Nissan Sentra manuals

Nissan Sentra Service Manual: Spark plug

Exploded View


  1. Ignition coil
  2. Spark plug
  3. Rocker cover

Removal and Installation

REMOVAL

  1. Remove engine cover. Refer to EM-24, "Exploded View".
  2. Remove ignition coil. Refer to EM-46, "Exploded View".
  3. Remove spark plug using suitable tool.

(a) : 14 mm (0.55 in)

CAUTION:

Do not drop or shock spark plug.

INSTALLATION


INSTALLATION

Installation is in the reverse order of removal.

*: Always check with the Parts Department for the latest parts information.


*: Always check with the Parts Department for the latest parts information.

CAUTION:

Always tighten the spark plug to specified torque to align the orientation of electrodes. The ground electrode of a genuine spark plug is positioned in the area of maximum ignitability by tightening to the specified torque. When replacing spark plugs, use genuine spark plugs of which the ground electrode is adjusted.

NOTE:

The ground electrode of the spark plug is positioned in the area of maximum ignitability to improve combustion efficiency in the cylinder, reduce CO2 (carbon dioxide) emission and improve fuel economy.


  1. Ground electrode of spark plug
  1. Top view
  2. Air-fuel mixture flow
  3. Poor ignitability region

Inspection

INSPECTION AFTER REMOVAL

Use the standard type spark plug for normal condition.

Spark plug (Standard type) : Refer to EM-118, "Spark Plug".

CAUTION:

Cleaner air pressure : Less than 588 kPa (6 kg/cm2, 85 psi)

Cleaning time : Less than 20 seconds


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