Nissan Sentra Service Manual: Spark plug
Exploded View
- Ignition coil
- Spark plug
- Rocker cover
Removal and Installation
REMOVAL
- Remove engine cover. Refer to EM-24, "Exploded View".
- Remove ignition coil. Refer to EM-46, "Exploded View".
- Remove spark plug using suitable tool.
(a) : 14 mm (0.55 in)
CAUTION:
Do not drop or shock spark plug.
INSTALLATION
Installation is in the reverse order of removal.
*: 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.
- Ground electrode of spark plug
- Top view
- Air-fuel mixture flow
- 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:
- Do not drop or shock spark plug.
- Do not use a wire brush for cleaning.
- If plug tip is covered with carbon, spark plug cleaner may be used.
Cleaner air pressure : Less than 588 kPa (6 kg/cm2, 85 psi)
Cleaning time : Less than 20 seconds
- Spark plug gap adjustment is not required between replacement intervals.
- Measure spark plug gap. when it exceeds the limit, replace
spark plug even if it is with in the specified replacement mileage.
Refer to EM-118, "Spark Plug".
Drive belt
Exploded View
Alternator
Drive belt auto-tensioner
Crankshaft pulley
A/C compressor
Water pump
Drive belt
Possible use range
New drive belt range
Indicator
Removal and ...
Other materials:
Operating range
The Intelligent Key functions can only be used
when the Intelligent Key is within the specified
operating range from the request switch 1.
When the Intelligent Key battery is discharged or
strong radio waves are present near the operating
location, the Intelligent Key operating range
becom ...
L terminal circuit (open)
Description
The “L” terminal circuit controls the charge warning lamp. The charge warning
lamp turns ON when the ignition
switch is set to ON or START. When the generator is providing sufficient voltage
with the engine running,
the charge warning lamp turns OFF. If the charge warnin ...
Precaution for supplemental restraint system (srs) "air bag" and "seat belt
pre-tensioner"
The supplemental restraint system such as “air bag” and “seat belt pre-tensioner”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver and front passenger for certain
types of collision. Information necessary to service the system ...
