Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMERCURY1982COUGAR/XR7 V8-255 4.2LREPAIR AND DIAGNOSISSPECIFICATIONSFLUID TYPE SPECIFICATIONSENGINE
1982 Mercury Cougar/XR7 V8-255 4.2L
Engine
1982 Mercury Cougar/XR7 V8-255 4.2LSECTION Engine
For INDIVIDUAL Component Specifications, please refer to the Specifications under the actual Component name you are looking for. For a list of MORE THAN ONE Component Specifications, please refer to Vehicle: Specifications. Then find the appropriate "Specification Type", some samples are listed below:
Electrical
Mechanical
Pressure, Vacuum and Temperature
Capacities
Fluid Types
Angle (Degrees)
Dimensions - Spark Plug Gap, Cylinder Bore & Stroke
Power Output @ RPM - Horsepower @ RPM
Pressure
Pressure @ RPM - Oil Pressure @ RPM
Ratio - Compression Ratio
Temperature
Torque - Engine Tightening
Torque @ RPM - Engine Torque @ RPM
Volume or Capacity - Engine Oil Capacity
Electrical
Mechanical
Pressure, Vacuum and Temperature
Capacities
Fluid Types
Angle (Degrees)
Dimensions - Spark Plug Gap, Cylinder Bore & Stroke
Power Output @ RPM - Horsepower @ RPM
Pressure
Pressure @ RPM - Oil Pressure @ RPM
Ratio - Compression Ratio
Temperature
Torque - Engine Tightening
Torque @ RPM - Engine Torque @ RPM
Volume or Capacity - Engine Oil Capacity
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.