Powerstrain- Cody

First gear has a ____ gear ratio

3:1

Typically, _____ or _____ gear oil is recommended for manual transmissions

80W or 90W

What may cause hard shifting?

A bent or misaligned shift rod

In third gear, the gear ratio is approximately_____. A) 1:1 B) 2:1 C)3:1 D) 4:1

A) 1:1

What two functional differences are there between an automatic transmission and a manual transmission?

Automatic shift gears and releases clutch automatically and more smoothly, it also uses planetary gear sets. Manual you shift gears and uses helical gear sets

In second gear, the gear ratio is approximately_____. A) 1:1 B) 2:1 C) 3:1 D) 4:1

B) 2:1

An electric switch, known as a _____ switch, is closed by the action of the reverse gear linkage. A) Lamp B) Back-up light C) Ignition spark D) Transmission

B) Back-up light

How is gear ratio calculated?

By dividing the number of teeth on the driven gear by the number of teeth on the drive gear

Functions of oil pan:

Collects and stores a supply of transmission oil

A ____ is part of a modern torque converter A) Impeller B) turbine C) Stator D) All of the above

D

Which of the following is NOT a problem that can cause gear grinding during shifts? A) worn or damaged synchronizers B) excess wear in shafts C) worn shift forks D) low or contaminated lubricant

D

Functions of Transmission case

Encloses the clutches, bands, gear sets, and inner ends of the transmission shafts

Bolts to the rear of case

Extension housing

What are the three methods of transmitting power in an automatic transmission?

Fluid, friction, & gears

How should you begin diagnosis of a transmission problem?

Gather basic information from the customer. Then test drive the vehicle to verify complaint. Find out which gears in the transmission act up. Does it happen at specific speeds?

Transfers power from clutch disc to countershaft gears

Input shaft

Why replace all gasket and seals in the transmission, eve if they are not leaking before teardown?

It could start to leak after reassembly

THe (input, output) shaft connects the driving components in the transmission with the drive shaft

Output

Before installation, place a small amount of grease in the ____ and on the inner surface of the _____.

Pilot bearing throw-out bearing

Define gears

Round wheels with teeth machined on their perimeters

What is the most common type of compound planetary gearset used in automatic transmissions?

Simpson

Functions of extension housing:

Slides over and supports the output shaft

If a transmission is noisy in all gears, what does that tell you?

Something common to all the gears is at fault

What is the difference between a spur gear and a helical gear

Spur gears are cut parallel to the centerline of the gear shaft. Helical gears are machined at an angle to the centerline of the gear shift

What is a stationary shaft splined to the stator assembly?

Stator support

What does a planetary gear set consist of?

Sun gear, several planet gears, a planet gear carrier, and a ring gear

True or False? During transmission installation, shift the transmission into high gear to help position the input shaft into the clutch disc.

True

When does rear reduction occur

When a small gear drives a large gear to increase turning force or torque.

In your own words, describe a manual transmission

basically you are the transmission, meaning you tell the car when to shift gears

If gear tooth wear is uneven, check the shaft ____ and shafts

bearings

During gear engagement, the ____ rubs on the side of the gear cone, setting up friction between the two

blocking ring

In first gear, the gear ratio is approximately______. a) 1:1 b) 2:1 c) 3:1 d) 4:1

c) 3:1

Supports transmission bearings and shafts

case

In neutral, all the synchronizer sleeves are located in the _____ of their hubs.

center

Automatic transmission ____ and _____ are friction devices that drive or lock planetary gearset members

clutches and bands

A ____ planetary gearset combines to planetary units in one housing or ring gear

compound

turns the gears on the output shaft

countershaft gears

Name two things that can cause transmission failure

driver abuse and normal wear after prolonged service

Name the two general types of transmission linkage

external shift Rod and internal shift rail

True or false? An automatic transmission uses a very thick and heavy flyhweel

false

True or false? When blowing bearings dry with compressed air, allow the bearing to spin

false

True or false? With the transmission out of the vehicle, there is usually no reason to disassemble and inspect the condition of the clutch

false

true or false? the one-way clutch locks the stator when the impeller is turning slower than the turbine

false

The torque converter is very large and heavy, which allows it to serve as a ____ to smooth out engine power pulses

flywheel

Shift ____ fit around the synchronizer sleeves to transfer movement from the gear shift linkage to the sleeves

forks

In your own words, describe how an automatic transmission clutch functions

friction devices that drive or lock gearset members

covers front transmission bearing

front bearing hub

What should a manual transmission in good condition be able to do

increase torque going to the drive wheels for quick acceleration. Supply different gear ratios to match different engine load conditions. Have a reverse gear for moving backwards. provide the driver with an easy means of shifting gears. Allow downshifting into any gear while the vehicle is moving, with all gears synchronized.operate quietly, with maximum power loss.

An automatic transmission (input, output) shaft connects the torque converter with the driving components in the transmission

input

Name the basic parts of a manual transmission

input shaft, transmission gears, synchronizers, shift forks, shift linkage, gear shift lever, output shaft, transmission case

Functions of bell housing

it surrounds the torque converter and holds the transmission against the engine

A grinding sound when shifting is commonly caused by incorrect transmission _____ adjustment

linkage

A ____ has an internal friction clutch for clamping the impeller to the turbine

lockup torque converter

Torque ____ refers to the ability of A torque converter to increase the amount of engine torque applied to the transmission input shaft

maltiplication

Holds the output gears and synchronizers

output shaft

A ____ ratio results when a larger gear drives a smaller gear

over drive

In many modern transmissions, high gear is a _____ gear ratio

overdrive

Gear reduction can also be produced in the planetary gearset by turning the (sun,ring) gear and holding the (sun,ring) gear

ring sun

Name two causes of manual transmission lubricant leaks

ruptured gaskets and worn seals

The ____ speed of a torque converter occurs when the impeller is at maximum speed without rotation of teh turbine

stall

prevents hear grinding or clashing

synchronizer

What happens when a transmission jumps out of gear?

the drivers shift lever "pops" or moves into neutral while driving

A ____ combines both the transmission and the differential into a single housing

transaxle

True or False? When repairing a manual transmission, you must be able to identify the exact type of transmission

true

True or false? In simple terms, a torque converter works like the force of moving air generated by one fan moving the blades of another fan

true

true or false? Very little torque is needed to propel a vehicle at a constant speed on level ground

true

How many planetary gearsets does an automatic transmission use?

two or more