Exam 38: Manual Transmissions and Transaxles

A shift rail and fork is used to control the movement of a synchronizer.

Technician A says self-shifting manual transmissions use planetary gearsets and torque converters like conventional automatic transmissions. Technician B says these transmissions are manual transmissions that shift gears using a computer-controlled actuator connected to the shift forks and a clutch actuator. Who is correct?

Define final drive.

Transmission gearing is located within an aluminum or iron casting called the transmission ____________________ assembly.

What is the purpose of an upshift lamp?

Describe shift blocking.

In a five-speed manual transmission/transaxle, an idler gear is used for _____ gear(s).

Technician A says spur-cut gears have teeth cut at an angle. Technician B says spur-cut gears run without creating gear whine. Who is correct?

Identify three advantages of an overdrive gear ratio being used in a vehicle.

Which of the following gear ratios shows an overdrive condition?

What is gear pitch?

Gears can _____.

To reduce gear whine, manufacturers use _____ gears.

Blocking rings are being discussed. Technician A says that during a gear shift, the blocking ring is pushed into the speed gear cone by the shifter plates or keys. Technician B says the blocking ring eliminates friction between the cone-shaped surface on the speed gear and the synchronizer assembly. Who is correct?

When an idler gear is placed between the driving and driven gear, the driven gear _____.

A 2.85:1 ratio represents a gear ____________________.

Technician A says when a small gear drives a larger gear, output speed is decreased. Technician B says when a small gear drives a larger gear, output torque is decreased. Who is correct?

A gear ratio of 4:1 is lower than a gear ratio of 2:1.

Which type of gear develops the problem of gear whine at higher speeds?

Explain the role of shift rails and shift forks in the operation of transmissions and transaxles.