TIAGO

DRIVETRAIN-TA65 Star

4.5. MAINTENANCE, ADJUSTMENT AND

TESTS

4.5. A. INSPECTION OF COMPONENTS

i. Check clutch disc hub splines for damage and

wear.

ii. Check torsion damper mechanism springs for

distortion, damage etc. For this purpose, hold

drive shaft in vice. Insert clutch disc and slide it

as far back as possible. Rotate disc by hand.

Rattling noise and excessive play indicates

damaged torsional damping mechanism and

such disc must be replaced.

iii. Check disc facing for wear, cracks, contact

pattern, burning marks and oil contamination.

Facings with any of the above defects or worn

out beyond permissible limits must be replaced.

1. CLUTCH SLIPPAGE TEST

Clutch slippage can be confirmed by any of the

following two methods:

i. Drive the car in 1st or 2nd gear at maximum

speed corresponding to that gear. Keeping the

accelerator pedal pressed with your right foot,

apply brake gradually with your left foot If the

engine stalls, it means that clutch does not slip.

ii. Drive loaded car in 3rd gear on level ground

and let the speed drop down to approximately

15 kmph. Now press the accelerator pedal fully.

With slipping clutch, the car speed will not pick

up and also clutch burning smell will be noticed.

If this does not occur and the car picks up

speed, it indicates that clutch does not slip.

2. CLUTCH

ENGAGEMENT

AND

DISENGAGEMENT TEST

During the clutch slippage test, when the car is in

motion, depress clutch pedal fully without changing

the accelerator pedal position. If the engine speed

increases

immediately,

perfect

clutch

disengagement is indicated. Further, release the

clutch pedal suddenly. If the car moves forward

with a little jerk, perfect clutch engagement is

indicated.