mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Heated Oxygen Sensor (HO2S)|Page 3398 > < Heated Oxygen Sensor (HO2S)
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4. NOTE:  If necessary, lubricate the HO2S with lock lubricant to aid in removal.

Remove the HO2S from the exhaust manifold using the special tool and discard.
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To install, tighten to 48 Nm (35 lb-ft).

5. NOTE:  Do not reuse HO2S. If removed, a new sensor must be installed.

To install, reverse the removal procedure.
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Apply a light coat of anti-seize lubricant to the threads of the HO2S.

Heated Oxygen Sensor (HO2S)|Page 3398 > < Heated Oxygen Sensor (HO2S)