Pontiac tempest 1968 Service Manual page 45

1A-18
1968 P O N T I A C SERVICE M A N U A L
F i g . 1 A - l 9 Removing Discharge V a l v e Plate
9
0
Carefully remove rear discharge valve plate
assembly by prying up on assembly (Fig
0
1A-19, and
examine discharge valve reeds and seats. Replace
entire assembly i f excessively scored or i f any one
of the three reeds is broken or seats are damaged.
10, Carefully remove rear suction reed and ex­
amine for any damage. Replace I f necessary (Fig.
1A-20).
COMPRESSOR MAJOR INTERIOR
MECHANISM
REMOVE, INSPECT AND CHECK
1. Remove shaft seal seat retaining ring, using
J 4245 (No. 23 Truarc pliers).
2. Remove shaft seal seat, using J 9393-1 and 2
to grasp flange on seal seat. Pull straight out at
end of tool to remove seal seat.
3. Engage tabs on compressor shaft seal assembly
with locking tangs on J 9392 seal installer and r e ­
mover. Press down on tool and twist clockwise to
engage seal. Remove seal assembly by pulling
straight out from shaft.
4. Remove O-ring from Interior of front head
casting bore. (A wire with a hook formed on the end
may be used. This hook may be made i n a manner
as shown In Fig. 1A-17).
5. Remove o i l Inlet tube and O-ring, using a wire
with a hook formed i n one end (Fig. 1A-21).
6. Push on front end of compressor head to r e ­
move mechanism from rear of shell. DO NOT ham­
mer on end of compressor shaft or use undue force
to remove the compressor internal mechanism. This
assembly w i l l slide out easily.
NOTE: Some oil will drain from compressor
when mechanism assembly is removed.
7. Remove compressor front head casting assem­
bly from compressor shell. Examine sealing surface
for damage and/or deep scratches. Replace i f
necessary.
8. Remove compressor front head casting to shell
O-ring seal and inspect for damage, cuts, nicks or
imperfections. A damaged seal may be the cause of
a refrigerant leak. In any event, this O-ring must
be replaced with a new one.
9. Remove the front discharge reed plate and suc­
tion reed and examine for damage.
10. Examine mechanism for any obvious damage.
Turn compressor shaft and check for smoothness of
operation as well as for any scratches i n bores, etc.
NOTE: If mechanism has sustained major damage
due possibly to loss of refrigerant and/or oil, it
may be necessary to use the service interior
mechanism or the service cylinder assembly
rather than replace individual parts.
11. Remove suction crossover cover by sliding
out of slots.
Fig. 1 A - 2 0 Removing Suction Reed
F i g . 1A-21 Removing O i l Inlet Tube