Contents Wiring diagrams Section: Ignition System All sections

Engine Ignition - 2.3L: Specifications Mercury Milan I

Ignition System 1 illustration ~153 words

GENERAL SPECIFICATIONS

ItemSpecification
Lubricants and Chemicals
Silicone Brake Caliper Grease and Dielectric Compound XG-3-AESE-M1C171-A
Engine Ignition
Spark plug gap1.25-1.35 mm (0.049-0.053 in)
Spark plug6M8G-12405-BB

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

DescriptionNm
Ignition coil-on-plug bolts10
Spark plugs12
Generator inlet duct6

TORQUE SPECIFICATIONS

The electronic ignition (EI) system is a coil-on-plug ignition system. The coil-on-plug ignition system consists of the

  1. coil-on-plug.
  2. spark plugs.
  3. crankshaft position (CKP) sensor.
  4. camshaft position (CMP) sensor.

The coil-on-plugs

  1. change low voltage signals from the powertrain control module (PCM) to high voltage pulses.
  2. produce the high voltage pulses to the spark plugs.
  3. are connected directly to each spark plug.

The spark plugs

  1. change high voltage pulses into a spark which ignites the fuel and air mixture.

The CKP sensor

  1. is a variable reluctance sensor.
  2. is triggered by a 36-minus-1 tooth trigger wheel mounted on the crankshaft.
  3. provides base timing and crankshaft speed (rpm) to the PCM.

The CMP sensor

  1. is a Hall-effect sensor.
  2. provides camshaft rotational location information to the PCM.

Refer to the Introduction - Gasoline Engines .

Scheme 1

Scheme 1: Engine Ignition Components - Exploded View
ItemPart NumberDescription
114A464Ignition coil-on-plug electrical connector (4 required) (part of 12B637)
2W500215Ignition coil-on-plug bolt (4 required)
312A366Ignition coil-on-plug (4 required)
412405Spark plug (4 required)
  1. For additional information, refer to the appropriate procedures.