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.
1986 Mercury Sable LS, 4D SedanFACTORY OEM SERVICE PROCEDURE
Chain Cover: Reassembly
- Using arbor press and Sprocket Bearing Replacer (T86P-70043-B), install sprocket support needle bearing. Install manual valve detent spring and position tab in hole. Tighten bolt to specifications. Start bi-metallic retaining pins in cover.
- Place end of bi-metallic with hole, over front retaining pin. Install retaining collars. Place Height Gauge (T86P-70422-A), against pin and under bi-metallic. Gently tap collar onto pin until it seats against gauge. See Fig 1 .
- Engage slotted end of bi-metallic under rear retaining pin. Use gauge and gently tap collar onto pin. Remove slotted end of bi-metallic and set center retaining pin height with gauge. Position slotted ends of plate onto rear and middle pins.
Factory Service Tools
Use the Manual With the Right Hardware
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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.
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