Clutch: Service and Repair

PRESSURE PLATE
Removal/Inspection





1. Check the diaphragm spring fingers for height using the special tools and a feeler gauge.
If the height is more than the service limit, replace the pressure plate.





2. Install the special tools.
3. To prevent warping, unscrew the pressure plate mounting bolts in a crisscross pattern in several steps, then remove the pressure plate.
4. Inspect the pressure plate surface for wear, cracks, and burning.





5. Inspect the fingers of the diaphragm spring for wear at the release bearing contact area.





6. Inspect for warpage using a straight edge and feeler gauge.

NOTE: Measure across the pressure plate at three points.

If the warpage is more than the service limit, replace the pressure plate.

CLUTCH DISC
Removal/Inspection





1. Remove the clutch disc and special tools.
2. Inspect the lining of the clutch disc for signs of slipping or oil. If it is burned black or oil soaked, replace it.





3. Measure the clutch disc thickness. If the thickness is less than the service limit, replace the clutch disc.





4. Measure the depth from the lining surface to the rivets, on both sides.
If the rivet depth is less than the service limit, replace the clutch disc.

CLUTCH DISC, PRESSURE PLATE INSTALLATION





1. Install the ring gear holder.
2. Apply grease to the spline of the clutch disc, then install the clutch disc using the special tools as shown.

NOTE: Use only Super High Temp Urea Grease (P/N 08798-9002).





3. Install the pressure plate.





4. Torque the mounting bolts in a crisscross pattern as shown. Tighten the bolts in several steps to prevent warping the diaphragm spring.
5. Remove the special tools.
6. Recheck the diaphragm spring fingers for height.