Pressure Plate and Clutch Disc Removal
Pressure Plate and Clutch Disc Removal
1. Check the diaphragm spring fingers for height using the special tool and feeler gauge. If the height is more than the service limit, replace the pressure plate and clutch disc as a set.
Standard (New) 0.6 mm (0.02 in) max
Service Limit 0.8 mm (0.03 in) max
2. Install the special tools.
3. Turn the center screw (A) clockwise by hand to apply pressure on the top diaphram spring. Continue turning the center screw until it stops.
4. Loosent the pressure plate mounting bolts (A) in the pattern shown in several steps, then remove the bolts.
5. Turn the center screw on the pressure plate compressor counterclockwise by hand to release the pressure, then install two pressure plate mounting bolts, hand-tight, to hold the pressure plate (B). Remove the special tools and the pressure plate.
6. Inspect the fingers of the diaphragm spring (A) for wear at the release bearing contact area.
7. Inspect the pressure plate (A) surface for wear, cracks, and burning.
8. Inspect for warpage using a straight edge (A) and feeler gauge (B). Measure across the pressure plate (C). If the warpage is more than the service limit, replace the pressure plate and clutch disc as a set.
Standard (New) 0.03 mm (0.001 in) max
Service Limit 0.15 mm (0.006 in)
9. Remove the clutch disc and special tools.
10. Inspect the lining of the clutch disc for signs of slipping or oil. If the clutch disc is burned black or oil soaked, replace it and a pressure plate as a set.
11. Measure the clutch disc thickness. If the thickness is less than the service limit, replace the clutch disc and pressure plate as a set.
Standard (New) 8.9 - 9.5 mm (0.350 - 0.374 in)
Service Limit 7.2 mm (0.283 in)
12. Measure the rivet depth from the clutch disc lining surface (A) to the rivets (B) on both sides. If the rivet depth is less than the service limit, replace the clutch disc and the pressure plate as a set.
Standard (New) 1.0 mm (0.039 in)
Service Limit 0.2 mm (0.008 in)