Deck 121: Clutches

Question 1

Technician A says that too much clutch pedal freeplay can cause the clutch to slip during acceleration. Technician B says that too little clutch pedal freeplay can cause the clutch to slip. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 1

Technician B only

Question 2

The engine speed increases when the driver depresses the accelerator pedal and releases the clutch pedal, but the vehicle does not move. Technician A says the clutch may be defective. Technician B says the dual-mass flywheel may be defective. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 2

Both technicians A and B

Question 3

A growling noise is heard only when the driver exerts force on the clutch pedal. No noise is heard when the clutch pedal is up. Technician A says the pilot bearing is defective. Technician B says the input shaft bearing is defective. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Answer 3

Neither technician A nor B

Question 4

Which part does NOT rotate when the engine is running and the clutch is depressed?

A)Clutch disc
B)Pilot bearing
C)Flywheel
D)Pressure plate

Question 5

The clutch pedal freeplay is less than specifications. Technician A says that the clutch may slip during hard acceleration. Technician B says that the clutch will "grab" when the clutch pedal is close to the floor when the clutch is engaged. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 6

What part is often NOT used on a front-wheel drive vehicle with a manual transaxle?

A)Pilot bearing
B)Clutch fork
C)Release bearing
D)Flywheel

Question 7

Most hydraulic clutch systems use what hydraulic fluid?

A)ATF
B)Mineral oil
C)DOT 3
D)SAE 80W-90

Question 8

A clutch is chattering when engaged. Technician A says that too much clutch freeplay is the cause.Technician B says that oil or grease may be on the friction disc. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 9

A manual transmission is difficult to shift or get into gear, especially reverse. Technician A says that the clutch may not be fully releasing. Technician B says that too much clutch pedal freeplay could be the cause. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 10

Two technicians are discussing bleeding a hydraulic clutch. Technician A says to open the bleeder and allow the fluid to gravity bleed. Technician B says to have an assistant slowly depress the clutch pedal as the bleeder valve is opened at the slave cylinder to bleed the air out of the system. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 11

The pressure plate assembly may also be called the ________.

A)Release bearing
B)Clutch cover
C)Release assembly
D)Driven plate

Question 12

Technician A says the flywheel and pressure plate assembly both rotate at engine crankshaft speed when the engine is running. Technician B says when the engine is running, and the transmission is in neutral, the transmission input shaft may be either rotating or at rest, depending on the clutch pedal position. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 13

When the clutch engages, spring force clamps the friction disc between the flywheel and the ________.

A)Transmission input shaft
B)Release bearing
C)Ring gear
D)Pressure plate

Question 14

Technician A says most engine flywheels are lightweight to avoid causing inertia. Technician B says most engine flywheels are made of hardened forged steel to absorb the heat of clutch operation. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 15

Pressure plate assemblies may include all of the following EXCEPT ________.

A)Coil springs and weighted release levers
B)Release fork, return springs, and pivot
C)Diaphragm spring and pivot rings
D)Coil springs, release levers, and rollers

Question 16

Most modern friction discs have cushion springs to ________.

A)Move dust away from the clutch engagement surfaces
B)Helps to smooth engagement of the clutch
C)Increase centrifugal effect
D)Allow movement between the hub and outer disc assembly

Question 17

Modern clutch friction material is commonly made from ________.

A)Silicone-based compounds
B)Cotton, paper, wire, resin
C)Asbestos and ceramic materials
D)Nodular cast iron

Question 18

Technician A says a short input shaft needs a pilot bearing for support. Technician B says pilot bushings are usually pressed into the center of the crankshaft flange. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 19

Technician A says the flywheel is attached to the engine crankshaft and rotates at engine speed. Technician B says the pressure plate also rotates at engine speed. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 20

What happens when a clutch pedal is depressed?

A)The release bearing is pushing against the release levers
B)The pressure plate springs are compressed
C)Both A and B
D)Neither A nor B

Question 21

In a hydraulic clutch, the slave cylinder ________.

A)Is connected to the clutch pedal
B)Is pushed by fluid pressure
C)Both A and B
D)Neither A nor B

Question 22

The major bearing(s) used with a clutch assembly is (are) the ________.

A)Release bearing that is mounted at the front of the transmission
B)Pilot bearing that supports the end of the transmission input shaft
C)Both A and B
D)Neither A nor B

Question 23

Technician A says all cable-operated clutch linkages require manual adjustment as part of routine service. Technician B says some cable-operated clutch linkages have a self-adjusting mechanism. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 24

Which type of fluid is typically used in a hydraulic clutch system?

A)Automatic transmission fluid
B)Brake fluid
C)Power steering fluid
D)Engine oil

Question 25

Where is the hydraulic clutch master cylinder located?

A)Engine compartment
B)It is an integral part of the brake master cylinder
C)Outside of the transmission case
D)In the passenger compartment floorboard behind the clutch pedal

Question 26

Technician A says that with self-adjusting clutch systems, the release bearing constantly rotates. Technician B says the ball bearing portion of the release bearing should be lubricated with high temperature grease during routine maintenance. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 27

When the driver depresses the clutch pedal, the pressure plate moves ________.

A)Toward the flywheel and clutch disc
B)The pressure plate does not move
C)Away from the flywheel and clutch disc

Question 28

Technician A says a fully engaged clutch friction disc must slip slightly to absorb engine vibrations.Technician B says the clutch friction disc is designed to slip slightly during engagement and disengagement to provide smooth operation. Which technician is correct?

A)Technician A only
B)Technician B only
C)Both technicians A and B
D)Neither technician A nor B

Question 29

Before removing the transmission make sure the battery is charged and connected in order to retain any clutch related DTCs.

Question 30

A grabbing clutch can be caused by a dry clutch disc.