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HEATER AND AIR CONDITIONING 1A-74
Fig. 108—Comfortron Power Servo Installation
4. Disconnect
heater' hoses from heater core (at
firewall).
5. Remove glove box door.
6. Remove glove box interior.
7. Disconnect right, left, and center air conditioning
outlet hoses from distributor duct.
8. Remove
a i r
distributor
duct
f r o m heater
housing.
9. Disconnect hose and cable clamps from heater
housing.
10. Remove the remaining three heater housing stud
retaining nuts (engine compartment) and one upper
retaining screw (inside vehicle).
11. Pull the unit away from the firewall and out of the
car.
ADJUSTMENT
SCREW
Fig. 109—Mode Shift Vacuum Diaphragm
Fig. 110'—Compressor Mount—L-6 Engines (Typical)
12. Remove heater.housing cover from heater housing.
13. Remove heater core from heater housing cover by
removing four (4) retaining screws and two "U"
clamps.
14. Remove heater core.
Installation
1. Replace core in case using a non hardening sealer.
Attach the core clamps and retaining screws.
2. Attach the heater housing cover to the housing.
3. Position the unit against the firewall and attach
it with the retaining screw at the top of the case.
4. Attach the sheet metal nuts to the case studs which
project through the firewall to the engine side.
5. Connect the control cables to the control doors and
case.
6. Attach the air distributor duct to the case.
7. Connect the left, right, and center outlet hoses.
8. Replace the glove box assembly.
9. Connect heater hoses to core tubes.
10. Replace fender assembly.
11. Fill cooling system and connect battery cable.
Camaro
Lower Heater Hose
Removal
1. Drain radiator.
2. Remove side mouldings and retainers.
3. Remove lower fender attaching bolts.
4. Remove skirt to fender and skirt to reinforcement
bolts.
5. pry the skirt away from the fender flange and away
from the firewall. Block the skirt (four inchlengtti
of 2 x 4) clear of the lower hose and proceed with
the hose replacement.
Installation
1. Connect the hose.
2. Remove the block, move the skirt into position and
install all attaching bolts.
3. Replace fender attaching bolts and mouldings.
4. Refill cooling system.
CHEVROLET CHASSIS SERVICE MANUAL
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