Nissan Altima L32. Instruction — part 190

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< REMOVAL AND INSTALLATION >

CLUTCH DISC AND CLUTCH COVER

CLUTCH DISC AND CLUTCH COVER

Exploded View

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QR25DE Models

VQ35DE Models

Removal and Installation

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CAUTION:

• If transaxle assembly is removed from the vehicle, always replace CSC (Concentric Slave Cylinder).

Return CSC insert to original position to remove transaxle assembly. Dust on clutch disc sliding

parts may damage CSC seal and may cause clutch fluid leakage.

• Be careful not to apply any grease to the clutch disc facing, pressure plate surface and flywheel sur-

face.

PCIB1394E

1.

Flywheel

2.

Clutch disc

3.

Clutch cover

ALDIA0016ZZ

1.

Flywheel

2.

Clutch disc *1, *2

3.

Clutch cover

A.

First step

B.

Final Step

: Apply lithium-based grease including molybdenum disulphide

*1. Do not clean in solvent.

*2. When installing, be careful that grease applied to input shaft does not adhere to

clutch disc.

CLUTCH DISC AND CLUTCH COVER

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< REMOVAL AND INSTALLATION >

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• If flywheel is removed, align dowel pin with the smallest hole of flywheel (for VQ35DE engine mod-

els). Refer to

EM-206, "Disassembly and Assembly"

.

• Replace clutch disc and clutch cover as a set (for VQ35DE engine models).

REMOVAL

1. Remove transaxle assembly from the vehicle. Refer to

TM-26, "Removal and Installation"

.

2. Loosen clutch cover bolts evenly. Then remove clutch cover and clutch disc.

INSTALLATION

1. Clean clutch disc and input shaft splines to remove grease and dust caused by abrasion.
2. Apply recommended grease to clutch disc and input shaft splines.

CAUTION:

Be sure to apply grease to the points specified. Otherwise, noise, poor disengagement, or damage

to the clutch may result. Excessive grease may cause slip or shudder. If it adheres to CSC seal, it

will cause clutch fluid leakage. Wipe off excess grease.

3. Install clutch disc using Tool.

4. Install clutch cover. Pre-tighten clutch cover bolts.
5. Tighten clutch cover bolts evenly in two steps in the order

shown. Refer to

CL-14, "Exploded View"

.

6. Install transaxle assembly. Refer to

TM-26, "Removal and Instal-

lation"

.

Inspection

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CLUTCH DISC

• Measure clutch disc runout and backlash. If either measurement

exceeds the specification, replace clutch disc (for QR25DE engine

models) or clutch disc and clutch cover as a set (for VQ35DE

engine models).

• Check clutch disc for burns, discoloration or oil or grease leakage. Replace if necessary.

• Determine the clutch facing wear limit (depth to the rivet head). If

measurement exceeds specifications, replace clutch disc (for

QR25DE engine models) or clutch disc and clutch cover as a set

(for VQ35DE engine models).

CLUTCH COVER

Tool number

: KV30101000 ( — )

SCIA6797E

Runout and backlash : Refer to

CL-17, "Clutch Disc"

.

SCL221

Clutch facing wear : Refer to

CL-17, "Clutch Disc"

.

SCL229

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< REMOVAL AND INSTALLATION >

CLUTCH DISC AND CLUTCH COVER

• Check clutch cover installed on vehicle for unevenness of dia-

phragm spring toe height. If unevenness exceeds specifications,

adjust the height using Tool (A).

• Check clutch cover thrust ring for wear or breakage. If wear or

breakage is found, replace clutch cover (for QR25DE engine mod-

els) or clutch disc and clutch cover as a set (for VQ35DE engine

models).

NOTE:

• Worn thrust ring will generate a beating noise when tapped at the rivet using suitable tool.

• Broken thrust ring will make a clinking sound when cover is shaken up and down.

• If a trace of burn or discoloration is found on clutch cover pressure plate to clutch disc contact surface, repair

the surface with sandpaper. If surface is damaged or distorted, replace clutch cover (for QR25DE engine

models) or clutch disc and clutch cover as a set (for VQ35DE engine models).

Uneven limit of diaphragm
spring toe height

: Refer to

CL-17, "Clutch

Cover"

.

Tool number

: ST20050240 ( — )

PCIB1502E

SERVICE DATA AND SPECIFICATIONS (SDS)

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< SERVICE DATA AND SPECIFICATIONS (SDS)

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SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Clutch Control System

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Clutch Pedal

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Unit: mm (in)

Clutch Disc

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Unit: mm (in)

Clutch Cover

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Unit: mm (in)

Type of clutch control

Hydraulic

Clearance between clutch pedal and ASCD switch threaded end
while clutch pedal is fully released.

0.74 - 1.96 (0.0291 - 0.0772)

Clearance between clutch pedal and clutch interlock switch
threaded end while clutch pedal is fully depressed.

0.74 - 1.96 (0.0291 - 0.0772)

Engine model

QR25DE

VQ35DE

Model

240

Facing size (Outer dia.

× Inner dia. × Thickness)

240

× 160 × 8.0 (9.45 × 6.30 × 0.31)

240

× 160 × 8.4 (9.45 × 6.30 × 0.33)

Thickness of disc assembly with load

7.15 - 7.65 (0.2815 - 0.3012) with 6,370

N (649.7 kg, 1,432.0 lb)

7.6 - 8.0 (0.299 - 0.31) with 9,900 N

(1,009.8 kg, 2,225.5 lb)

Runout limit/diameter of the area to be measured

0.7 (0.028) or less / 230 (9.06) dia.

1.0 (0.039) or less / 230 (9.06) dia.

Maximum spline backlash (at outer edge disc)

1.0 (0.039)

Wear limit (depth to the rivet head)

0.3 (0.012)

Engine model

QR25DE

VQ35DE

Set-load

6,370 N (649.7 kg, 1432.0 lb)

9,900 N (1,009.8 kg, 2,225.5 lb)

Diaphragm spring lever height

28.6 - 30.6 (1.126 - 1.205)

41.6 - 43.8 (1.638 - 1.724)

Uneven limit of diaphragm spring toe height

0.7 (0.028) or less

0.8 (0.031) or less