Pontiac tempest 1968 Service Manual page 56

CUSTOM A I R C O N D I T I O N I N G
1A-29
Fig. 1 A - 4 7 Refrigeration System Components - Tempest
14. Position new metal sleeve retainer so that its
flange face will be against the front end of the sleeve.
Tool J 9395 or the sleeve from tool J 9393 may be
used to install the retainer. Press and tap with a
mallet, setting the retainer and sleeve Into place,
until the outer edge of the retainer is recessed ap­
proximately 1/32" from the face of the compressor
neck.
15. Re-install the clutch driven plate.
P.O.A. VALVE-REMOVE AND REPLACE
A L L (Figs. 1A-46, 47 and 48)
1. Depressurize system.
2. Loosen oil bleed fitting.
3. Loosen equalizer fitting.
4. Loosen inlet and outlet fittings.
5. Remove valve from bracket.
NOTE: If valve is not immediately replaced, cap
openings to prevent entry of dirt and moisture.
6. Replace by reversing above procedure using
new O-ring seals coated with compressor oil.
7. Evacuate and charge system.
Compressor belt tension specifications are as
follows:
New Old
A L L 140-145 lbs. 100-105 lbs.
EXPANSION VALVE AND SEALS-REMOVE AND
REPLACE (Figs. IA-46, JA-47 and 1A-48)
1. Depressurize system.
2. Remove thermo bulb from sealer at evaporator
outlet.
3. Disconnect equalizer line at P.O.A. valve.
4. Remove inlet and outlet fittings of valve.
NOTE: On some models it may be necessary to
loosen and tip the compressor to gain access to
these fittings.
5. If valve is not immediately replaced cap open­
ings to prevent entry of dirt and moisture.