
GENERAL INFORMATION 0-7
a vise using leather or wood on each side to prevent
damage to the cylinder,
7. Stake the retainer securely in place by staking the
cylinder metal over both edges of the retainer ends
using a suitable staking tool at right angles to the
top of the retainer and from the cast metal of the
cylinder over the retainer at each corner.
PUSHING, TOWING AND LIFTING
Pushing
NOTE:
Towing car to start is not recommended
due to the possibility of the disabled car ac-
celerating into tow car.
AUTOMATIC TRANSMISSION
Do not attempt to start the engine by pushing the car.
Should the battery become discharged, it will be neces-
sary to use an auxiliary battery with jumper cables to
start the engine.
CAUTION: To prevent damage to electrical
system, never connect booster batteries in ex-
cess of 12 volts and connect positive to positive
and negative to negative.
Manual Transmission
When a push start is necessary turn off all electrical
loads such as heater, radio, and if possible, lights, turn
on the key, depress the clutch, and place the shift lever
in high gear. Release the clutch when your speed reaches
10 to 15 miles per hour.
TOWING
The car may be towed safely on its rear wheels with
the (selector lever in "N" (Neutral) position at speeds
of 35 miles per hour or less under most conditions.
However, the drive shaft must be disconnected or the
car towed on its front wheels if 1) Tow speeds in excess
of 35 MPH are necessary, 2) Car must be towed for ex-
tended distances (over 50 miles) or, 3) Transmission is
not operating properly. If car is towed on its front
wheels, the steering wheel should be secured to maintain
a straight ahead position.
DRIVE ON HOIST
BUMPER JACK LIFTING AT FRAME ATTACHMENT ONLY
FLOOR JACK OR HOIST LIFT
Fig.
21-Vehicle Lifting Pointe-Chevroiet
CHEVROLET CHASSIS SERVICE MANUAL

HEATER AND AIR CONDITIONING 1A-43
LOW PRESSURE
CONTROL
HIGH PRESSURE
CONTROL
3
VACUUM
CONTROL
4
FREON
CONTROL
Fig,
56—Charging Station Controls
3.
When the pressure is reduced to below 100 pounds
on the high pressure gauge, open the low pressure
gauge valve and continue discharging until all re-
frigerant has been released. Close both gauge valves.
EVACUATING AND CHARGING THE SYSTEM
GENERAL NOTE: La all evacuating procedures
shown below, the specification of 26-28 inches
of Mercury vacuum is used. These figures are
only attainable at or near Sea Level Elevation.
For each 1000 feet above sea level where this
operation is being performed, the specifications
should be lowered by 1 inch. Example: at 5000
ft. elevation, only 21 to 23 inches of vacuum can
normally be obtained.
Whenever the air conditioning system is open for any
reason, it should not be put into operation again until it
has been evacuated to remove air and moisture which
may have entered the system.
The following procedures are based on the use of the
J-8393 Charging Station.
Filling Charging Cylinder
1.
Open control valve on refrigerant drum.
2.
Open valve on bottom of charging cylinder allowing
refrigerant to enter cylinder.
3.
Bleed cylinder valve on top (behind control panel) as
required to allow refrigerant to enter. When re-
frigerant reaches desired level (see "Air Condition-
ing System Capacities"), close valve at bottom of
cylinder and be certain bleed valve is closed
securely.
NOTE: It will be necessary to close bleed valve
periodically to allow boiling to subside to check
level in sight glass.
Installing Charging Station to System
1.
Be certain all valves on charging station are closed.
2.
Connect high pressure gauge line to high pressure
gauge fitting. (See "Installing Gauge Set to Check
System Operations.")
3.
See Figure 56. Turn high pressure control (2) one
turn counter-clockwise (open). Crack open low pres-
sure control (1) and allow refrigerant gas to hiss
from low pressure gauge line for three seconds,
then connect low pressure gauge line to low pressure
gauge fitting.
4.
System is now ready for performance testing.
Evacuating and Charging System
1.
Install charging station as previously described.
Refer to Figure 56 and 57 while performing the
following operation.
2.
Remove Low Pressure gauge line from compressor.
3.
Crack open high (2) and low (1) pressure control
valves, and allow refrigerant gas to purge from
system. Purge slow enough so that oil does not
escape from system along with Refrigerant.
4.
When refrigerant flow stops, connect Low Pressure
gauge line to compressor.
5.
Turn on vacuum pump and open Vacuum Control
Valve (3).
6. With system purged as above, run pump until 28-29
inched of vacuum is obtained. Continue to run pump
for 15 minutes after the system reaches 28-29 inches
vacuum.
7.
If 28-29 inches cannot be obtained, close Vacuum
Control Valve (3) and shut off vacuum pump. Open
Refrigerant Control Valve (4) and allow 1/2 pound of
R-12 to enter system. Locate and repair all leaks.
8. After evacuating for 15 minutes, add 1/2 pound of
R-12 to system as described in Step 7 above. Purge
this 1/2 pound and reevacuate for 5 minutes. This
second evacuation is to be certain that as much con-
tamination is removed from the system as possible.
9. Only after evacuating as above, system is ready for
charging. Note reading on sight glass of charging
cylinder. If it does not contain a sufficient amount
for a full charge, fill to the proper leveL
10.
With High and Low pressure Valves (1 and 2) open,
close Vacuum Control Valve (3) and open Freon
Control Valve (4). Operating the heater and air
conditioner blower with the controls set for cooling
will help complete the charging operation.
NOTE: If the charge will not transfer com-
pletely from the station to the system, close
the high pressure valve at the gauge set, set
the air conditioning controls for cooling, check
that the engine compartment is clear of ob-
structions, and start the engine. Compressor
operation will decrease the low side pressure
in the system.
System is now charged and should be performance
tested before removing gauges.
CHECKING OIL
In the six cylinder compressor it is not recommended
that the oil be checked as a matter of course. Gener-
ally, compressor oil level should be checked only where
there is evidence of a major loss of system oil such as
might be caused by:
• A broken refrigerant hose.
• A severe hose fitting leak.
CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-15
Fig.
32—Removing Regulator
GLASS RUN CHANNEL-REAR
Removal
For parts identification refer to Figure 41.
1.
Remove door trim assembly as outlined in this
section.
2.
Remove window glass assembly as outlined in this
section.
3.
Remove 2 channel retaining screws and pass chan-
nels out through large opening in door inner panel
(fig. 42).
Fig.
33—Removing Ventilator Assembly 19437
Installation
1.
Position run channel in door and install bolts loosely.
2.
Install window glass as outlined in this section.
3.
Make necessary adjustments to channel as outlined
under Doors - Adjustments - Door Windows.
4.
Replace door window and door trim panel.
WINDOW REGULATOR-MANUAL
For parts identification see Figure 41.
Removal
1.
Remove trim panel as outlined in this section.
2.
Remove door window glass as outlined in this
section.
3.
Remove screws retaining regulator assembly to
door panel.
4.
Remove screws holding lower guide rail to door
panel.
5. Remove regulator assembly from large access open-
ing as shown in Figure 43.
Installation
Regulator may be installed by following removal pro-
cedure in reverse order. Always lubricate all guide rails
and rollers when regulator is disassembled. Test regula-
tor thoroughly before installing door trim panel. Adjust
window as outlined in this section.
WINDOW REGULATOR-POWER
In cases where window will not operate, check electri-
cal connections first. Figure 44 illustrates lpcation of
junctions, switches and circuit breaker.
Removal
Perform operations 1 thru 5 under Window Regulator-
Manual Removal. Note, however, that electrical connec-
tors must be removed from motor before performing
any operation on regulator. Figure 44 illustrates in-
stallation of regulator on door and regulator wiring.
Disassembly
NOTE:
Do not attempt to remove motor from
regulator until the following operations are per-
formed. THIS IS A SAFETY ITEM; arm is
spring-loaded and may cause injury if not locked
in position when motor is removed.
Refer to Figure 45.
1.
Place regulator assembly in vise.
2.
Using jumper leads to 12 volt power supply, operate
motor until semi-circular hole in sector gear cen-
ters over one of two weld nuts on mounting plate.
3.
Screw a l/4"-20 x 1" bolt into weld nut so that end
passes through hole in sector gear. It may be neces-
sary to enlarge hole in gear slightly with file or
drill. Install nut on bolt to lock arm in position.
Installation
1.
Be sure lock bolt has been removed if regulator
has been disassembled.
2.
Install lubricated regulator assembly and guide rails
in door in reverse order of removal.
3.
Install window as outlined in this section.
4.
Making sure connectors are securely installed on
motor, test operation of window thoroughly.
5. Install door trim panel and handles as outlined in
this section.
CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-T9
Fig.
43—Removing Regulator Assembly
REAR QUARTER
DOOR SILL PLATE AND MOLDING
Figure 49 shows assembly details of both the door sill
plate and molding. The sill plate which retains the car-*
pet, the cowl trim windlace and lock pillar front edge
trim are retained to the body by six screws.
The molding assembly, which replaces a rocker panel,
is quickly and easily replaced by removing 10 retaining
screws. The sill molding retainer is also fastened to the
body with screws.
REAR END
FOLDING TOP COMPARTMENT LID
Adjustments
Hinges
The folding top compartment lid should be adjusted so
that in the closed position the surface of the lid is flush
with surrounding body surfaces and space between lid
edge and body is 1/16" to 3/16" at sides and 3/16" to
1/4" at rear. Whenever lid position is changed on hinges,
lock engagement must be inspected and adjusted if neces-
sary. Adjust hinge position as follows:
1.
Scribe a line on lid surface following contour of hinge
strap.
This will ease observation of lid movement
during adjustment (fig. 51).
2.
To raise or lower top surface of lid, add or remove
hinge shims.
3.
To adjust spacing between lid edges and body, loosen
hinge-to-lid screws and shift lid as required.
Lock
Lock engagement may be adjusted as follows:
1.
Striker plates may be shimmed to adjust the depth
of lock engagement in striker plate. When this ad-
justment is made, release of lock should be tested
and adjusted as required.
2.
Release of lock may be adjusted by loosening lock
assembly retaining bolts and moving lock in ap-
propriate direction to the limit of slotted holes in
, lock base. Further adjustment may be gained by
moving cable retainer in appropriate direction.
Hinges
(Refer to Figure 52)
Removal
1.
Scribe around hinge as shown in Figure 51.
2.
Hinge may be removed as an assembly by opening
top compartment lid fully and removing 3 retaining
screws. Note number of shims found between hinge
frame and compartment floor.
3.
To remove spring from hinge assembly, close top
compartment lid as far as possible and insert Tool
J-9559 between expanded coils in spring. Opening
top compartment lid fully will allow removal of
spring as shown in Figure 53.
4.
As soon as spring is removed, insert long bolt sup-
plied with J-9559 through holes in end of tool, pass-
ing it through spring, and install nut on bolt.
Spring may be removed from J-9559 or J-9559 may be
installed in a new spring, by the following method:
1.
Place a closed 6 or 8 inch "C" clamp in a vise or
fasten it to a heavy bench top (bench should be fas-
tened to floor).
2.
Hook one end of spring in clamp and the other end
in hook of chain hoist, "cherrypicker" or equivalent,
as shown in Figure 54.
3.
Stretch the spring enough to allow insertion of
J-9559. Install through bolt if spring is not to be in-
stalled on hinge at once.
installation
1.
Install same number of shims as removed or, if
repairing collision damage, etc., position hinge in
compartment, install upper mounting screws, fill
gap between floor and hinge frame with shims and
install lower mounting screw.
2.
If spring has been removed from hinge, install
spring in J-9559 and place spring on hinge with com-
partment lid raised; closing lid releases J-9559 for
removal. Upper end of spring should rest in one of
three notches yielding best lid operation. About 3
pounds pressure should be necessary to close lid.
Lock
Removal
1.
Remove cable mounting clamps. Remove retainer
from control cable assembly and disengage cable
from control.
2.
Scribe a mark on lid following outer contour of lock
assembly.
3.
Remove 3 lock assembly retaining screws and re-
move lock from compartment lid.
Installation
1.
Place lock assembly on compartment lid within
scribed line and install retaining screws.
2.
Install end of cable in control assembly and fasten
retainer securely.
3.
Test operation of lock thoroughly, adjusting if neces-
sary as outlined in this section.
Control
Removal
1.
Remove inner mounting clamps from both cables
and disengage cables from control by removing
retainers.
CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY
1B-20
DOOR
Fig.
44—Power Window Regulator
2.
Remove
4
mounting screws and remove control from
compartment
lid.
Installation
*
1.
Position control
on
compartment
lid and
install
mounting screws.
2.
Install ends of cables in control and fasten securely
with retainers.
3.
Test operation of locks and adjust if necessary.
CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY 1B-21
Fig.
45—
Locking Regulator Arm in Place
REAR WINDOW-ADHESIVE CAULKED-
19437 MODEL
For parts identification refer to Figure 55.
1.
Remove the 2 rear window garnish moldings by re-
moving the 14 attaching screws.
2.
Pry molding caps from reveal moldings.
3.
Carefully remove lower, side, and top reveal mold-
ings after marking their position on body with tape.
4.
Secure one end of steel music wire to piece of wood
for handle. Insert other end through caulking mater-
ial at lower corner of rear window; then secure end
of wire to another piece of wood (fig. 56).
5. With the aid of helper, carefully cut through caulking
material (using a sawing motion) with the steel wire;
up side of window, across top, down opposite side,
and across bottom of window.
6. Remove old glass from window opening.
7. Using a sharp scraper or wood chisel, remove ad-
hesive caulking material from body pinchweld flange.
NOTE:
It is not necessary to clean off all the
old caulking material completely from body
opening; however, there should not be any loose
pieces of caulking material left in the opening.
8. Check all reveal molding retaining clips for damage
(24 required). Replace those that are bent or dis-
torted with clips provided in kit.
9. Using weatherstrip adhesive, cement rubber spacers
at bottom, sides, and top of window opening. The
step-type spacers are used at bottom and sides, the
flat type are used at the top, sides, and bottom of
window opening as shown on Figure 55.
10.
Using suction cup holders, position replacement
glass in body opening. Carefully check relationship
of glass to body pinchweld completely around open-
ing. The overlap of glass to body pinchweld and re-
taining flanges should be equal with a minimum over-
lap of 3/16M. Where necessary, position shims under
the lower spacers to obtain required overlap of glass
to body upper and lower flanges.
11.
After proper glass to pinchweld relationship has
been attained, mark position with grease pencil on
glass and body as shown in Figure 57.
12.
Remove glass from body opening and place on pro-
tected surface.
13.
Clean inside edge surface of glass so that glass is
free of any foreign material (oil, grease, etc.).
Using 3/4" masking tape, place tape approximately
1/2 inch from edge of inside surface of glass com-
pletely around glass. Then apply a film of silane
primer to inside edge surface completely around
glass,
also apply silane primer to sealing surface
of pinchweld as shown in Figure 58.
Fig.
46—Door Lock and Remote Controls
1.
Door Lock Remote Control
Assembly
2.
Door Lock Remote Control Knob
3. Door Lock Remote Control Rod
4.
Remote Control Locking Rod
5. Remote Locking Control
Assembly
6. Lock Assembly
CHEVROLET CHASSIS SERVICE MANUAL

CORVETTE BODY
1B-47
REAR
BOW
ASSY.
VIEW
C
Fig.
101—Folding
Top
Adjustments
MATERIAL
FOR
ATTACHMENT
FRONT HEADER PANEL
PAD
WIRE-ON
BINDING
WINDOW
EXTENS
SECTION
E-E
AY STRAP
SECTION
A-A
CEMENT SECURELY
REAR RAIL ONLY
Fig.
102—Folding
Top
Trim Installation
1.
To
remove superficial dust,
do not use a
dry cloth.
Use
a
soft cotton cloth moistened with water
and
wipe cross-wise
of
the window.
2.
To
wash
the
rear window,
use
cold or tepid (not hot)
water
and a
mild neutral soap suds. After washing,
rinse with clear water
and
wipe with
a
slightly
moistened clean soft cloth.
A
high quality plastic
window cleaner
is
available from Chevrolet parts
sources.
CHEVROLET
Oi
SERVia

CORVETTE BODY
1B-51
Fig.
Ill-Side Rail Weatherstrips
appear
if the
parts were cut through on the lettered lines
on
the top
assembly and the
cut
surface exposed. Arrows
indicate direction
in
which
you
would have
to
look
in
order
to see
the view shown.
Before
old
trim assembly
is
removed,
top
should
be
thoroughly adjusted
as
outlined
in
this section.
As
loose
parts
are
removed such
as
stay -straps
and
pads, their
installed positions should
be
marked
as an aid to in-
stallation
of
replacements.
Removal
1.
Remove rear side rail window sealing weatherstrip
as explained further
on in
this section; also remove
screws from ends
of
header inner weatherstrip.
Note, however, that
it is not
necessary
to
remove
header weatherstrip entirely
and
that header strip
must
be- in
place during final installation procedures
of
top
trim
so
that correct tension
of
installed trim
is achieved.
2.
Remove tacks securing
top and
header outer
weatherstrip
to
header (Figure
103).
3.
Pull cemented trim from rear side rail (Section
C-C).
REWORK PART
6280765
^GRIND
OFF
THIS PORTION
COAT
TIP
WITH GREASE PENCIL.
II INSTALL
IN
BOLT RETAINING SLOT
LOCATE
TIP
INBOARD
(BOTH SIDES)
APPLY PRESSURE
TO
MARK
LID,
DRILL,
AND
INSTALL
ATTACHING PARTS (BOTH SIDES)
Fig.
113—Hardtop Attachments
at
Rear
Bow
4.
Remove end caps from wire-on binding; remove
tacks securing binding to #3 bow (View F.). See
frame and linkage portion for bow identification.
5.
Remove staples securing trim to #3 bow.
6. Remove tacks securing upper ends of stay straps to
#3 bow. Pads may be removed at this time, if de-
sired. Mark position of pads and straps on head and
#3 bow before removal.
7.
Disconnect rear bow from top frame assembly. Two
screws retain at each side Figure 104.
8. Remove trim-rear bow assembly from vehicle to
clean work bench or table.
9. Remove plastic filler from' rear bow weatherstrip
MARK, DRILL
AND
INSTALL
ATTACHING PARTS (BOTH SIDES)
Fig.
112-Header Weatherstrip
Fig.
114—Hardtop Attachments
at
Lock Pillar Area
CHEVROLET CHASSIS SERVICE MANUAL