ATASA 5 Manual Transmission & Transaxle...31. Manual transmissions have a separate switch to complete the _ light circuit to ground when the transmission is shifted into reverse

ATASA 5 th Study Guide Chapter 37 Pages 10921137 Manual Transmission & Transaxle 52 Points

Be Certain to Read the Summary

ATASA 5 th Manual Transmission & Transaxle

1. Gears in the transmission or transaxle alter the _______ & _______ of the engine’s power input before passing it on to other components in the drive train.

Torque, Speed Speed , RPM Torque, Power


2. A RWD vehicle is fit with a _________________, a FWD vehicle is fit with a ___________________, and 4WD vehicles typically use as transmission and a _________________ ________.

Transmission

Transaxle

Transfer Case


3. Most manual transmissions are constant ________ fully ____________________ units…explain this:

Constant Mesh, Fully Synchronized


4. Manual transmissions commonly have a 5 th & 6 th gear to provide __________________ ratios for mpg

Reduction Direct Overdrive


5. Selfshifting transmissions where the driver uses buttons or __________ on the steering wheel to change gears use computer controlled actuators to move shift forks. Response time is very fast.

Riddles Paddles Oars


6. Gear sets can multiply ____________ & decrease speed or increase __________ & decrease torque. Torque and speed can also be transmitted unchanged in a direct 1:1 ratio. (ratios are expressed in speed)

NOTE: Torque & Speed Tradeoffs


7. Gear __________ is determined by dividing the # of teeth on a gear by the pitch diameter of the gear. The important fact to remember is that gears must have the same pitch to operate together.


8. ________ gears have their teeth cut straight across the edge, parallel to the gear’s shaft or axis.

Bevel Spur Helical


9. Spur gears are a simple design, with only ___ tooth in contact at a time and are noisy in operation.


10. ______________ gears have their teeth cut at an angle or a spiral to their axis.

Bevel Spur Helical


11. Helical gears are ________________ & ____________ in operation since more than one tooth is in contact at a time. Their drawback is that they generate an axial thrust that needs to be absorbed.

Smarter & Prettier Bigger & Better Stronger & Quieter


12. Two external gears in mesh rotate in ______________ directions. An ________________ gear meshed with an external gear will both rotate in the same direction.



13. An __________ gear is placed between an external drive & driven gear to transfer motion without changing direction. This concept is used for reverse in a manual transmission or transaxle.



14. Gear _________ express the mathematical & torque relationships of one gear to another.

Ratio Proportion Odds


15. Dividing the # of teeth on the __________ gear (output) by the # of teeth on the _________ gear (input) results in the gear ratio.

Driven = Output

Drive = Input

Driven = Gear Ratio Drive


16. Ratios greater than 1:1 are reductions in __________ & gains in ____________. (4:1 is lower than 2:1)

Ratios less than 1:1 are __________________ in speed & losses or _______________ in torque.

Choose from: Speed & Torque


17. ________________ the ratios of two gearsets in contact with each other to get the final drive ratio.

Multiply Divide Add Subtract



18. A RWD manual transmission has 3 basic shafts: _________, ________________ & __________.


18. A RWD manual transmission has 3 basic shafts: _________, ________________ & __________.

Synchronizer

Counter Shaft

Input Shaft Output Shaft



19. The countershaft is a.k.a. the _____________ shaft. (cluster gear) Input shaft is a.k.a. the __________ shaft. (input cluster on FWD TX)

Clutch Shaft or Pilot Shaft

Cluster Shaft

a.k.a. = also known as


20. The main gears on the output or main shaft are known as the ___________ gears.

Greed Gears Speed Gears Steed Gears


21. Speed gears freewheel on the main shaft until they are locked on to it by a _____________________.

Energizer Synchronizer Demonizer


22. A transaxle’s input shaft may be called an input ___________ or the clutch shaft.

Cluster Muster Thruster


23. The output shaft may be called the ____________ shaft since it drives the differential ring gear.

Pinion Drive Axle


24. The ____________ brings components rotating at different speeds to one synchronized speed and then locks the components (speed gear & output shaft) together to transfer power flow.


Synchronizer Assemblies


25. Synchronizers have a center ______ splined to the output shaft, bronze ________ rings (bauk) with clutch teeth (dog) and internal cone surfaces, and a __________ moved by a “synchro” fork to make the gear shift.




26. The blocking ring’s _______________ friction surface contacts the external cone surface on the speed gears.


27. Multiple ________ synchronizers are used to gain friction surface area without increasing case size.

Cone Scone Drone



28. Shift __________ move “synchro” sleeves. Shift forks are moved on shift _________ by shift linkage.

Corks & Nails Forks & Rails Knifes & Forks



29. _________________ on shift rails are devices to prevent shifting into more than one gear at a time. Detent notches & springloaded balls on the rails give the “click” feel & help to hold in gear.

Interlocks Time Clocks Wheel Chocks

Detent Notches


30. A transaxle contains the final drive ________ gear which is driven by a helical pinion gear on the output shaft. This supplies another torque multiplication (speed reduction) to the axle shafts.

Ring Sting Chaching




31. Manual transmissions have a separate switch to complete the _____________ light circuit to ground when the transmission is shifted into reverse.

Turn Signal High Beam Back up


32. Transmissions may also contain the _________ ________ sensor which signals the PCM to illuminate the upshift lamp. The VSS or OSS is also used to operate the speedometer & odometer.

Wheel Speed Engine Speed Vehicle Speed


33. Some transmissions also have an electric __________ __________ system to prevent shifting into reverse when the vehicle is moving forward at a speed of 12 mph or more.

Reverse Lockout Reverse Lockdown Reverse Lockup


34. A feature called “__________ ___________” or “skip shift” blocks certain shift patterns at specified coolant temperatures and specified throttle positions.

Shift Blocking Shaft Blocking Shift Rocking



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ATASA 5 Manual Transmission & Transaxle...31. Manual transmissions have a separate switch to complete the _____ ____ light circuit to ground when the transmission is shifted into reverse

ATASA 5 Manual Transmission & Transaxle...31. Manual transmissions have a separate switch to complete the _ light circuit to ground when the transmission is shifted into reverse