After the bearing is in place, rotate it by hand and
make sure it rotates smoothly. It should turn without bind-
ing or roughness.
Clutch Fork Service
A bent or worn clutch fork can prevent the clutch
from releasing properly. Inspect the clutch fork for such
signs of damage. Look for wear at the throwout bearing
mount. On lever-type clutch forks, check the pivot-point
contact area. Inspect the spring clip that holds the clutch
fork to the pivot point. On shaft-type clutch forks, check
the pivot shaft for wear.
If inspection reveals a damaged clutch fork, the fork
must be removed (if it is not already) and replaced. The
lever-type clutch fork is removed when the clutch is
disassembled. The shaft-type clutch fork can be removed by
first removing the pivot, or clutch release, shaft. The shaft is
usually held by a clip, Figure 7-34A. Once the clip is
removed, the shaft will slide out of the housing and the fork
can be removed from the shaft, Figure 7-34B. With the fork
assembly apart, you can also check the pivot shaft for wear.
Clutch Housing Service
Clutch housings usually are not a source of problems.
It is important, however, that they be inspected for
damage. Clean the clutch housing interior and exterior.
Then check the housing for cracks and damage to mount-
ing surfaces. Any damage is grounds for replacement.
Also, check the clutch fork ball stud for wear. It should
be undamaged and tight. If the stud must be replaced, it can
usually be removed from the clutch housing with a large
Allen wrench or a differential-plug removal tool.
Clutch Installation
The following section presents the general procedures
for installing a clutch safely and properly. The exact proce-
dure for clutch installation varies according to the engine
and drive train layout. You should always refer to the man-
ufacturer’s service manual for specific procedures and
techniques to install a clutch safely and properly.
Front-Engine, Rear-Wheel Drive
The following procedure details the proper way to
install a clutch in a front-engine, rear-wheel drive vehicle:
150 Manual Drive Trains and Axles
Figure 7-32. A—Dry, worn throwout bearing—Riding clutch, improper clutch adjustment. B—Worn front bearing retainer hub—
Bent fork or fork mount.
A B
Press
ram
Driver
Bearing
Removing
collar
Installing
collar
Bearing
Driver
A B
Figure 7-33. Replacing a throwout bearing. A—The throwout
bearing can be removed from its collar by using a press. The
proper adapter must be used. In many cases, the bearing can
be removed and replaced by using a bench vise. B—This illus-
trates the bearing installation procedure. Be careful not to exert
any pressure on the rolling elements or outer race. (Toyota)