ACURA NSX 1991 Service Repair Manual

9. Remove the special tools.

Do not set here.
Set here.
8. Install the circlip.
CAUTION: If either end of the compressor attach-
ment is set over an area of the spring retainer which is unsupported by the retainer spring, the re-
tainer may be damaged.

CLUTCH SPRING
COMPRESSOR
BOLT ASSEMBLY

07GAE–PG40200
CLUTCH SPRING
COMPRESSOR
ATTACHMENT

07HAE–PL501007. Compress the clutch return spring.

CLUTCH SPRING
COMPRESSOR

ATTACHMENT

07LAE–PX40100

6. Install the special tools as shown.

Reassembly (cont'd)

ClutchProCarManuals.com

(cont'd)
CLUTCH DISC
CLUTCH END PLATE
11. Soak the clutch discs thoroughly in ATF for a minimum

of 30 minutes.

12. Starting with a clutch plate, alternately install the

clutch plates and discs. Install the clutch end plate

with flat side toward the disc.

NOTE: Before installing the plates and discs, make

sure the inside of the clutch drum is free of dirt or other

foreign matter.
SNAP RING
Install in this

direction.
SCREWDRIVER
13. Install the snap ring
10. Install the disc spring.

DISC SPRING
NOTE:

For 1st-hold and 2nd clutches

Install the disc spring in the direction shown.ProCarManuals.com

Clutch

Reassembly (cont'd)

14. Measure the clearance between the clutch end plate

and top disc with a dial indicator. Zero the dial indicator

with the clutch end plate lowered and lift it up to the

snap ring. The distance that the clutch end plate

moves is the clearance between the clutch end plate

and top disc.

NOTE: Measure at three locations.

End Plate-to-Top Disc Clearance:
15. If the clearance is not within the service limits, select a

new clutch end plate from the following table.

NOTE: If the thickest clutch end plate is installed but

the clearance is still over the standard, replace the

clutch discs and clutch plates.

2ND, 3RD, 4TH and 1ST HOLD CLUTCH

END PLATE
TOP DISC

1ST CLUTCH

PLATE NUMBER

Thickness

END PLATEProCarManuals.com

1st-hold Clutch Bearing

Replacement

1. Remove the 1st-hold clutch bearing using a bearing
puller.

BEARING PULLER
1ST-HOLD CLUTCH BEARING

1ST-HOLD CLUTCH
2. Install a new bearing using the special tools as shown.
NOTE: Drive in the bearing until it fully bottoms.

DRIVER

07749–0010000

ATTACHMENT,
72 x 75 mm
07746–0010600ProCarManuals.com

Torque Converter Housing Bearings
Mainshaft Bearing Replacement
1. Drive out the mainshaft bearing and oil seal using the special tools as shown. 3. Install the new oil seal flush with the housing using
the special tools as shown.

DRIVER
07749–0010000

ATTACHMENT,
72 x 75 mm

07746–0010600

ATTACHMENT,

07947–6340500
TORQUE CONVERTER HOUSING

2. Drive in the new mainshaft bearing until it bottoms in the housing, using the special tools as shown.

DRIVER
07749–0010000

ATTACHMENT,
62 x 68 mm
07746–0010500
DRIVER

07749–0010000ProCarManuals.com

OIL GUIDE PLATE

Replace.

0–0.05 mm

(0–0.002 in)
ATTACHMENT,

62 x 68 mm

07746–0010500

BEARING

OIL GUIDE PLATE
Replace.

0–0.05 mm

(0–0.002 in)
ATTACHMENT,

72 x 75 mm

07746–0010600

BEARING DRIVER

07749–0010000

2. Replace the oil guide plate.
3. Drive the new bearing into the housing using the spe-
cial tools as shown.
COUNTERSHAFT

NEEDLE BEARING
Replace with new
bearing if removed.

ADJUSTABLE
BEARING

PULLER.

25
–40 mm
07736–A01000A
Commercially Available
3/8 in. x 16 thread/in. slide
hammer.

1. Remove the countershaft bearing using the special
tool as shown.

Countershaft Bearing Replacement
Secondary Shaft Bearing

Replacement

1. Remove the secondary shaft bearing using the special tool as shown.

ADJUSTABLE BEARING

PULLER,

25–40 mm
07736–A01000A SECONDARY SHAFT
NEEDLE BEARING

Replace with new bearing
if removed.
2. Replace the oil guide plate.
3. Drive the new bearing into the housing using the spe- cial tools as shown.

DRIVER

07749–0010000

Commercially Available
3/8 in. x 16 thread/in. slide hammer.ProCarManuals.com

Transmission Housing Bearings

Replacement

2. Expand each snap ring with the snap ring pliers, insert

the new bearing part-way into it, then release the pli-

ers. Push the bearing down into the transmission until

the ring snaps in place around it.
1. To remove the mainshaft, countershaft and secondary

shaft bearings from the transmission housing, expand

each snap ring with the snap ring pliers, then push the

bearing out.

NOTE: Do not remove the snap rings unless it's

necessary to clean the grooves in the housing.

Install

RemoveProCarManuals.com

Reverse Idler Gear
Installation
1. Install the reverse idler gear.

REVERSE IDLER GEAR

2. Set the spring in the reverse idler shaft. Push the spring in with the steel ball then install the needle bearing.
NOTE: The steel ball is under spring pressure. Take

care not to let it pop out.
3. Install the reverse idler shaft holder into the transmis-
sion housing, then tighten the bolts.

6 x 1.0 mm
12N .
m (1.2kg-m, 9 Ib-ft)
REVERSE IDLER SHAFT HOLDER
REVERSE IDLER GEAR
REVERSE IDLER GEAR

REVERSE IDLER SHAFT

NEEDLE ROLLER BEARING

SPRING

STEEL BALLProCarManuals.com

Manual Valve Detent Spring


Parking Brake Stopper

Replacement/Adjustment

NOTE: Select the appropriate manual valve detent
spring when below parts are replaced. Manual Valve
Manual Valve Detent Spring
Manual Valve Lever of Control Shaft
1. Install the main valve body, including the oil pump gears, onto the torque converter housing and tight-
en to 12 N .
m (1.2 kg-m, 9 Ib-ft).
See page 14-147.

2. Install the control shaft.

3. Install the manual valve detent spring on the main
valve body and tighten to 14 N .
m (1.4 kg-m, 10

Ib-ft).

4. Set the manual valve to N position. 5. Measure the distance between the main valve body and manual valve as shown.
Inspection/Adjustment
1. Set the parking shift arm in the position.

2. Measure the distance between the face of the park- ing pawl shaft and face of the parking shift arm roller

pin as shown.

PARKING PAWL SHAFT

DISTANCE

PARKING PAWL

ROLLER PIN

PARKING

SHIFT ARM

PARKING BRAKE STOPPER

MANUAL VALVE

MAIN VALVE BODY

DISTANCE
3. If the measurement is out of tolerance, select and
install the appropriate parking brake stopper from
the table below.

PARKING BRAKE STOPPER

MANUAL VALVE

DETENT SPRING

CONTROL

N position

MANUAL VALVE

LEVER

5. If the measurement is out of tolerance, select the appropriate manual valve detent spring using table

below, then install it and recheck.

PARKING BRAKE STOPPER

MANUAL VALVE DETENT SPRING

4. After replacing the parking brake stopper, makesure the distance is within torelance.

LENGTH

SHAFTProCarManuals.com

Transmission

Reassembly

NOTE: Coat all parts with ATF.
1. Reassemble the valve bodies in the following numbered sequence.

CAUTION: To prevent stripping the threads, press down on the accumulator cover while installing the bolts.

TORQUE:
6 x 1.0 mm: all bolts except : 12 N
.
m (1.2 kg-m, 9 Ib-ft)
6x1.0 mm: : 14 N
.
m (1.4 kg-m, 10 Ib-ft)

7 Bolts
2 Bolts

5 Bolts
2 Bolts

4 Bolts

NOTE: Install the oil pump driven gear with

its chamfered side facing down.
NOTE: Make sure the pump drive gear

rotates smoothly in the normal operating

direction and the pump shaft moves

smoothly in the axial and normal operating

directions.

CAUTION: If the pump gear and pump
shaft do not move freely, loosen the valve
body bolts, realign the shaft, and then
retighten to the specified torque. Failure to
align the pump shaft correctly will result in seized pump gear or pump shaft.

DRIVE

GEAR

DRIVEN

(cont'd)

8x
1.25
mm

18 N .
m

(1.8 kg-m.
6 x 1.0 mm

(1.4 kg-m.

2 Bolts

13 Ib-ft)
GEAR
Chamfered side faces

separator plate.
DRIVEN

GEAR

DRIVEN GEAR

SHAFT
DRIVE GEARProCarManuals.com