Dodge Sprinter. Manual — part 43
DIAGNOSIS AND TESTING - GENERATOR DECOUPLER
CONDITION
POSSIBLE CAUSES
CORRECTION
Does not drive generator
(generator not charging)
Internal failure
Replace decoupler
Noise coming from decou-
pler
Internal failure
Replace decoupler
REMOVAL
The generator decoupler is used only with
certain engines.
Two different type generator decoupler pulleys are
used. One can be identified by the use of machined
splines (Fig. 3). The other can be identified by a hex
opening (Fig. 4) and will not use splines.
Different special tools are required to service each
different decoupler. Refer to following procedure.
INA Decoupler
(1) Disconnect negative battery cable.
(2) Remove generator and accessory drive belt.
Refer to Generator Removal.
(3) Position Special Tool #8823 (VM.1048) into
decoupler (Fig. 5).
(4) Determine if end of generator shaft is hex
shaped (Fig. 6) or is splined (Fig. 7). If hex is used,
insert a 10MM deep socket into tool #8823 (VM.1048)
(Fig. 8). If splined, insert a 5/16” 6-point hex driver,
or a 10MM 12-point triple square driver into tool
#8823 (VM.1048) (Fig. 9).
(5) The generator shaft uses conventional right-
hand threads to attach decoupler. To break decoupler
loose from generator threads, rotate end of tool clock-
wise (Fig. 8) or, (Fig. 9).
(6) After breaking loose with tool, unthread decou-
pler by hand from generator.
Fig. 3 GENERATOR DECOUPLER PULLEY (INA)
1 - GENERATOR
2 - DECOUPLER (INA)
3 - MACHINED SPLINES
Fig. 4 GENERATOR DECOUPLER PULLEY (LITENS)
1 - DECOUPLER (LITENS)
2 - HEX OPENING
8F - 20
CHARGING SYSTEM
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Fig. 5 #8823 TOOL AND INA DECOUPLER
1 - INA DECOUPLER
2 - TOOL #8823 (VM.1048)
Fig. 6 END OF GENERATOR SHAFT (HEX)
1 - GENERATOR SHAFT
2 - HEX
Fig. 7 END OF GENERATOR SHAFT (SPLINED)
1 - GENERATOR SHAFT
2 - SPLINES
Fig. 8 DECOUPLER REMOVAL (INA-HEX)
1 - DEEP 10 MM SOCKET
2 - TOOL #8823 (VM.1048)
VA
CHARGING SYSTEM
8F - 21
Litens Decoupler
(1) Disconnect negative battery cable.
(2) Remove generator and accessory drive belt.
Refer to Generator Removal.
(3) Position Special Tool #8433 (Fig. 10) into
decoupler. Align to hex end of generator shaft.
(4) The generator shaft uses conventional right-
hand threads to attach decoupler. To break decoupler
loose from generator threads, rotate end of tool clock-
wise (Fig. 11).
(5) After breaking loose with tool, unthread decou-
pler by hand from generator.
INSTALLATION
INA Decoupler
(1) Thread decoupler pulley onto generator shaft
by hand (right-hand threads).
(2) Position Special Tool #8823 (VM.1048) into
decoupler (Fig. 5).
(3) Determine if end of generator shaft is hex
shaped (Fig. 6) or is splined (Fig. 7). If hex is used,
insert a 10MM deep socket into tool #8823 (VM.1048)
(Fig. 12). If splined, insert a 5/16” 6-point hex driver,
or a 10MM 12-point triple square driver into tool
#8823 (VM.1048) (Fig. 13).
Fig. 9 DECOUPLER REMOVAL (INA-SPLINED)
1 - DRIVER
2 - TOOL #8823 (VM.1048)
3 - 17 MM WRENCH
Fig. 10 # 8433 TOOL AND LITENS DECOUPLER
Fig. 11 DECOUPLER REMOVAL (LITENS)
8F - 22
CHARGING SYSTEM
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(4)
Do not use an adjustable, ratcheting
“click type” torque wrench. Most “click type”
wrenches will only allow torque to be applied
in a clockwise rotation. Use a dial-type or
beam-type wrench. Tighten in counter-clockwise
rotation (Fig. 12) or, (Fig. 13). Refer to torque speci-
fications.
(5) Install accessory drive belt, and generator.
Refer to Generator Installation.
(6) Connect negative battery cable.
Litens Decoupler
(1) Thread decoupler pulley onto generator shaft
by hand (right-hand threads).
(2) Position Special Tool 8433 (Fig. 10) into decou-
pler. Align tool to hex end of generator shaft.
(3)
Do not use an adjustable, ratcheting
“click type” torque wrench. Most “click type”
wrenches will only allow torque to be applied
in a clockwise rotation. Use a dial-type or
beam-type wrench. Tighten in counter-clockwise
rotation (Fig. 14). Refer to torque specifications.
(4) Install accessory drive belt, and generator.
Refer to Generator Installation.
(5) Connect negative battery cable.
Fig. 12 DECOUPLER INSTALLATION (INA-HEX)
1 - 10MM DEEP SOCKET
2 - TOOL # 8823 (VM.1048)
Fig. 13 DECOUPLER INSTALLATION (INA SPLINED)
1 - DRIVER
2 - TOOL # 8823 (VM.1048)
3 - BACKUP WRENCH
VA
CHARGING SYSTEM
8F - 23
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