Compressor Assembly -Internal Cylinder And Shaft - Chevrolet 1988 Light Duty Truck Repair Manual

A. O-Ring Seal Seat Recess
B. T hum b Screw
24. C ylin d e r Seal (Lubricated)
23. Rear C ylinder
11. Front Head
Figure 29 — Installing the O-Ring Seals on the
Cylinder Seal Races
7. Head gasket (27).
8 Valve plate (26).
.
9. Suction reed plate (25).
Cylinder seal (24).
10
.
Cylinder (23).
11
.
Im p o rta n tt
• S haded parts show n in fig u re 3 are not
serviceable. A replacem ent kit (gut pack) is
available.
• C y lin d e rs (2 3 ) (16), c y lin d e r s e a l (2 2 ),
discharge crossover seal (17), piston group,
axial plate shaft assem bly (20) and bearings
replace as a kit.
12 C ylinder seal (22).
.
13. C ylinder (16).
14. C ylinder seal (15).
Suction reed plate (14).
15.
16. Valve plate (13).
17. Head gasket (12).
18. Front head (11).
j j j l
C lean
• All parts.
I ? Inspect
• All parts and replace as necessary.
COMPRESSOR ASSEMBLY
—INTERNAL CYLINDER
AND SHAFT
Install or C o n n e c t (F ig u res 3, 30 th ro u g h 38)
- H -
Tools Required:
J 21352-A Support Block
J 33016 Cylinder Alignm ent Rods
J 33026 C om pressor H olding Fixture
Use new seals and gaskets.
DA-6 AIR CONDITIONING COMPRESSOR 1B2-11
B-06476 A. O pening to Rear S u ctio n Port
B. T hrough B olt H ole (6)
C. S u ctio n Pressure (O utside Cavity)
D. D ischarge Pressure (Inner Cavity)
E. O pening to Rear D ischarge Port
F. H igh Pressure R elief Valve
G. D rilled O pen ing into H igh
28. Rear Head
Figure 30— Positioning the J-33016 Guide Pins
• Place J 21352-A on the w orkbench or suitable flat
1. Rear head (28) onto J 21352-A.
2. Head gasket (27).
3. Valve plate (26).
4. Suction reed plate (25).
5. Cylinder seal (24).
6. C ylinder and shaft assem bly (gut pack).
(12 O 'C lock P o sition A sse m bly Reference)
Pressure R elief Valve Area
work surface.
• Install J 33016 guide pins small diam eter ends
into the through bolt holes (figure 30).
• Over guide pins into head (28) (figure 31).
9
Im p o rta n t
• Locate the head gasket (27) to prevent the
discharge valve reed retainer on the rear valve
plate (26) from hitting the internal segm ent of
the head gasket (27) (figure 31).
• Over the guide pins into position (figure 32).
• Over the guide pins into proper position (figure
33).
• Be sure all three suction reed tips cover the
suction ports in the rear valve plate (26).
• Lubricate a new cylinder seal (24) with clean
525 viscosity refrigerant oil and position the
seal on the rear cylinder (23) (figure 29). Roll
the cylinder seal into the groove. C ylinder (23)
surface must be clean at the rear.
• Apply refrigerant oil to the seal surface of the
rear head to easy assembly.
• S haded parts show n in fig u re 3 are not
serviceable. A replacem ent kit (gut pack) is
available for replacement.
J 33016
21352-A
B-06726