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

A. P lastic Headed H am m er
B. W ood B lock
11. Front Head
28. Rear Head
Figure 29— Tapping the Rear Head or Front Head
Free of the Cylinder
8 Valve plate (26).
.
9. Suction reed plate (25).
.
10 C ylinder seal (24).
C ylinder (23).
11
.
Im po rtant
• Shaded 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).
15. Suction reed plate (14).
16. Valve plate (13).
17. Head gasket (12).
18. Front head (11).
A. O-Ring Seal Seat Recess
B. T hum b Screw
24. C ylin d e r Seal (Lubricated)
23. Rear C ylin de r
11. Front Head
Figure 3 0 — Installing the O-Ring Seals on the
Cylinder Seal Races
HR-6 AIR CONDITIONING COMPRESSOR 1B5-11
A. O pening to Rear S u ctio n Port
B-06177
B. Through B o lt 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 pening into H igh
28. Rear Head
Figure 31— Positioning the J-33016 Guide Pins
2
.
B-06476
(12 O 'C lock P o sition A sse m b ly Reference)
Pressure R elief Valve Area
131
C lean
All parts.
I?
Inspect
• All parts and replace as necessary.
COMPRESSOR ASSEMBLY
—INTERNAL CYLINDER
AND SHAFT
Install or C o n n ect (F ig u res 4, 31 th ro u g h 39)
Tools Required:
J 21352-A Support Block
J 33016 Cylinder A lignm ent Rods
J 33026 Com pressor Holding Fixture
Use new seals and gaskets.
Place J 21352-A on the workbench or suitable flat
work surface.
Rear head (28) onto J 21352-A.
• Install J 33016 guide pins small diam eter ends
into the through bolt holes (figure 31).
Head gasket (27).
• Over guide pins into head (28) (figure 32).
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 32).
J 33016
21352-A
B-06726