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Acura RL. Manual - part 333

Fig. 558: Identifying 1st/1st-Hold Clutch Piston And Clutch Drum
Courtesy of AMERICAN HONDA MOTOR CO., INC.

22. Remove the 1st-hold clutch piston (A) from the 1st clutch piston (B), and remove the O-rings from the

1st-hold clutch piston.

Fig. 559: Identifying 1st-Hold Clutch Piston And 1st Clutch Piston
Courtesy of AMERICAN HONDA MOTOR CO., INC.

23. Remove the clutch piston, and remove the O-rings from the 2nd, 3rd, 4th, and 5th clutch pistons.

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:18 PM

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Fig. 560: Identifying O-Rings
Courtesy of AMERICAN HONDA MOTOR CO., INC.

CLUTCH INSPECTION

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

Fig. 561: Identifying 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. If the spring retainer is worn or damaged, replace it.

5. Inspect the clutch discs, clutch plates, and clutch end-plate for wear, damage, and discoloration.

Clutch Discs

Standard Thickness: 1.94 mm (0.076 in.)

Clutch Flat-plates and Clutch Wave-plates Standard Thickness:

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

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1st Clutch: 1.6 mm (0.063 in.)

1st-hold Clutch: 1.8 mm (0.071 in.)

2nd Clutch: 1.8 mm (0.071 in.)

3rd Clutch: 2.0 mm (0.079 in.)

4th Clutch: 1.8 mm (0.071 in.)

5th Clutch: 1.6 mm (0.063 in.)

6. 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.

7. 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.

8. 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. 562: 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 clutch wave-plate of the 1st, 1st-hold, 2nd, 4th, and 5th clutches about 60-degrees apart from

the bottom while holding the wave-plate by its circumference, and rotate the 3rd clutch wave-plate about
72-degrees or 54-degrees apart from the bottom while holding the wave-plate by its circumference. The

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

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dial indicator should be at the top (D) of a phase difference. Do not rotate the wave-plate while holding its
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:

1st Clutch: 0.22-0.30 mm (0.0087-0.012 in.)

1st-hold, 2nd, 3rd, 4th, and 5th Clutches:

0.12-0.20 mm (0.0047-0.0079 in.)

5. Rotate the wave-plate of the 1st, 1st-hold, 2nd, 4th, and 5th clutches about 60-degrees, and the 3rd clutch

wave-plate about 54-degrees or 72 degrees. The dial indicator should be at the bottom of a phase
difference (F and G). 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

7. If two of the three measurements are within the standard, the wave-plate is OK. If two 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 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 1st-hold clutch piston in the 1st clutch piston, and install 1st/1st-hold clutch piston (A) in the

1st/1st-hold clutch drum (B). Do not install the O-rings on the clutch pistons during inspection.

Fig. 563: Identifying 1st/1st-Hold Clutch Piston And 1st/1st-Hold Clutch Drum

2007 Acura RL

2005-08 TRANSMISSION Automatic Transmission - RL

Friday, June 05, 2009 1:18:18 PM

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