Pontiac Fiero 1988 Service Manual page 1275

1J-2 GENERAL INFORMATION
coded according to a number, 1 through 5, stamped on
its side.
1.
4.
5.
Assemble (Figs. 2 and 3)
Determine tumbler numbers and arrangement.
a. With numerical key code, use code list
provided by key cutting equipment supplier.
b. Without numerical key code or without
code list, refer to Figure 1.
• Lay key on key code diagram. Be sure
key is outlined by diagram.
• Start with position number one. Find
and record lowest level (tumbler
number) that is visible. Repeat for
each of the remaining five positions.
Starting with position one (open end or head of
cylinder), insert tumblers in their proper slots in
the order called for by the code (Fig. 2).
Pull side bar out with fingers so that tumblers will
drop completely into place.
Insert one tumbler spring above each tumbler.
Insert spring retainer so that end prongs slide into
the slots at each end of cylinder. Press retainer
down.
TUMBLER
SIDE B A R -
LOCK CYLINDER HEAD
-LOCK CYLINDER
G93090-1-BG
Fig. 2 - Installing T u m b l e r s
T U M B L E R S P R I N G R E T A I N E R
S T A K E
R E T A I N E R
H E R E
L O C K C Y L I N D E R H E A D
G93089-1-BG
Fig. 3 - Installing Spring Retainer
6. Insert key into lock cylinder to check for proper
installation.
1?
Inspect
Side bar will drop down if tumblers are installed
properly, If incorrectly assembled, disassemble
and reassemble correctly.
Once tumblers have been pressed down into the
cylinder, they are held by the side bar. To remove
them, hold cylinder with tumbler slots down. Pull
side bar out with fingers. Jar cylinder to shake
tumblers out.
NOTICE: Use leather or wood at each vise jaw to
. prevent damage to cylinder.
Remove key and secure cylinder in a vise with
spring retainer exposed.
Stake spring retainer securely in place at each
end. Use suitable staking tool and stake cylinder
metal over retainer.
Lubricate cylinder with a light oil.
9.
10.
Mechanical parts having contacting surfaces in
relative motion with other body parts are lubricated
during assembly. To maintain ease of operation, it is
recommended that these parts be lubricated at the
basic service intervals shown in the Maintenance
Schedule with the following lubricants:
• Door hinge - engine oil (30 weight preferred)
Apply to roller and hinge pin bushings
f l Important
Do not apply to hold-open link and roller
contacting surfaces as this could cause improper
roller operation.
• Locks, compartment lid hinge and torque rods -
Part number 1052196, Lubriplate Auto-Lube A,
Part number 1052349, Lubriplate Spray-Lube A,
3M Lithium Spray Lube No. 8915 (or
equivalent).
• Lock cylinder - a light oil.
• Seat mechanism and door hardware are covered
in the specific body area sections in this manual.
• All weatherstrips should be periodically
lubricated with a silicone paste lubricant, part no.
1052363, or equivalent. A thin film of lubricant
should be applied using a clean cloth.
WATERLEAK DIAGNOSIS AND REPAIR
GM vehicles are designed to operate under
normal environmental conditions. The design criteria
for sealing materials and components takes into
consideration the sealing forces required to withstand
the natural elements. These specifications do not, and
cannot, take into consideration all artificial conditions
such as may be encountered in some high pressure car
washes.
The watertest procedure has been correlated to
the natural elements and will determine the ability of
a car to perform under normal operating conditions.
Repairing body waterleaks is a problem of proper
testing, diagnosis and repair through adjustment of
misaligned components and/or application of proven
repair materials. The first step in waterleak diagnosis
is finding the conditions under which the leak occurs.
For example, leak noticed only when parked on an
inclined drive or water in spare tire compartment.