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HEATER-ACCESSORIES
NK337
Fig. &Heater
Hose Connections-All
8 Clylinder
Engines Except 2 7 3 and 31 8 Cu. In. Engines
the heater. This will prevent any coolant from spilling
on the inside of the vehicle as the heater assembly is
removed.
(3) From under the instrument panel remove the
bracket from the top of the heater to the dash panel.
(4) Remove the defroster hoses at the heater.
(5) Disconnect the wiring at the heater blower mo-
(6) Remove the glove box.
(7) Disconnect the control cables at the heater end.
(8)
Unclamp the flexible connector at the right end
of the heater.
Do Not Remove the Connector.
(9)
Pull the carpet or mat out from under the in-
strument panel.
(10) From inside the engine compartment remove
the three nuts that mount the heater assembly to
the dash panel.
(11) Pull the heater assembly toward the rear of
the vehicle until the mounting studs are clear of the
dash panel. Rotate the heater assembly until the
studs are down and remove the heater from under
the instrument panel.
Heater Installation
ment panel with the mounting studs down.
tor resistor.
(1) Position the heater assembly under the instru-
(2) Push the heater toward the front of the vehicle
Fig. 7-Heater
Hose C o n n e c t i o n s 2 1 8 and
2 7 3 Cu. In. Engines
while rotating the heater until the mounting studs are
in line with the mounting holes in the dash panel.
and until tti! studs protrude through the dash panel.
(3) From in the engine compartment install the
three heater assembly mounting nuts.
(4) From under the instrument panel install the
flexible connector at the right end of the heater.
(5)
Connect and adjust the control cables at the
heater assembly.
(6) Connect the wiring at the heater blower motor
resistor.
(7) Install the defroster hoses.
(8)
Install the heater to dash panel bracket.
(9) Install the glove box.
(10) Position the carpet or mat under the instru-
ment panel.
(11) From in the engine compartment remove the
plugs from the hose fittings and connect the hoses
to the heater.
(12) Connect the battery ground cable.
(13) Start the engine, operate the heater and bleed
the air from the heater system.
HEATER CORE
Removal
moval."
core.
heater assembly and remove the core.
(1) Remove the heater as outlined in "Heater Re-
(2) Remove the heater cover to expose the heater
(3) Remove the screws that mount the core to the
Installation
(1)
Position the core in the heater assembly and in-
stall the core mounting screws.
(2)
Install the heater cover.
(3) Install the heater as outlined in "Heater Instal-
lation."
BLOWER MOTOR
Removal
moval."
the heater assembly.
(1) Remoue the heater as outlined in "Heater Re-
(2)
Disconnect the wiring from the blower motor to
(3) Remove the motor cooler tube.
(4) Remove the heater backplate assembly from the
(5) Remove the fan from the motor shaft.
(6)
Remove the blower motor from the backplate.
heater.
Installation
(1)
Install the blower motor on the backplate.
(2)
Install the fan on the motor shaft. Adjust for
(3) Install the heater backplate on the heater.
clearance between the motor and fan.
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