Table Of Contents; Air Conditioning Compressor - Chevrolet 1980 Light Duty Truck Repair Manual

AIR CONDITIONING COMPRESSOR

Conditioning
E V A C U A T IN G A N D C H A R G IN G P R O C E D U R E S F O R C.C.O.T.
A /C SYSTEM S, see A ir C onditioning Section.
CONTENTS OF THIS SECTION
M inor Repair Procedures for the A -6
C om pressor......................................................................... ID-2
A -6 Compressor Clutch Plate and
H ub A sse m b ly ................................ ............................. 1D-2
A -6 Compressor P ulley and Bearing
A ssem b ly......................................................................... ID-5
A -6 Compressor Pulley B earing................................ ID-7
A -6 Compressor C lutch Coil and
H ousing A ssem b ly ...................................................... ID-7
Major A -6 Compressor Repair
P roced u res.......................................................................... 1D-8
A -6 Compressor Shaft Seal.......................................... ID-9
Seal Leak D e te c tio n .................................................. ID-9
A -6 C om pressor Pressure R elief
Valve or Pressure S w itc h ...................................... .. ID -11
A -6 C om pressor Cylinder and Shaft
A ssem b ly......................................................................... ID -11
R em o v a l.......................................................................... ID -12
D isa ssem b ly ................................................................... 1D-14
G aging O peration........................................................ ID -15
A -6 Teflon Piston R ing
R eplacem ent.............................................................. ID -19
A ssem b ly......................................................................... ID -19
R e-Install......................................................................... 1D 21
M inor Repair Procedures for the R-4
C om pressor......................................................................... ID-26
R -4 Compressor Clutch Plate and
Hub A sse m b ly ............................................................. ID-26
R -4 Compressor Clutch R otor
a n d /o r B earin g ............................................................ 1D-26
R eplace R otor and Bearing
For all practical purposes, all vehicles m ake use o f the
sam e air conditioning 4 and 6-cylinder com pressors. A ctual
differences between com pressors
m ounting brackets, pulleys, connector assemblies and
com pressor capacitires, none o f which w ill affect the
follow ing Overhaul Procedures.
W hen servicing the com pressor, it is essential that steps
be taken to prevent dirt or foreign material from getting on
or into the com pressor parts and system during disassembly
or reassembly o f the com pressor. C L E A N TOOLS A N D
C L E A N W O R K A R E A A R E V E R Y IM P O R T A N T FO R
PR O P E R SER VICE. The com pressor connection areas and
AIR CO NDITIO NING COMPRESSOR OVERHAUL 1D-1
SECTION 1D
OVERHAUL
For Compressor R E M O V A L A N D IN S T A L L A T IO N , see Air
Section. For D IS C H A R G IN G ,
are found in their
A D D I N G
Assem bly (On C ar)..................................................ID -30
R eplace R otor and Bearing
A ssem bly (On B e n c h )............................................ID-31
R -4 Compressor Clutch Coil
a n d /o r P ulley R im ..................................................... ..ID-32
R -4 Compressor Inertia R ing
In stallation ..................................................................... ..ID-32
Major R -4 Com pressor Repair
P roced ures.......................................................................... ..ID-34
R -4 Compressor Shaft S ea l............................................ID -35
Seal Leak D e te c tio n .....................................................ID-35
R -4 Com pressor Shaft Seal
R eplacem ent (On C a r )...........................................ID -35
R -4 Com pressor Shaft Seal
Replacem ent (O ff C a r)...........................................ID-37
R -4 Compressor Pressure R elief
Valve or Pressure S w itc h ...........................................ID -37
R -4 Compressor Front H ead
an d /o r O -R in g ...................
R -4 Com pressor Thrust and
Belleville W ashers..........,..............................................ID -39
R-4 Compressor M ain B earing.................................. ..ID-39
R -4 Compressor Shell a n d /o r
O -R in g s........................................................................... ..ID-39
R -4 Compressor D ischarge Valve
Plate a n d /o r R eta in er..................................................ID-41
R -4 Compressor Cylinder and
Shaft A ssem b ly ................................................................ID-42
A -6 and R -4 Comp. Leak Testing
(External and In tern a l)............................................ ...1D-42
exterior o f the com pressor should be cleaned off as much
as possible prior to any "on car" repairs or removal o f the
com pressor for workbench service. The parts must be kept
clean at all times and any parts to be reassembled should
be cleaned w ith
kerosene or equivlent solvent and dried off with
When necessary to use a cloth on any part, it should be o f
a non-lint producing type.
A lthough certain service operations can be performed
without com pletely rem oving the com pressor from the
vehicle, the operations described herein are based on bench
over-haul with the com pressor rem oved from the vehicle.
OIL,
4
......................................... ..ID-37
naphtha, Stoddard solvent,
dry
air.