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Charging System - Generators & Regulators: Specifications Ford Focus I facelift

Charging System 2 illustrations ~229 words

GENERAL SPECIFICATIONS

ItemSpecification
Generator, 2.0L and 2.3L
Rating65/110 amps (max) @ 1,800-6,000 generator RPM, approximately 500-2,000 engine RPM
Generator pulley ratio2.37:1 (Early build vehicles) 2.41:1 (Late build vehicles)
Voltage regulator typeElectronic internal with generator
Generator, 2.0L PZEV
Rating58/120 amps (max) @ 1,800-6,000 generator RPM, approximately 500-2,000 engine RPM
Generator pulley ratio2.40:1
Voltage regulator typeElectronic internal with generator

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

DescriptionNm
Accessory drive splash shield screws5
Engine roll restrictor mount bolt48
Generator air duct bolts/nuts12
Generator B+ terminal nut8
Generator heat shield nuts (2.0L PZEV)25
Generator mounting bolts/nuts47
Generator pulley nut109
Generator splash shield nuts25
Generator stud bolts24
Generator upper air duct nuts (2.0L PZEV)4
Generator voltage regulator screws3
Radial adapter nut11

TORQUE SPECIFICATIONS

The charging system is a negative ground system consisting of

  1. a generator.
  2. an internal voltage regulator.
  3. a charging system warning indicator.
  4. a battery.
  5. circuitry and cables.

The generator has an internal voltage regulator that is not repairable separately. A new generator and the voltage regulator must be installed as an assembly.

All manual transaxle applications are equipped with a one-way clutch (OWC) in the generator pulley. The OWC pulley temporarily disengages the generator rotor from the front engine accessory drive (FEAD) system during high deceleration rates on the engine, which may increase belt life and decrease belt chirp. A new OWC pulley and generator/voltage regulator must be installed as an assembly.

The generator is belt-driven by the FEAD system. Refer to ACCESSORY DRIVE article. When the engine is started, the generator begins to generate AC which is internally converted to DC. This current is then supplied to the vehicle electrical system through the output (B+) terminal of the generator.

The generator and voltage regulator

  1. supply current to the electrical system.
  2. charge the battery.
  3. adjust the generator field current to increase or decrease the generator output.

Refer to CHARGING SYSTEM - GENERAL INFORMATION article.

Generator - 2.0L

Note. Early build vehicles.

Scheme 1

Scheme 1: Generator - 2.0L
ItemPart NumberDescription
16A228Front end accessory drive belt tensioner
26C301Front end accessory drive belt
310C392Generator lower air duct
4Generator electrical connector (part of 9H589)
5Generator B+ terminal nut (part of 10300)
6Generator B+ terminal (part of 14A280)
7W520414Generator splash shield nuts (2 required)
810A346Generator splash shield
9W500130Generator bolt
10W520414Generator nuts (2 required)
1110300Generator
12W709489Generator stud bolts (2 required)
13Generator air duct bolt
1410C392Generator upper air duct

Note. Late build vehicles.

Scheme 2

Scheme 2
ItemPart NumberDescription
16A228Front end accessory drive belt tensioner
26C301Front end accessory drive belt
3Generator air duct nuts
410C392Generator air duct
510C392Generator air duct
6Generator B+ terminal nut (part of 10300)
6Generator B+ terminal (part of 14A280)
7Generator electrical connector (part of 9H589)
8W520414Generator nuts
9W709489Generator stud (2 required)
10W500130Generator bolt
1110A346Generator splash shield
1210300Generator

See also:
JACKING AND LIFTING