Operation CHARM
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Mercury
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1984
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Cougar/XR7 L4-140 2.3L SOHC Turbo
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Repair and Diagnosis
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Engine, Cooling and Exhaust
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Engine
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Cylinder Block Assembly
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Piston
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Specifications
Piston: Specifications
Piston Diameter
<coded red>
3.7764-3.7770 Inch (in)
Piston Diameter
<coded blue>
3.7776-3.7782 Inch (in)