MANUAL TRANSAXLE AND CLUTCH DIAGNOSIS AND TESTING

• The vehicle should be road tested, if possible, to verify the customer concern. Some clutch conditions may be attributed to a misadjusted clutch pedal height, linkage, or shift mechanism. These should be inspected and corrected prior to attempting major disassembly procedures. Inspect the transaxle oil. (See MANUAL TRANSAXLE OIL REPLACEMENT [G15M-R, G25MX-R].)


Condition	Possible cause
Clutch slippage	• Insufficient free play of clutch pedal • Clutch pedal sticking • Clutch cover diaphragm spring damaged or weakened • Clutch cover damaged • Clutch disc facing excessively worn • Clutch disc facing surface hardened or oil coated • Flywheel glazed or damaged
Clutch chatter or shudder	• Loose or worn of engine mount • Oil on clutch disc facing • Clutch cover damaged or excessive runout • Clutch disc facing surface hardened or damaged • Flywheel surface glazed or damaged
Clutch drag	• Insufficient transaxle oil • Leakage of transaxle oil • Excessive free play of clutch pedal • Excessive runout or damaged of clutch disc • Clutch disc splines rusted or worn
Clutch pedal pulsation	• Clutch pedal pivot point not correctly lubricated • Excessive runout of flywheel
Clutch-related vibrations	• Engine component grounding against frame • Loose flywheel bolts • Excessive runout of flywheel • Imbalanced clutch cover
Hard shifting	• Insufficient transaxle oil • Excessive free play of clutch pedal • Gear shift fork damaged or worn • Clutch release hub and clutch release collar damaged or worn • Manual transaxle concern
Excessive noise	• Insufficient free play of clutch pedal • Clutch release hub and clutch release collar damaged • Poor lubrication of clutch release collar sleeve • Bearing worn or damaged • Worn pivot points of clutch release fork • Excessive end play of crankshaft

MANUAL TRANSAXLE AND CLUTCH DIAGNOSIS AND TESTING

Inspection and Verification

Symptom Chart