Clutch Cover Release Lever Adjustment - Jeep 1979 CJ-5 Technical & Service Manual

CLUTCH 2A-11
NOTE: Any change in face alignment will also change
bore alignment. In some cases, it is possible to correct
bore alignment simply by correcting face alignment
Where it is impossible to correct bore alignment to a
maximum of 0.010 inch (0.25 mm) runout (after chang-
ing face alignment), replace the clutch housing.
Alignment Check—With Transmission Adapter
Use the following procedure to check clutch housing-
to-transmission adapter alignment.
(1) Remove transmission as outlined in Chapter 2B.
(2) Remove clutch housing and adapter as assem-
bly. Do not remove adapter from housing.
(3) Remove clutch cover and driven plate.
(4) Remove one flywheel attaching bolt.
(5) Obtain 1/2-20 by 15-inch bolt and 1/2-20 nut for
use as dial indicator support.
(6) Thread nut onto bolt until 10 to 12 threads are
exposed.
(7) Thread bolt into flywheel attaching bolt hole
and tighten n u t to secure bolt.
(8) Install clutch housing and adapter assembly and
tighten housing bolts to specified torque.
(9) Mount dial indicator on bolt. Position indicator
so stylus contacts transmission mating face of adapter
about 1/8 inch from edge of adapter bore.
(10) Zero dial indicator, rotate crankshaft 360 de-
grees, and observe adapter face runout. Runout must
not exceed 0.010 inch (0.25 mm) total indicator reading
at any point through 360 degrees of rotation.
CAUTION: Crankshaft end play must be held to zero
to obtain an accurate face runout reading. Move and
hold the crankshaft forward or rearward using a pry bar
to eliminate end play.
(11) Check bore runout of adapter. Position dial in-
dicator so stylus contacts adapter bore at approximate
center of bore.
(12) Zero dial indicator, rotate crankshaft 360 de-
grees, and observe runout of adapter bore. Runout must
not exceed 0.010 inch (0.25 mm) at any point through 360
degrees of rotation.
NOTE: Crankshaft end play must be held to zero to
obtain an accurate runout reading. Move and hold the
crankshaft forward or rearward using a pry bar to elim-
inate end play.
(13) If adapter runout is above specified limits, cor-
rect adapter misalignment as outlined in following
steps.
(14) If adapter bore runout is within limits but out of
tolerance at face, shim clutch housing as required to
obtain runout of 0.010 inch (0.25 mm) or less. Shim
housing as outlined under Alignment Check—Without
Transmission Adapter.
(15) If adapter face runout is within limits but out of
tolerance at bore, proceed as follows:
(a) Loosen adapter-to-clutch housing bolts one
or two turns.
(b) Move adapter up, down, or side-to-side as
required to obtain runout of 0.010 inch (0.25 mm) or less.
Tap adapter with hammer to reposition it.
(c) When runout is corrected, tighten adapter
bolts to 35 foot-pounds (47 N*m) torque.
(d) Recheck runout and adjust adapter position
again if necessary.
(16) If adapter face or bore runout cannot be brought
within tolerance, replace adapter and clutch housing.
(17) If adapter and housing are replaced, install dial
indicator and check runout of replacement parts.
(18) After checking and correcting adapter align-
ment, remove dial indicator and remove clutch housing
with adapter attached. Do not remove adapter or dis-
turb adapter position if runout was corrected.
CAUTION: If the clutch housing was shimmed, mark
the location of the shims for assembly reference before
removing the housing.
(19) Remove 1/2-20 bolt and nut from flywheel and
install flywheel bolt removed previously. Tighten bolt to
105 foot-pounds (142 N*m) torque.
(20) Install driven plate and clutch cover. Tighten
clutch cover bolts to 40 foot-pounds (54 N*m) torque.
(21) Install clutch housing and adapter assembly and
clutch housing alignment shims as necessary.
(22) Tighten clutch housing bolts to specified torque.
Refer to Specifications.
(23) Install transmission as outlined in Chapter 2B.
CLUTCH COVER RELEASE LEVER ADJUSTMENT
NOTE: Always check and correct the release lever
height adjustment, if necessary, before installing an
original or replacement clutch cover.
(1) Install Gauge Plate Tool J-1048, on flywheel in
position normally occupied by driven plate (fig. 2A-7).
% 2fl-7 HtouaHq tap Plate J-1048