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 MANUALSMERCURY1990COUGAR/XR7 V6-232 3.8LREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSENGINECYLINDER BLOCK ASSEMBLYSYSTEM SPECIFICATIONSGENERAL SPECIFICATIONS
1990 Mercury Cougar/XR7 V6-232 3.8L
General Specifications
1990 Mercury Cougar/XR7 V6-232 3.8LSECTION General Specifications
(1) 20-200 seconds to leakdown 3.18 (0.125 in) with 225 Newtons (50 pounds) load and tappet filled with leakdown fluid.
(2) No end play. Camshaft is restrained by spring.
(3) Runout of journals II and III to journals I and IV.
(4) Runout of adjacent journals to each other.
(5) Smaller than pin bore measured along center to center axis.
* Passenger Car: 4 qt. + 1 with filter change.
Truck: 5 qt. + 1 with filter change.
** Engine packages equipped with Tripminder: Return line must be closed when checking pressure.
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.