Chevrolet 30 Series 1967 Service Manual page 396

CLUTCHES AND TRANSMISSIONS 7-10
The clutch used on all 292, 283 and 327 cubic inch and
Diesel truck engines is a coil spring single plate dry disc
type, no adjustment for wear being provided in the clutch
itself. An individual adjustment is provided for locating
each lever in manufacturing but the adjusting nut is
locked in place and should never be disturbed, unless the
clutch is dismantled for replacement of parts.
When the clutch pedal is depressed the release bearing
is moved toward the flywheel and contacts the inner ends
of the release levers, (1) (fig. 19). Each release lever is
pivoted on a floating pin which remains stationary in the
lever and rolls across a short flat portion of the enlarged
hole in the eyebolt (2). The outer end of each release
lever engages the pressure plate lug by means of a strut
(3), which provides knife-edge contact between the outer
end of the lever and the lug. The outer ends of the eye-
bolts extend through holes in the stamped cover (4), and
are fitted with adjusting nuts (5) to correctly position the
levers.
CLUTCH ASSEMBLY
Removal From Vehicle
Before removing clutch from flywheel, mark with a
punch the flywheel, clutch cover and one pressure plate
lug, so that these parts may be assembled in their same
relative positions, as they were balanced as an assembly.
Loosen the holding screws a turn or two at a time to
avoid bending rim of cover. When removing driven plate
be sure to mark flywheel side.
NOTE: It is advantageous to place wood or
metal spacers (approximately 3/8 thick) between
the clutch levers and the cover to hold the levers
COIL SPRING CLUTCH
General D e s c r ip t io n .........................................................
Service O p eratio n s............................................................
Removal from Vehicle
Installation to V e h ic le ...................................................
GENERAL DESCRIPTION
SERVICE OPERATIONS
TWO PLATE COIL SPRING CLUTCH
General D e s c r ip t io n .........................................................
Service O p eratio n s............................................................
Removal from V eh icle...................................................
Installation in Vehicle & Lever Adjustment
IN DEX
................................................
Fig. 19- Release Lever
1. Release Lever
2. Eyebolt
3. Strut
down as the holding screws are removed or when
clutch is removed from engine.
Installation to Vehicle
1. Assemble driven plate and clutch cover assembly to
flywheel in accordance with marking on driven plate
for flywheel side.
2. Line up the driven plate assembly and the pilot bear­
ing with a dummy shaft before tightening cover hold­
ing screws. Tighten holding screws before removing
dummy shaft.
3. After transmission has been assembled, adjust pedal
as described under "Clutch Pedal Adjustments,"
"Hydraulic Clutch Controls."
...............
Page
7-10
7-10
7-10
7-10
4. C over
5. Adjusting Nut
Page
7-11
7-11
7-11
7-11
CHEVROLET TRUCK SERVICE M ANUAL