Deck 16: Gear Train Rebuilding

Question 1

Preload refers to the amount of:

A) clearance between the bearings and the bearing races.
B) force placed on a bearing before any load is on the bearing.
C) impact damage as the bearings hammer back and forth against the bearing races.
D) load that a bearing can take without difficulty to spin.

Answer 1

B

Question 2

A bearing will suffer from impact damage when there is:

A) too much free play.
B) excessive load on the bearing.
C) too much preload.
D) over-tightening of a bearing.

Answer 2

A

Question 3

Tech A says that if the end play is insufficient, it may cause premature wear on the thrust bearings. Tech B says that transmissions with incorrect end play may have been reassembled incorrectly. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Answer 3

C

Question 4

In gear-type power transfer, the power is transferred from transmission planetary gears to the differential through:

A) sprockets.
B) Morse-style chain.
C) ring gears.
D) helical gears.

Question 5

In most transfer gears and output gears of the gear type, removal of the gears from the shaft is done using a(n):

A) impact gun.
B) pry bar.
C) bolts puller.
D) seal puller.

Question 6

Tech A says that one crescent-type front pump measurement uses a feeler blade between the outer gear and pump body. Tech B says that a micrometer is used to measure the width of the crescent. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 7

Tech A says that when rebuilding a multidisc clutch, the steels should be checked for flatness, and their thickness should be measured. Tech B says that it is common to reuse the clutch piston's lip seals. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 8

Tech A says that clutch pack clearance should be checked with a micrometer. Tech B says that any clearance in the clutch pack means that the clutch discs are worn out. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 9

Tech A says that after rebuilding a clutch, it needs to be air checked before the clutch plates are installed. Tech B says that clutches that are rebuilt outside of the transmission are typically air tested before installing them back in the transmission. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 10

Discoloration of the planetary gears or the planet carrier can be a sign of:

A) incorrect clearance.
B) a gear that is loose on its shaft.
C) fluid contamination.
D) a failed lubrication circuit.

Question 11

Choose the correct statement.

A) Planetary gear sets are generally very durable and usually do not require service when rebuilding a transmission.
B) Fluid flow in an automatic transmission does not affect the operation of the transmission.
C) Bands should be inspected for wear if they are replaced during an automatic transmission rebuild.
D) When rebuilding an automatic transmission, all clutch assemblies should be rebuilt.

Question 12

Use a feeler gauge to measure the amount of clearance on the planetary gears. If the clearance is not correct, install:

A) a thrust washer of a different thickness.
B) special retaining washers.
C) a new pin into the carrier.
D) a thrust washer on both sides of the planet gear.

Question 13

Bushings must be replaced when clearance exceeds:

A) 0.002" (0.050 mm).
B) 0.001" (0.025 mm).
C) 0.003" (0.076 mm).
D) 0.0025" (0.063 mm).

Question 14

Tech A says that to determine whether roller-type thrust bearings need to be replaced, they should be measured with a micrometer. Tech B says that to determine whether thrust washers are worn excessively, they should be measured with a micrometer and compared to specifications. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 15

Tech A says that the torque converter should be bolted to the flexplate before installing the transmission. Tech B says that when installing the torque converter, three separate engagements with their mating parts must be felt. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 16

Tech A says that when inspecting the torque converter, you need to check the snout of the converter where the seal and bushing rides for excessive wear. Tech B says that the end play of the converter must be checked. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 17

Tech A says that when assembling a transmission, the components should be lubricated with the correct automatic transmission fluid or transmission assembly lube. Tech B says that the transmission end play needs to be measured after the front pump is installed. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 18

All of the following statements are true with respect to sprag clutch inspection except:

A) They can be only partially disassembled.
B) They can be assembled in any direction.
C) They have to be serviced as a single unit if any damage is found.
D) Clean all of the components of the sprag in a solvent tank before inspection.

Question 19

Tech A says that a one-way roller clutch will work fine if assembled in either direction. Tech B says that sprag clutches must be serviced as a complete unit if any damage is found. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 20

All of the following statements with respect to the inspection of mechanical diodes are true except:

A) After removing each of the struts and springs from the pocket plate, clean the components in a solvent tank.
B) Each of the notches that the struts lock into must not show any signs of wear.
C) The end of the struts will become smoother as they wear.
D) If the springs are bent or cracked, the unit will typically need to be replaced.

Question 21

Ring and pinion backlash checks may be a requirement when overhauling an automatic transaxle, but not when overhauling an automatic transmission.

Question 22

How does the construction and testing of transaxles compare to traditional automatic transmission?

A) Transaxles have more parts but less tests than transmissions
B) Transaxls have fewer parts and fewer tests than transmissions
C) Transaxles have an equal number of components and tests as transmissions
D) Transaxles have a few more parts and a few more tests than transmissions

Question 23

The power transfer from the power portion of the transaxle to the final drive portion of the transaxle can occur by which of the following methods?

A) Gear style or clutch style
B) Chain style or gear style
C) Chain style or clutch style
D) A steel V belt or electric motor

Question 24

In a transaxle where the power transfer from transmission to final drive is through gears, what kind of gears are used?

A) Helical
B) Hypoid
C) Herringbone
D) Bevel

Question 25

When rebuilding a transaxle with a gear style of power transfer, if excessive wear is found on either gear, both gears in the set will require replacement.

Question 26

In an automatic transaxle with a gear style of power transfer, the transfer shaft transmits the power to the ring gear of the differential case.

Question 27

When rebuilding an automatic transaxle with a chain style of power transfer, the what needs to be checked for wear?

A) Chain
B) Tensioner
C) Sprockets
D) Both A and C

Question 28

Some transaxles use a chain to connect from the torque converter to the input shaft of the transmission.

Question 29

Output shaft end play and side gear backlash must be checked on an automatic transaxle. What are the possible problems if backlash is incorrect?

A) Seizing of the gears and excessive heat buildup
B) Excessive noise and seizing of the gears
C) Excessive heat and driveline vibration
D) Excessive noise and seal leakage

Question 30

When assembling the final drive unit on an automatic transaxle, bearing preload must be measured and adjusted following the vehicle manufacturer's procedure.

Question 31

On an automatic transaxle, changing the preload and backlash often involves changing selective thickness shims.

Question 32

Technician A says that transmission end play can be adjusted with select fit thrust washers. Technician B says that transmission end play should be measured after the front pump is installed. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 33

Which of the following terms refers to the amount of force placed on a bearing before any vehicle load is on the bearing?

A) End play
B) Free play
C) Bearing force load
D) Preload

Question 34

Which of the following terms refers to the amount that a bearing is able to move before hitting the bearing race?

A) Crush fit
B) Free play
C) Bearing force load
D) Preload

Question 35

A scan tool may provide data as to when the torque converter clutch (TCC) solenoid has been energized to apply the TCC solenoid, but many hydraulically controlled transmissions were built before auto manufacturers provided the automotive technician much diagnostic data through the scan tool.

Question 36

On electronically controlled transmissions, the operation of the Torque Converter Clutch (TCC) solenoid is monitored by the Powertrain Control Module (PCM) and can, but may not always, set Diagnostic Trouble Codes (DTCs) if a fault is present.

Question 37

Typically, on hydraulically controlled transmissions, the Powertrain Control Module (PCM) will not set a Diagnostic Trouble Code (DTC) except in the case of an open circuit or a shorted solenoid for the TCC circuit.

Question 38

If the automatic transmission's planetary gear set clearance is not correct, the planetary set will need to be disassembled, if it is a serviceable type, and thrust bearings of a different thickness will need to be installed.

Question 39

Discoloration of a planetary gear set can be a sign of a failed lubrication circuit in the transmission and must be repaired before the discolored gears are replaced and the automatic transmission is placed back into service.

Question 40

If any gear in a planetary gear set is found to be damaged, the companion gears must also be replaced to prevent noisy gears after the rebuild.

Question 41

What should be used to check the thickness of a thrust washer, and the thickness should be compared to the vehicle manufacturer's specifications.

A) A machinist's square
B) A measuring tape
C) A machinist's scale
D) A micrometer

Question 42

When reinstalling _________ in an automatic transmission, apply a small amount of transmission assembly lube to hold them in place.

A) Thrust bearings
B) Thrust washers
C) Both A and B
D) Neither A nor B

Question 43

Which of the following cannot easily be completely disassembled?

A) Sprags
B) One-way rollers
C) Both A and B
D) Neither A nor B

Question 44

Which of the following component can be only partially disassembled?

A) Sprag clutches
B) One-way rollers
C) Both A and B
D) Neither A nor B

Question 45

Rollers or races that show any signs of damage must be replaced, and the lubrication circuit for the one-way roller should be carefully inspected for blockage.

Question 46

Techncian A says preload refers to the amount of force placed on a bearing before any working load is exerted on the bearing. Technician B says free play refers to the amount that a bearing is able to move before hitting the bearing race. Who is correct?

A) Technician A
B) Technician B
C) Both A and B
D) Neither A nor B

Question 47

A ________ should be used to check the thickness of a thrust washer, and the thickness should be compared to the manufacturer's specification.

A) Micrometer
B) Dial indicator
C) Machinist scale
D) Feeler gauge

Question 48

When reinstalling thrust bearings or washers in a transmission, apply a small amount of ______ to help hold it in place.

A) Transmission assembly lube
B) Room temperature vulcanizing silicone
C) Transmission fluid
D) Chassis grease

Question 49

On a one-way roller, the unit should be disassembled to inspect each individual roller. The roller should be checked for _________, such as in a wheel bearing.

A) Pitting
B) Scoring
C) Brinelling
D) All of the above

Question 50

All of the following statements with respect to the inspection of mechanical diodes are true except:

A) After removing each of the struts and springs from the pocket plate, clean the components in a solvent tank.
B) Each of the notches that the struts lock into must not show any signs of wear.
C) The end of the struts will become smoother as they wear.
D) If the springs are bent or cracked, the unit will typically need to be replaced.

Question 51

Tech A says that a one-way roller clutch will work fine if assembled in either direction. Tech B says that sprag clutches must be serviced as a complete unit if any damage is found. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 52

All of the following statements are true with respect to sprag clutch inspection except:

A) They can be only partially disassembled.
B) They can be assembled in any direction.
C) They have to be serviced as a single unit if any damage is found.
D) Clean all of the components of the sprag in a solvent tank before inspection.

Question 53

Tech A says that when assembling a transmission, the components should be lubricated with the correct automatic transmission fluid or transmission assembly lube. Tech B says that the transmission end play needs to be measured after the front pump is installed. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 54

Tech A says that when inspecting the torque converter, you need to check the snout of the converter where the seal and bushing rides for excessive wear. Tech B says that the end play of the converter must be checked. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 55

Tech A says that the torque converter should be bolted to the flexplate before installing the transmission. Tech B says that when installing the torque converter, three separate engagements with their mating parts must be felt. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 56

Tech A says that to determine whether roller-type thrust bearings need to be replaced, they should be measured with a micrometer. Tech B says that to determine whether thrust washers are worn excessively, they should be measured with a micrometer and compared to specifications. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 57

Bushings must be replaced when clearance exceeds:

A) 0.002" (0.050 mm).
B) 0.001" (0.025 mm).
C) 0.003" (0.076 mm).
D) 0.0025" (0.063 mm).

Question 58

Discoloration of the planetary gears or the planet carrier can be a sign of:

A) incorrect clearance.
B) a gear that is loose on its shaft.
C) fluid contamination.
D) a failed lubrication circuit.

Question 59

Choose the correct statement.

A) Planetary gear sets are generally very durable and usually do not require service when rebuilding a transmission.
B) Fluid flow in an automatic transmission does not affect the operation of the transmission.
C) Bands should be inspected for wear if they are replaced during an automatic transmission rebuild.
D) When rebuilding an automatic transmission, all clutch assemblies should be rebuilt.

Question 60

Use a feeler gauge to measure the amount of clearance on the planetary gears. If the clearance is not correct, install:

A) a thrust washer of a different thickness.
B) special retaining washers.
C) a new pin into the carrier.
D) a thrust washer on both sides of the planet gear.

Question 61

In gear-type power transfer, the power is transferred from transmission planetary gears to the differential through:

A) sprockets.
B) Morse-style chain.
C) ring gears.
D) helical gears.

Question 62

In most transfer gears and output gears of the gear type, removal of the gears from the shaft is done using a(n):

A) impact gun.
B) pry bar.
C) bolts puller.
D) seal puller.

Question 63

Tech A says that one crescent-type front pump measurement uses a feeler blade between the outer gear and pump body. Tech B says that a micrometer is used to measure the width of the crescent. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 64

Tech A says that when rebuilding a multidisc clutch, the steels should be checked for flatness, and their thickness should be measured. Tech B says that it is common to reuse the clutch piston's lip seals. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 65

Tech A says that clutch pack clearance should be checked with a micrometer. Tech B says that any clearance in the clutch pack means that the clutch discs are worn out. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 66

Tech A says that after rebuilding a clutch, it needs to be air checked before the clutch plates are installed. Tech B says that clutches that are rebuilt outside of the transmission are typically air tested before installing them back in the transmission. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 67

Preload refers to the amount of:

A) clearance between the bearings and the bearing races.
B) force placed on a bearing before any load is on the bearing.
C) impact damage as the bearings hammer back and forth against the bearing races.
D) load that a bearing can take without difficulty to spin.

Question 68

A bearing will suffer from impact damage when there is:

A) too much free play.
B) excessive load on the bearing.
C) too much preload.
D) over-tightening of a bearing.

Question 69

Tech A says that if the end play is insufficient, it may cause premature wear on the thrust bearings. Tech B says that transmissions with incorrect end play may have been reassembled incorrectly. Who is correct?

A) Tech A
B) Tech B
C) Both A and B
D) Neither A nor B

Question 70

How does the construction and testing of transaxles compare to traditional automatic transmission?

A) Transaxles have more parts but less tests than transmissions
B) Transaxls have fewer parts and fewer tests than transmissions
C) Transaxles have an equal number of components and tests as transmissions
D) Transaxles have a few more parts and a few more tests than transmissions

Question 71

The power transfer from the power portion of the transaxle to the final drive portion of the transaxle can occur by which of the following methods?

A) Gear style or clutch style
B) Chain style or gear style
C) Chain style or clutch style
D) A steel V belt or electric motor

Question 72

In a transaxle where the power transfer from transmission to final drive is through gears, what kind of gears are used?

A) Helical
B) Hypoid
C) Herringbone
D) Bevel

Question 73

When rebuilding an automatic transaxle with a chain style of power transfer, the what needs to be checked for wear?

A) Chain
B) Tensioner
C) Sprockets
D) Both A and C

Question 74

Output shaft end play and side gear backlash must be checked on an automatic transaxle. What are the possible problems if backlash is incorrect?

A) Seizing of the gears and excessive heat buildup
B) Excessive noise and seizing of the gears
C) Excessive heat and driveline vibration
D) Excessive noise and seal leakage

Question 75

Which of the following terms refers to the amount that a bearing is able to move before hitting the bearing race?

A) Crush fit
B) Free play
C) Bearing force load
D) Preload

Question 76

Which of the following bushings is most likely to be worn and need replacement during a transmission repair or overhaul?

A) Front pump bushing
B) Extension housing bushing
C) Any friction-type bushing
D) Both the front pump and extension housing bushings

Question 77

Which of the following should you inspect each bushing inside an automatic transmission for?

A) Scratches
B) Scoring
C) Large pits
D) All of the above

Question 78

If thrust bearings or washers are worn, ______ movement of components inside the automatic transmission will be allowed, affecting their operation.

A) Parallel
B) Lateral
C) Horizontal
D) None of the above

Question 79

What should be used to check the thickness of a thrust washer, and the thickness should be compared to the vehicle manufacturer's specifications.

A) A machinist's square
B) A measuring tape
C) A machinist's scale
D) A micrometer

Question 80

When reinstalling _________ in an automatic transmission, apply a small amount of transmission assembly lube to hold them in place.

A) Thrust bearings
B) Thrust washers
C) Both A and B
D) Neither A nor B