) stroke, which gives it a displacement of 2,213 cc (135.0 cu in). It is a siamesed engine: there are no coolant passages between cylinders. The bore spacing is 96 mm (3.78 in), limiting the potential for increased bore diameter. All 2.2 engines have cast iron blocks, use a timing belt, and are non-interference engines. The earliest version used a two-barrel carburetor, but fuel injection was introduced in 1984 on both turbocharged and normally aspirated models (it is used on all 2.5 liter engines). The fuel injection was standard on some higher end (Chrysler E-Class/Chrysler New Yorker/Dodge 600 and the Dodge Daytona/Chrysler Laser). In 1985 it became optional on the lower end models (Dodge Omni/Plymouth Horizon, Dodge Aries/Plymouth Reliant), eventually replacing the carbureted variant on all the models.
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