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 MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 130 (ENGINE CONTROLS - SPECIFICATIONS - 4.0L)MECHANICAL CHECKSVALVE CLEARANCE

1991 Mercury Tracer Base, 4D Sedan, Automatic

Valve Clearance

1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Valve Clearance

WARNING: This page is about a different car, the 1996 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: All models are equipped with hydraulic valve lifters; valve adjustment is not required. If incorrect valve clearance is suspected, collapse lifter before checking clearance.

COLLAPSED VALVE LIFTER CLEARANCE

Application

In. (mm)

4.0L

⁽¹⁾

⁽¹⁾	Information not available at time of publication.

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.