Centering Spring Adjustment - Pontiac tempest 1968 Service Manual

15-1
A C C E S S O R I E S
CONTENTS OF THIS SECTION
SUBJECT
PAGE
SUBJECT PAGE
Cruise Control . 15-1
Chain Linkage Adjustment . . . . . . . . . 15-1
Release Switch Adjustment 15-1
Centering Spring Adjustment 15-1
Cable and Gear Check 15-6
Regulator Removal 15-6
Regulator Overhaul 15-7
Clock 15-9
Safeguard Speedometer 15-10
Auxiliary Gauges 15-11
Hood Mounted Tachometer 15-12
Instrument Panel Tachometer 15-12
Electric Deck L i d Release 15-13
Vacuum Door Locks . „ 15-15
Rear Window Defogger . . • . . 15-15
Console . 15-16
Radio and Front Speaker 15-23
Manual Antenna . . 15-29
Electric Antenna • . 15-29
Reverberation 15-33
Stereo-Radio 15-35
Stereo Tape Player • . 15-41
Multiplex-Tape Player Switch . . . . . . . . 15-46
Stereo Rear Speakers 15-46
Rear Seat Speaker . . . 15-46
CRUISE CONTROL
CHAIN LINKAGE ADJUSTMENT
1. Start engine and set carburetor to hot idle
position.
2. Thread bead chain thru hole in carburetor lever
extension (Fig. 15-1).
3. Adjust bead chain (at extension) to provide m i n ­
imum chain slack and assemble clip to extension by
straddling extension.
4. A minimum of two beads must extend outside
of clip after adjustment of chain and installation of
clip. Cut off excess chain.
BRAKE RELEASE SWITCH ADJUSTMENT
(Fig. 15-2)
PONTIAC AND TEMPEST
Apply brake pedal and push both switches forward
as far as possible. Pull pedal forcibly rearward to
adjust switches.
FIREBIRD
While holding brake pedal rearward, adjust
switches so that plungers are fully depressed against
a r m .
CENTERING SPRING ADJUSTMENT
(Fig.
1 5 - 3 )
1. If Cruise Control holds speed three or more
mph higher than selected speed, turn centering spring
adjusting screw (C) clockwise 1/8" turn or less.
2. If Cruise Control holds speed three or more
mph below selected speed, turn centering spring ad­
justing screw (C) counterclockwise 1/8" turn or less.
CA UTION: Do not move adjustment screw (R).
See below under Disassembly.
V A C U U M SOURCE
V A C U U M T O S E R V O \
J
mm
C E N T E R I N G SPRING
ADJUSTMENT S C R E W
Fig. 15-3 Adjustment Screw Identification