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HEATER AND AIR CONDITIONING 1A-6
CHEVROLET SHOWN AS TYPICAL
Fig. 8—Heater Hose Routing (Chevrolet Shown as Typical)
cables, defroster hoses and the
place and install all at-
4.
5.
6.
Attach all bowden
wiring connector.
Set heater assembly into
taching nuts and screws.
Attach inlet and outlet hoses.
Replace glove box and glove box door.
Refill cooling system.
Defroster Duct
Installation of the defroster duct as used in Chevy H
vehicles is illustrated in Figure 14.
Blower Motor
Replacement
1. Remove the heater assembly from the firewall.
Remove the five screws attaching the motor and
blower to the heater assembly.
2. Remove the retainer attaching blower to the motor
shaft.
3. Replace blower on new motor assembly, balance and
reinstall into heater assembly.
Fan Control
Replacement
1. Remove the screws at the dash lower edge which
retain the control assembly and lower the assembly.
2. Disconnect the blower harness connector and remove
the switch retaining screws and switch.
3. Install the replacement switch with the nylon bearing
inserted into the AIR - FAN lever slot.
4. Connect the blower harness connector and remount
the control assembly in the dash.
CORVETTE
Blower Assembly
Removal
1. Remove the radiator supply tank from its retaining
straps and move it out of the way, then disconnect
the battery positive cable.
NOTE: It is not necessary to drain the radiator.
2. Remove the connectors from the blower motor.
3. Scribe or chalk a mark on the blower motor mount-
ing plate and blower assembly.
4. Remove the five screws retaining the blower mount-
ing plate to the blower inlet assembly.
Withdraw the blower assembly from the inlet
5.
assembly.
Disassembly
Remove the blower wheel from the motor by removing
the nut and tapping the motor shaft with a soft hammer.
Installation
1. Assemble the blower to motor and using the scribe
mark, properly position the blower assembly on the
inlet assembly and install the five screws.
2. Replace the electrical connectors on the blower
motor.
3. Replace the radiator supply tank and the battery
positive cable.
Blower and Air Inlet Assembly
Removal
1. Drain the radiator.
2. Remove the radiator supply tank from its retaining
straps and swing it out of the way.
3. Remove the battery.
CHEVROLET CHASSIS SERVICE MANUAL
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