Honda Civic. Manual — part 287

O-ring (C) from the piston.

Fig. 440: Identifying Clutch Piston, Outer O-Ring And Inner O-Ring
Courtesy of AMERICAN HONDA MOTOR CO., INC.

CLUTCH INSPECTION

1. Inspect the 4th and 5th clutch pistons and the clutch piston check valves (A).

Fig. 441: Identifying Clutch Piston Check Valves
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. If the clutch piston check valve is loose or damaged, replace the clutch piston.
3. Check the spring retainer for wear and damage.
4. Check the oil seal (A) on the spring retainer of the 1st, 2nd, and 3rd clutches

for wear, damage, and peeling.

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

Fig. 442: Identifying Oil Seal
Courtesy of AMERICAN HONDA MOTOR CO., INC.

5. If the oil seal is worn, damaged, or peeling, replace the spring retainer.
6. Inspect the clutch discs, the clutch plates, and the clutch end-plate for wear,

damage, and discoloration.

Clutch Discs Standard Thickness:

1st Clutch: 1.94 mm (0.076 in.)

2nd Clutch: 1.96 mm (0.077 in.)

3rd Clutch: 1.94 mm (0.076 in.)

4th Clutch: 1.96 mm (0.077 in.)

5th Clutch: 1.94 mm (0.076 in.)

Clutch Plates Standard Thickness:

1st Clutch (wave-plates): 1.6 mm (0.063 in.)

2nd Clutch (flat-plates): 2.0 mm (0.079 in.)

3rd Clutch (wave-plates): 1.6 mm (0.063 in.)

4th Clutch (flat-plates): 1.6 mm (0.063 in.)

5th Clutch (wave-plates): 1.6 mm (0.063 in.)

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

7. If the clutch discs are worn or damaged, replace them as a set. If the clutch

discs are replaced, inspect the clearance between the clutch end-plate and the
top disc.

8. If any plate is worn, damaged, or discolored, replace the damaged plate with a

new plate, and inspect the other wave-plates for a phase difference. If the
clutch plate is replaced, inspect the clearance between the clutch end-plate and
the top disc.

9. If the clutch end-plate is worn, damaged, or discolored, inspect the clearance

between the clutch end-plate and the top disc, then replace the clutch end-plate.

CLUTCH WAVE-PLATE PHASE DIFFERENCE INSPECTION

1. Place the clutch wave-plate (A) on a surface plate, and set a dial indicator (B)

on the wave-plate.

Fig. 443: Checking Clutch Wave-Plate Surface
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Find the bottom (C) of a phase difference of the wave-plate, zero the dial

indicator and make a reference mark on the bottom of the wave-plate.

3. Rotate the 1st clutch wave-plate about 56-degrees or 67-degrees apart from the

bottom while holding the wave-plate by its circumference, and rotate the 3rd
and 5th clutch wave-plate about 60-degrees apart from the bottom while
holding the wave-plate by its circumference. The dial indicator should be at the
top (D) of a phase difference. Do not rotate the wave-plate while holding its

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)

surface, always rotate it by holding its circumference.

4. Read the dial indicator. The dial indicator reads the phase difference (E) of the

wave-plate between the bottom and top.

Standard: 0.07-0.20 mm (0.003-0.008 in.)

5. Rotate the 1st clutch wave-plate about 67-degrees or 56-degrees from the top,

and rotate the 3rd and 5th clutch wave-plate about 60-degrees. The dial
indicator should be at the bottom of a phase difference (F and G), and zero the
dial indicator.

6. Measure the phase difference at the other two tops (H and I) of the wave-plate

by following steps 3 thru 5.

7. If the two values of the three measurements are within the standard, the wave-

plate is OK. If the two values of the three measurements are out of the
standard, replace the wave-plate.

CLUTCH CLEARANCE INSPECTION

Special Tools Required

Clutch compressor attachment 07ZAE-PRP0100

1. Inspect the clutch piston, discs, plates, and the end-plate for wear and damage

(see CLUTCH INSPECTION ), and inspect the clutch wave-plate phase
difference (see CLUTCH WAVE-PLATE PHASE DIFFERENCE
INSPECTION ), if necessary.

2. Install the clutch pistons in the clutch drums. Do not install the O-rings during

inspection.

2008 Honda Civic LX

2006-08 TRANSMISSION Automatic Transmission - Civic (Except Hybrid)