Air Leakage - Mazda 1983 RX7 Service Manual

HEATING SYSTEM TROUBLESHOOTING CAT. U, NO. 93-04
3. Adjust the climate controls to the following settings:
Function
Temperature
Fan speed
Recirculate/fresh
4. Raise the engine speed to 2000 rpm and hold for ten minutes.
5. Measure the vent outlet air temperature.
NOTE: The thermostat will cycle after the engine has reached
operating temperatures. Measure outlet air temperature
several times over a ten minute period to attain the high
temperature reading (thermostat closed).
Item 2 - Air Leakage
A. Interior Components
1. Remove the lower kick panel on passenger side.
2. Remove the glove box.
3. Adjust the climate controls to the following settings:
Function
Temperature
Fan speed
Recirculation-fresh
4. Check for leakage between blower unit and cooler unit (air
duct).
5. Check for leakage between cooler unit (air duct) and heater
unit.
NOTE: Air duct is present only on vehicles not equipped with air
conditioning.
B. Engine compartment
1. Turn off the engine.
2. Raise the hood and visually inspect the following for proper
sealing:
* A/C drain grommet
* A/C pipes where they enter the cooling unit at the firewall.
* Heater pipes where they enter the firewall.
* All body harnesses that pass through the firewall.
* Speedometer cable.
Article Text (p. 6)
For www.iluvmyrx7.com
Copyright © 1998 Mitchell Repair Information Company, LLC
Monday, August 27, 2001 06:36AM
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1983 Mazda RX7
Bi-level
Max. hot
2
Fresh
Defrost
Max. hot
4
Fresh