Clutch Drag Or Inadequate Release - Jeep J-10 Series 1982 Technical & Service Manual

(5) If engine stalls within 5 seconds, clutch is not
defective. If engine continues to run, proceed to next
step.
(6) Raise vehicle on hoist. Check clutch linkage for
binding, worn, broken, or bent components. Lubricate or
replace as necessary. If all components inspected are in
good operating condition, proceed to next step.
(7) If one or more problems were discovered and
corrected during inspection in previous step, repeat
steps (1) through (4). If clutch slippage is corrected, stop
repair. If slippage persists, proceed to next step.
(8) Remove transmission and clutch components.
Refer to Clutch Removal.
NOTE: Whenever the transniission is removed, also
remove the pilot bushing lubricating wick, soak the wick
in engine oil, and reinstall the wick before assembly.
(9) Inspect driven plate. If 1/16 inch (2 mm) or less
friction material remains above rivet heads, or plate is
severely glazed or contaminated with oil or grease, re
place driven plate.
NOTE: If the driven plate is contaminated, determine
the cause and make correction before proceeding.
(10) Inspect clutch cover. If cover is heat-checked,
has broken or collapsed springs, or exhibits signs of
overheating (e.g., has blue coloration), replace cover. If
cover does not exhibit any of these conditions, do not
replace it.
(a) Clean oil and dirt from cover using mineral
spirits and allow cover to air dry.
(b) Sand pressure plate surface lightly using
fine emery cloth.
(c) Lubricate cover release lever pivots and
check and adjust release lever height as necessary.
CAUTION: Apply lubricant to the pivots sparingly.
Excessive lubrication could result in grease con
tamination of the driven plate and pressure plate
surfaces.
(11) Check throwout bearing mounting surface of
transmission front bearing cap for galling, deep scores,
or roughness. Install throwout bearing on bearing cap
and check for smooth fore/aft movement. Replace bear
ing or bearing cap as necessary if bind occurs. Fill
throwout bearing groove with chassis grease and apply
thin coat of grease to bearing mounting surface of front
bearing cap.
CAUTION: The throwout bearing has retaining
springs which position the bearing on the throivout le
ver. Check these springs for distortion, loss of tension,
or for being bent or broken. Replace the bearing if these
springs are damaged.
NOTE: Do not replace the throwout bearing unless it is
actually defective or damaged. Refer to Clutch Area
Noises.
CLUTCH 2A-5
(12) Apply thin film of chassis grease to transmis
sion clutch shaft splines. Do not apply grease to shaft
pilot hub.
(13) Install pilot bushing and lubricating wick.
(14) Install clutch components and transmission. Re
fer to Clutch Installation.
(15) Lower vehicle.
Clutch Drag Or Inadequate Release
Clutch drag can be described as a condition in which
the clutch driven plate, and consequently the transmis
sion clutch shaft, does not come to a complete stop after
the clutch pedal is depressed (clutch disengaged). Clutch
drag can cause gear clash when shifting into reverse or
hard or difficult shifting. Check clutch operation as
follows.
NOTE: Occasionally, the clutch driven plate and clutch
shaft will require approximately 5 seconds to lose mo
mentum and come to a complete stop after initial clutch
disengagement. This is normal and should not be mis
taken for clutch drag.
(1) Start engine, depress clutch pedal fully, and
shift transmission into first gear.
(2) Shift transmission into neutral but do not re
lease clutch pedal.
(3) Wait 5 to 10 seconds and shift transmission into
reverse. If shift is smooth with no gear clash, clutch
operation is normal. If shifting into reverse produces
gear clash, proceed to next step.
(4) Raise vehicle on hoist. Check clutch linkage for
binding, worn, broken or bent components. Lubricate or
replace as necessary. If components are in good oper
ating condition, proceed to next step. If one or more
problems were discovered and repaired, lower vehicle
and repeat steps (1) through (3). If clutch now operates
correctly, stop repair. If clutch drag persists, proceed to
next step.
(5) Remove transmission and clutch components.
Refer to Clutch Removal.
NOTE: Whenever the transmission is removed, also
remove thepilot bushing lubricating wick, soak thewick
in engine oil, and reinstall the wick before assembly.
(6) Observe wear pattern on driven plate. If wear
pattern is uneven (e.g., two areas heavily worn on one
side, two only partially worn on opposite side), or has
opposing wear patterns on front and reverse side, the
driven plate is warped and should be replaced.
(7) Inspect clutch cover assembly. If clutch cover
assembly has worn, bent, or broken release levers or
lever pivots, is heavily scored, or warped, replace clutch
cover assembly. If cover assembly does not exhibit any
of these conditions, do not replace it.
(a) Clean oil and dirt from clutch cover with
solvent and allow cover to air dry.