221 

 

No. 163 Clutch with abnormal sound   

Malfunction Causes 

Solution 

1. Fixed screws of clutch operation mechanism 
loosening or damaged;   

Check fixed screws of clutch operation mechanism are 
loosening or damaged; fasten or replace it if any;   

2. Clutch release bearing worn, damaged;   

Check clutch release bearing is worn, damaged; 
replace it if any;   

3. Torsion spring of clutch plate loosening or 
broken;  

Check torsion spring of clutch plate is loosening or 
broken; replace it if any; 

4. Spline hub of clutch plate worn, loosening;   

4. Check spline hub of clutch plate is worn, loosening; 
replace it if any; 

Abnormal sound 
when stepping on 
clutch pedal   

5. Screws of clutch housing loosening;   

5. Check fixed screws of clutch housing are loosening; 
fasten it if any;   

 

 
 

 

 

222 

 

Clutch with abnormal 

sound 

Fasten or replace 

Fixed screws of clutch operation mechanism loosening or damaged 

Clutch release bearing worn, damaged 

Replace 

Replace 

Torsion spring of clutch plate loosening or broken 

Spline hub of clutch plate worn, loosening 

Replace 

Screws of clutch housing 
loosening 

Fasten screws 

Abnormal 

Normal 

Normal 

Normal 

Normal 

Abnormal 

Abnormal 

Abnormal 

Abnormal 

 
 

 

 

223 

 

No. 164 Shock absorber with abnormal sound   

Malfunction Causes 

Solution 

1. Fixed bolts loosening or damaged;   

Check fixed bolts are loosening or damaged; fasten or 
replace if any;   

2. Upper and lower rubber covers damaged;   

Check upper and lower rubber covers are damaged; 
replace if any;   

3. Buffer block damaged;   

Check buffer block is damaged; replace if any; 

4. Oil leaking; 

Check it is oil leaking; replace it if any;   

5. Spring too soft or broken;   

Check spring is too soft or broken; replace it if any; 

Vehicle bumping 
with abnormal 
sound  

6. Internally worn, loosening;   

Check it is oil leaking; replace it if any; 

 

 
 

 

 

224 

 

Replace 

Shock absorber with 
abnormal sound 

Fasten or 
replace 

Fixed bolts loosening or damaged 

Upper and lower rubber covers damaged 

Replace 

Buffer block aged, damaged 

Oil leaking 

Replace 

Spring too soft or broken 

Replace 

Internally worn, loosening, core axle warped, not straight, friction face warped, uneven 

Replace 

Normal 

Abnormal 

Damaged 

Damaged 

Oil leaking 

Abnormal 

Abnormal 

Normal 

Normal 

Normal 

Normal 

Normal