Chapter 8 Clutch and driveline
EXCESS
NORMAL FINGER WEAR EXCESSIVE FINGER WEAR
EXCESSIVE WEAR
EXCESSIVE FINGER WEAR BROKEN OR BENT FINGERS
Slot of spring pin
3.12 Replace the pressure plate if the diaphragm spring fingers 4.4 Drive out the spring pins with a hammer and punch - the pin
exhibit these signs of wear slots must be at right angles to the shaft when reinstalled
5.1 Typical clutch cable details
1 Clutch pedal 7 Spacer
2 Bushing
8 Insulator
3 support
9 Pedal /ever
4
Pedal rod 10 Pad
5 Spring 11
Clutch cable
6 Adjusting wheel 12 stop bolt
12 Check the machined surfaces of the pressure plate and the dia-
phragmspringfingers(seeillustration). Iffhesurfaceisgroovedorother-
wise damaged, replace the pressure plate. Also check for obvious
damage, distortion, cracking, etc. Light glazing can be removed with me-
dium grit emery cloth. If a new pressure plate is indicated, new or factory-
rebuilt units are available.
Installation
13 Before installation, carefully wipe the flywheel and pressure plate ma-
chined surfaces cleanwith a rubbing-alcoholdampened rag. It’s important
that no oil or grease is on these surfaces or the lining of the clutch disc.
Handle these parts only with clean hands.
F4 PosifiomFthe clutch disc and pressure plate with the clutch held in
place with an alignment tool. Make sure it’s installed properly (most re-
placementclutch discs will be marked “flywheel side”orsomething similar
-if not marked, install the clutch with the damper springs or bushings to-
ward the transmission.
15 Tighten the pressure plate-to-flywheel bolts only finger tight, working
around the pressure plate.
16 Center the clutch disc by ensuring the alignment tool is through the
splined hub and into the pilot bearing in the crankshaft. Wiggle the tool up;
down or side-to-side, as needed, to bottom the tool in the pilot bearing.
Tighten the pressure plate-to-flywheel bolts a little at a time, working in a
criss-cross pattern to prevent distorting the cover. After all of the bolts are
snug, tighten them to the torque listed in this Chapter’s Sfjecifications. Be:
move the alignment tool.
17 Using high temperature grease, lubricate the inner groove of the re-
lease bearing (refer to Section 4). Also place grease on,,the fork fingers.
18 Install the clutch release bearing as described in Section 4.
19 Install the transmission, release cylinder and all components re-
moved previously, tightening all fasteners to the proper torque specifica-
tions.
4 Clutch release bearing - removal and installation
Refer to illustration 4.4
Removal
1 Disconnect the negatrve cable from the battery.
2 Remove the transmission (Chapter 7).
3 Detach the spring clip(s), then slide the release bearing off the trans-
mission input shaft (see illustration 2.1).
4 On cable-actuated models, drive out the two spring pins and slide the
clutchcontrol leveroutof the bellhousing and remove the releasefork(see
illustration).
5 On hydraulically actuated models, detach theforkfrom the ballstud by
pulling it strarght off.
6 t-tald the bearrng and turn the Inner portron. If the bearing doesn’t turn
smoothly or if its noisy replace it with a new one. Wipe the bearing wittYa
clean rag and inspectit for damage, wear and cracks. Don’t immerse the
bearing in solvent - it’s sealed for life and to do so would ruin it.
Installation
Cable-actuated models
7 Wipe the control lever shaft bushings in the bellhousmg clean, then
_._
apply a thin coat of mm&purpose grease to them. Slide the control lever/
shaft assembly into place along with the felt packings, return springs and
the clutch arm.
8 Engage the return spring in the clutch arm, install the spring pins with
the slots at right angles to the shaft (see illustration 4.4). Apply a few
drops of clean engine oil to the felt packings.
9 Slide the release bearing and carrier assembly into position and in-
stall the spring clips. Make sure they are prooerly engaged in the cfutch
arm and release bearing carriers.
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