Pontiac FIREBIRD 1972 Service Manual page 7

GENERAL INFORMATION AND LUBRICATION
0- 5
CAUTION: If to wing distance is more than 50
miles, tow from rear or disconnect p r o p e l .
shaft. Do not exceed 30 m.p.h.
Always place a rubber mat or other suitable material be-
tween the bumper and the tow chains or cables.
For front end lifting, place chains or cables around the
ends of the frame side rails at both sides.
All models can be towed short distances without discon-
necting the propeller shaft except in cases where the key
is not available to unlock the steering column and trans-
mission. In such a case, the propeller shaft must be discon-
nected and the car towed from the front. Where the
transmission or propeller shaft has possibly been subject
to failure or damage, the propeller shaft must be discon-
nected from the differential and wired to the tailpipe or car
must be towed with rear wheels off the ground. If the
propeller shaft is disconnected and the "U" joint bearing
retaining strap is broken, wrap tape around the bearing
caps to prevent loss. When towing with the rear wheels off
the ground, the steering wheel must be centered and held
in position by a steering wheel holding clamp or by tying
it to the window division channel. Tire to ground clear-
ance should not exceed 6 inches while towing the car.
IGNITION AND TRUNK LOCKS
REMOVE
1. Remove lock assembly from steering column. See
Section 9.
2. Production Lock is not serviceable and should be
discarded.
ANCHOR ADAPTOR
CYLINDER
I
,
WASHER STOP
/
\
A N T I - R A ~ E SLEEVE
WASHER ASSEMBLY
I
Fig. 0-1 1 Exploded View of Lock Cylinder
NOTE: In the event that the old tumblers are to
be re-used, the following procedure may be
used to disassemble the lock cylinder.
A. Pry off gate adapter stop ring. (Fig. 0-1 1).
B. With key inserted in lock, turn counterclockwise
to stop (accessory position).
C. Using suitable pick, depress brass pin in slot on
side of cylinder as shown in Fig. 0-12.
D. It will be necessary to fashion a pick and insert
this behind the cylinder wall to depress the brass
pin.
E. While holding pin depressed, turn key and lock
slightly and pull lock assembly out of cylinder
approximately 1/8".
F. Pull key out of lock assembly approximately two
(2) teeth and, using suitable pick, slide or shake
plastic retainer in end of lock toward pin side of
cylinder as shown in Fig. 0- 13.
G. Pull key and lock assembly out of cylinder.
H. Pry off tumbler retainer, unscrew springs, and
remove tumblers.
I. Retain tumblers and discard lock cylinder.
CODING SIDE BAR LOCK
Two separate keys are used; type "C" (square) for ignition
switch, door locks and tailgate and type "D" (oval) for the
Fig. 0-1 2 Depressing Lock Cylinder Retaining Pin