fold seats CHEVROLET DYNASTY 1993 Service Manual

length of the spring to be tested is 33.34mm (1-5/16
inches). Turn table of Tool C-647 until surface is in line
with the 33.34mm (1-5/16 inch) mark on the threaded
stud and the zero mark on the front. Place spring over
stud on the table and lift compressing lever to set tone
device. Pull on torque wrench until ping is heard. Take
reading on torque wrench at this instant. Multiply this
reading by two. This will give the spring load at test
length. Fractional measurements are indicated on the
table for finer adjustments. Refer to specifications to
obtain specified height and allowable tensions. Discard
the springs that do not meet specifications.
VALVE INSTALLATION
(1) Coat valve stems with clean engine oil and insert
them in cylinder head. (2) Check valve tip to spring seat dimension A after
grinding the valve seats or faces. Grind valve tip to give
49.541 to 51.271 mm (1.950 to 2.018 inch.) over spring
seat when installed in the head (Fig. 17). Check valve
tip for scoring, if necessary, the tip chamfer should be
reground to prevent seal damage when the valve is
installed. (3) Install new cup seals on all valve stems and over
valve guides (Fig. 24). Install valve springs and valve
retainers.
(4) Compress valve springs with Valve Spring Com-
pressor Tool C-3422-B, with adapter 6412 install locks
and release tool. If valves and/or seats are re-
ground, measure the installed height of springs
dimension B, make sure measurements is taken
from top of spring seat to the bottom surface of
spring retainer. If height is greater than 1-19/32
inches, (40.6mm), install a 1/32 inch (.794mm)
spacer in head counterbore to bring spring
height back to normal 1-17/32 to 1-19/32 inch (39.1
to 40.6mm) .
REPLACE VALVE STEM SEALS OR VALVE
SPRINGS, CYLINDER HEAD NOT REMOVED
(1) Perform fuel system pressure release procedure
before attempting any repairs (2) Disconnect negative battery cable. (3) Remove Air Cleaner Cover and hose assembly.
(4) Remove Intake Manifold; Refer to
Intake/Exhaust Manifold 3.3/3.8L Engine Group 11
Exhaust System and Intake Manifolds of this manual
for removal procedure. (5) Remove cylinder head covers and spark plugs.
(6) Remove connector wire from ignition coils.
(7) Using suitable socket and flex handle at crank-
shaft pulley retaining screw, turn engine so the num-
ber 1 piston is at Top Dead Center on the compression
stroke. (8) Remove rocker arms with rocker shaft and in-
stall a dummy shaft. The rocker arms should not be
disturbed and left on shaft. (9) With air hose attached to spark plug adapter
installed in number 1 spark plug hole, apply 90 to 100
psi air pressure (620.5 to 689 kPa). This is to hold
valves into place while servicing components. (10) Using Tool C-4682 or Equivalent compress
valve spring and remove retainer valve locks and valve
spring. (11) The intake valve stem seals should be pushed
firmly and squarely over the valve guide using the
valve stem as guide. Do Not Forceseal against top of
guide. When installing the valve retainer locks, com-
press the spring only enoughto install the locks.
CAUTION:Do not pinch seal between retainer and top
of valve guide .
(12) Follow the same procedure on the remaining 5
cylinders using the firing sequence 1-2-3-4-5-6. Make
sure piston in cylinder is at TDC on the valve
spring that is being covered. (13) Remove spark plug adapter tool .
(14) Remove dummy shaft and install rocker shaft
assembly and tighten screws to 28 N Im (250 in. lbs.).
Fig. 24 Checking Valve Installed Height
Fig. 25 Installing Valve, Cup Seal, Spring and Re-
tainer
Ä 3.3/3.8L ENGINE 9 - 107

INSTALLATION
Reverse the preceding operation. On vehicles with
automatic transaxle, verify gear selector indicator
adjustment before returning vehicle to use.
FLOOR CARPET
REMOVAL (FIG. 46)
(1) Remove cowl trim panels and scuff plates.
(2) Remove front seats and inboard seat belts.
(3) Remove center arm rest and front console.
(4) Remove outboard seat belt lower attaching
bolts. (5) Remove rear seat cushion.
(6) Pull carpet from under B-pillar trim covers.
(7) Fold carpet and remove through front door
opening.
INSTALLATION
Reverse the preceding operation.
OVERHEAD CONSOLE
REMOVAL (FIG. 47)
(1) Remove screws holding overhead console to re-
inforcement bracket. (2) Slide overhead console rearward to separate re-
inforcement bracket retainer tab from console. (3) Lower console from roof and disconnect wire
connectors.
INSTALLATION
Reverse The preceding operation.
HEAD LINING
REMOVAL (FIG. 48)
(1) Disconnect battery negative cable.
(2) Pull dome lamp downward to disengage from
retaining ring in head lining. Separate lens from
lamp body and remove bulb. Separate bulb holder
from lamp body. Remove attaching screw holding re-
taining ring to roof bow. (3) Remove screws holding coat hooks to roof above
rear doors. (4) Remove roof rail and A-pillar mouldings.
(5) Remove screws holding sun visors to roof
header and disconnect wire connector, if equipped.
Remove inboard sun visor hangers. (6) Remove overhead console, if equipped.
(7) Pull front reading lamp downward to disengage
from retaining ring in head lining and disconnect
wire connector. Remove screws holding retaining
ring to roof header. (8) Remove pinch welt holding headlining to sun
roof opening, if equipped. (9) Remove inside rear view mirror from wind-
shield bracket if necessary. (10) Disengage hook and loop fasteners holding
head lining to roof above rear window and slide head
lining forward about 25 mm (1 in.).
Fig. 45 Front Center Console
Fig. 46 Floor Carpet and Silencers
Fig. 47 Overhead Console
23 - 30 AA-BODY Ä

INSTALLATION
Reverse the preceding operation.
FRONT CENTER CONSOLE
REMOVAL (FIG. 31)
(1) Position front seats full forward.
(2) Remove rear ash tray.
(3) Remove rear lower carpeted end cover.
(4) Remove nuts holding console to floor bracket.
(5) Position front seats full rearward.
(6) Raise console storage bin cover and remove bot-
tom mat. (7) Remove screws holding bottom of storage bin to
floor bracket. (8) Remove screws holding console side panels to
instrument panel. Disengage hook and loop fasteners
and separate side panels from console. (9) Disconnect shift indicator cable and clips from
shift mechanism through right side panel opening, if
equipped with automatic transaxle. Refer to Group
8E, Instrument Panel and Gauges for proper proce-
dures. (10) Disengage clips holding parking brake lever
cover to console and separate cover from vehicle. (11) Remove center instrument panel bezel. Refer
to Group 8E, Instrument Panel. Remove screws hold-
ing console to instrument panel. (12) Remove screws holding console to lower in-
strument panel. (13) Remove bolts holding console to forward floor
mounting bracket. (14) Remove gear selector knob.
(15) Separate console from floor and remove from
vehicle.
INSTALLATION
Reverse the preceding operation.
FLOOR CARPET
REMOVAL (FIG. 32)
(1) Remove cowl trim panels and scuff plates.
(2) Remove front seats and inboard seat belts.
(3) Remove center arm rest and front console.
(4) Remove inboard and outboard seat belt lower
attaching bolts. (5) Remove left dash panel foot rest.
(6) Remove rear seat.
(7) Pull carpet from under quarter trim covers.
(8) Fold carpet and remove through door opening.
INSTALLATION
Reverse the preceding operation.
Fig. 30 Rear Seat Cushion and Back
Fig. 31 Center Console
Fig. 32 Floor Carpet and SilencersÐTypical
23 - 64 AG-BODY Ä

(4) Remove nuts holding console to floor bracket.
(5) Position front seats full rearward.
(6) Raise console storage bin cover and remove bot-
tom mat. (7) Remove screws holding bottom of storage bin to
floor bracket. (8) Remove screws holding console side panels to
instrument panel. Disengage hook and loop fasteners
and separate side panels from console. (9) Disconnect shift indicator cable and clip from
shift mechanism through right side panel opening, if
equipped with automatic transaxle. Refer to Group
8E, Instrument Panel and Gauges for proper service
procedures. (10) Disengage clips holding parking brake lever
cover to console and separate cover from vehicle. (11) Remove center instrument panel bezel. Refer
to Group 8E, Instrument Panel. Remove screws hold-
ing console to instrument panel. (12) Remove screws holding console to lower in-
strument panel. (13) Remove bolts holding console to forward floor
mounting bracket. (14) Remove gear selector knob.
(15) Separate console from floor and remove from
vehicle.
INSTALLATION
Reverse the preceding operation.
FLOOR CARPET
REMOVAL (FIG. 20)
(1) Remove cowl trim panels and scuff plates.
(2) Remove front seats and inboard seat belts. (3) Remove center arm rest and front console.
(4) Remove outboard seat belt lower attaching
bolts. (5) Remove left dash panel foot rest.
(6) Remove rear seat cushion.
(7) Pull carpet from under quarter trim covers.
(8) Fold carpet and remove through door opening.
INSTALLATION
Reverse the preceding operation.
OVERHEAD CONSOLE
REMOVAL (FIG. 21)
(1) Remove screws holding overhead console to re-
inforcement bracket. (2) Slide overhead console rearward to separate re-
inforcement bracket retainer tab from console. (3) Lower console from roof and disconnect wire
connectors.
INSTALLATION
Reverse The preceding operation.
Fig. 19 Center Console
Fig. 20 Floor Carpet and SilencersÐTypical
Fig. 21 Overhead ConsoleÐTypical
23 - 80 AJ-BODY Ä

REAR SEAT BACK INSTALLATION
Reverse the preceding operation.
SEAT BACK BOLSTER CUSHION REMOVAL (FIG. 37)
(1) Remove rear seat cushion and back as neces-
sary. (2) Remove bolts holding outboard seat back bol-
ster to quarter panel. (3) Lift bolster upward to disengage hook retainer
on back of bolster and separate from vehicle.
SEAT BACK BOLSTER CUSHION INSTALLATION
Reverse the preceding operation
FRONT CENTER CONSOLE
REMOVAL (FIG. 38)
(1) Position front seats full forward.
(2) Remove gear selector knob and PRNDL on ve-
hicles with automatic transaxle. Remove illumina-
tion lamp socket and position socket out of the way. (3) Lift gear shift boot adapter from console and
push adapter through opening in console on vehicles
with manual transaxle. (4) Remove bolts holding arm rest riser to floor
bracket. (5) Separate rear console from floor and remove
from vehicle. (6) Position front seats full rearward.
(7) Remove radio bezel from instrument panel. Re-
fer to Group 8E, Instrument Panel. Remove screws
holding console to instrument panel. (8) Remove screws holding forward console to
lower instrument panel rail. (9) Remove screws holding forward console to for-
ward brace. (10) Separate forward console from vehicle.
INSTALLATION
Reverse the preceding operation. Verify PRNDL
adjustment before returning vehicle to use.
FLOOR CARPET
REMOVAL (FIG. 39)
(1) Remove cowl trim panels and scuff plates.
(2) Remove front seats and inboard seat belts.
(3) Remove center arm rest and front console.
(4) Remove outboard seat belt lower attaching
bolts. (5) Remove rear seat cushion.
(6) Pull carpet from under B-pillar trim covers.
(7) Fold carpet and remove through front door
opening.
INSTALLATION
Reverse the preceding operation.
OVERHEAD CONSOLE
REMOVAL (FIG. 40)
(1) Remove screws holding overhead console to re-
inforcement bracket. (2) Slide overhead console rearward to separate re-
inforcement bracket retainer tab from console. (3) Lower console from roof and disconnect wire
connectors.
Fig. 37 Rear Seat Back and Bolster
Fig. 38 Front Center Console
Ä AP-BODY 23 - 113