Jeep Liberty KJ. Manual — part 1499
INSTALLATION
INSTALLATION - GAS
1. 2.4L Engine: Position generator to engine and
install two mounting bolts (1) and (2) and tighten to
57 N·m (42 ft. lbs.)
2. 3.7L Engine: Position generator to engine and
install three mounting bolts (2) and (3). Tighten 2
horizontal
mounting
bolts
to
specified
torque.
Tighten 1 vertical mounting bolt and tighten to 40
N·m (29 ft. lbs.)
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CHARGING SYSTEM
KJ
3. Snap field wire connector (4) into rear of generator.
4. Install B+ terminal (3) and nut (2) to generator
mounting stud and tighten to 13 N·m (115 in. lbs.)
5. Snap plastic protective cover (1) to B+ terminal.
CAUTION: Never force a belt over a pulley rim using a screwdriver. The synthetic fiber of the belt can be
damaged.
CAUTION: When installing a serpentine accessory drive belt, the belt MUST be routed correctly. The water
pump will be rotating in the wrong direction if the belt is installed incorrectly, causing the engine to over-
heat. Refer to belt routing label in engine compartment, or refer to Belt Schematics in 7, Cooling System.
6. Install drive belt Refer to 7, Cooling System for belt routing, belt adjustment and bolt tightening procedures.
7. Install negative battery cable to battery.
INSTALLATION - DIESEL
1. Position generator (1) to engine.
2. Install generator mounting bolts/nuts (2) and tighten
to 54 N·m (42 ft. lbs.).
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CHARGING SYSTEM
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3. Tighten support bracket bolts (3) and nut (2).
4. Connect field terminal connector at rear of genera-
tor.
5. Install battery output cable and nut to B+ terminal
at top of generator and tighten to 13 N·m (115 in.
lbs.)
6. Install protective plastic cover to B+ stud at top of
generator.
CAUTION: Never force a belt over a pulley rim using a screwdriver. The synthetic fiber of the belt can be
damaged.
CAUTION: When installing a serpentine accessory drive belt, the belt MUST be routed correctly. The water
pump will be rotating in the wrong direction if the belt is installed incorrectly, causing the engine to over-
heat. Refer to belt routing label in engine compartment, or refer to Belt Schematics in Cooling System.
7. Install generator drive belt. Refer to Cooling System for procedure.
8. Install engine oil fill cap and engine oil dipstick.
9. Install plastic decorative engine cover. Cover snaps onto engine.
10. Connect negative battery cable.
11. Check charging system for proper operation.
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CHARGING SYSTEM
KJ
PULLEY - GENERATOR DECOUPLER
DESCRIPTION
The generator decoupler is used only with certain
engines. The decoupler is used in place of the stan-
dard generator drive pulley.
OPERATION
The generator decoupler is used only with certain engines. The decoupler is a one-way clutch designed to help
reduce belt tension fluctuation, vibration, reduce fatigue loads, improve belt life, reduce hubloads on components,
and reduce noise. Dry operation is used (no grease or lubricants). The decoupler is not temperature sensitive and
also has a low sensitivity to electrical load. The decoupler is a non-serviceable item and is to be replaced as an
assembly.
DIAGNOSIS AND TESTING - GENERATOR DECOUPLER
CONDITION
POSSIBLE CAUSES
CORRECTION
Does not drive generator
(generator not charging)
Internal failure
Replace decoupler
Noise coming from
decoupler
Internal failure
Replace decoupler
REMOVAL
The generator decoupler is used only with certain engines.
KJ
CHARGING SYSTEM
8F - 37
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