ASE ASE Manual Drive Train and Axles

Question 1

A manual transmission grinds when shifting into 2nd gear but all other gear changes are smooth. What is the MOST likely cause?

Accepted Answer

Faulty 2nd gear synchronizer assembly

Answer

Worn main shaft bearing

Answer

Low transmission fluid level

Answer

Bent shift fork for 3rd/4th gear

Question 2

A technician notices a manual transmission is hard to shift into any gear when the engine is running but shifts freely with the engine off. What component is MOST likely at fault?

Accepted Answer

Clutch not fully releasing (dragging clutch)

Answer

Worn shift linkage

Answer

Worn synchronizer rings on all gears

Answer

Loose flywheel bolts

Question 3

What is the function of the pilot bearing or bushing in a manual transmission system?

Accepted Answer

It supports the front of the transmission input shaft in the crankshaft

Answer

It supports the rear of the crankshaft

Answer

It preloads the input shaft bearing

Answer

It centers the clutch disc on the flywheel

Question 4

A rear-wheel-drive vehicle vibrates at highway speeds but the vibration disappears when the driver lightly applies the brakes. What is the MOST likely cause?

Accepted Answer

Worn universal joint in the driveshaft

Answer

Out-of-balance tires

Answer

Loose transmission crossmember mount

Answer

Faulty wheel bearing

Question 5

What is the purpose of the clutch release bearing (throw-out bearing)?

Accepted Answer

It allows the non-rotating clutch fork to apply force to the spinning pressure plate fingers

Answer

It transfers torque from the flywheel to the clutch disc

Answer

It pre-loads the clutch disc against the flywheel

Answer

It supports the transmission input shaft

Question 6

During a clutch replacement, a technician finds the flywheel surface has heat cracks and hard spots. What is the recommended repair?

Accepted Answer

Resurface the flywheel if within specifications or replace it

Answer

Install the new clutch disc on the cracked flywheel — surface irregularities will wear in

Answer

Apply a thin bead of RTV to smooth the surface before assembly

Answer

Reverse the flywheel so the cracked side faces away from the clutch