Manual Transmission and Tranaxles
In a rear axle, the drive pinion gear works with ________.
All of these are correct.
When measuring crankshaft end play, a maximum of ________ is allowed.
.0005 inch
What is a typical pinion bearing preload, when measured with a torque wrench on the pinion nut?
17-22 inch-pounds
What is the final drive ratio of this gear set?
3.72:1
A ring and pinion gear set has 11 teeth on the pinion gear and 42 teeth on the ring gear. What is the ratio?
3.81 to 1
If a gear with 20 teeth is driving a gear with 60 teeth, the gear ratio is ________.
3:1
Which of these components is the clutch disc?
A
An interlock system is used in a transmission to prevent ________.
A shift form from engaging the wrong synchronizer hub
Insufficient slave cylinder travel means ________ in the system.
Air
A drive axle assembly can be identified by ________.
All of the above
Before checking the fluid level in a manual transmission or transaxle, what should the technician do?
All of the above
Flywheels are constructed of cast iron because ________.
All of the above
In a transaxle, what type of bearing is used?
All of the above
Which of the following is NOT used as CV joint boot material?
All of these are used as boot materials.
Excessive shift effort during the static shift test could be caused by ________.
All of these could cause excessive shifting effort
What is being checked in this illustration?
Backlash
All of the following should be observed carefully when checking bearings EXCEPT ________.
Bearings should be air dried by spinning them with compressed air
A five-speed transmission is in second gear. Which is correct?
Both A and B
A five-speed transmission is in third gear. Which is correct?
Both A and B
In a transaxle, the synchronizer assemblies are mounted on the ________.
Both A and B
Most nonmetallic clutch facings have grooves cut across their surface to ________.
Both A and B
The cluster gear is supported by ________.
Both A and B
The clutch pedal overcenter spring is used to help ________.
Both A and B
The input and output shafts of a rear-wheel-drive transmission are called ________.
Both A and C are correct
A clutch disc is being installed. Technician A says that the damper assembly of the clutch disc normally faces the pressure plate. Technician B says that the disc splines should be lightly lubricated. Which technician is correct?
Both Technicians
Technician A says that there are at least four parts that should be replaced when doing a clutch job: the pressure plate, disc, release bearing, and pilot bearing. Technician B says that breathing the dust from a worn pressure plate or disc can cause lung cancer. Which technician is correct?
Both Technicians
While discussing the installation of a pressure plate, technician A says that grade 8 can be used for the mounting bolts. Technician B says that you need to move from bolt to bolt at least two times while tightening the bolts. Which technician is correct?
Both Technicians
A transaxle lubricant level is being checked. Technician A says that the fluid level should be even with the bottom of the filler hole. Technician B says that it should be in the hatch-marked area of the dipstick. Which technician is correct?
Both technicians
Technician A says that the ring gear and pinion gear are manufactured as a matched pair. Technician B says that ring and pinion gear sets are often marked on each piece to identify the matched set. Which technician is correct?
Both technicians
The name most often used to describe the universal joints on a conventional rear-wheel drive vehicle drive shaft is ________.
Cardan
Most manual transmissions use a case made from ________.
Cast aluminum
Transaxle cases are made from ________.
Cast aluminum
Pinion depth is usually adjusted by ________.
Changing the thickness of a shim under the pinion bearing
The backlash exceeds specifications. The technician should position the ring gear ________.
Closer to the drive pinion gear
What component is missing from this starter circuit (circle)?
Clutch switch
Which term describes the relative amount of friction between two surfaces?
Coefficient of friction
An early front wheel drive vehicle was a ________.
Cord
What type of plunging joint is pictured here?
Cross-grove
A squeal is heard as the clutch pedal is depressed about one inch. This is probably caused by a ________.
Defective or worn release (throwout) bearing
Which component allows the rear wheels to turn at different speeds while propelling the vehicle?
Differential assembly
What is the first step in removing a transaxle?
Disconnect the battery
Some front wheel drive vehicles use an intermediate drive shaft that ________ the CV joint angles.
Equalizes
A rear-wheel drive vehicle shudders or vibrates when first accelerating from a stop. The vibration is less noticeable at higher speeds. The most likely cause is ________. Excessive U-joint working angles
Excessive U-joint working angles
Which is NOT a problem usually found with a clutch disc?
Expanded marcel
In this diagram, what gear is engaged?
First gear
Which axle design is used for heavy duty vehicles?
Full floating
A worn or defective axle bearing will likely make what type of noise?
Growl
Drive axle shafts are also called ________.
Half Shaft
The outer ends of the ring gear teeth are also known as the ________.
Heel
The final drive ring and pinion gears in a typical transaxle are of the ________ type?
Helical
A ring and pinion with a 3.76:1 ratio is classified as ________.
Hunting
Which type of gear may be found in a rear-wheel-drive axle?
Hypoid
Which component of a transaxle is attached to the clutch disc?
Input shaft
When one synchronizer is shifted into gear, the movement of the other shifter forks is blocked by the ________.
Interlocks
Using the improper transmission fluid can cause all of these EXCEPT ________.
Jumping out of gear
The detent mechanism inside a transmission is used to ________.
Locate the synchronizer sleeves in the correct position
Technician A says that all that FWD vehicles use U-joints on the front drive axles. Technician B says that all RWD vehicles use CV joints on their rear drive axles. Which technician is correct?
Neither Technician
A transaxle shifts easily into all the gears with the engine shut off, but with the engine running the shifts into all forward gears are hard and there is a clash when shifting into reverse. Technician A says that this problem could be caused by a worn shift fork. Technician B says that there could be worn countershaft bearings. Which technician is correct?
Neither technician
Technician A says that synchronizer sleeves can be replaced onto the hub in any position. Technician B says that blocker rings should be snug and not wiggle around when installed. Which technician is correct?
Neither technician
With the engine running and the transmission in neutral with the clutch engaged (pedal up), which of these is NOT rotating?
Output shaft
What part is often NOT used on a front wheel drive vehicle with a manual transaxle?
Pilot Bearing
The type of gear set used in most automatic transmissions is ________.
Planetary Gears
A clutch disc has measured 0.020 rivet head depth. According to the text what should the technician do?
Replace the clutch disc
The idler gear is used for which gear?
Reverse
The end play in a transmission that uses tapered roller bearings is adjusted using a ________.
Selectable shim
How are tapered roller bearings generally adjusted in a transaxle?
Selective shims
When checking a clutch disc for warpage, a quick check is to ________.
Set the disc flat against the flywheel
When the clutch is engaged (pedal up) ________.
Springs force the pressure plate toward the flywheel
A growling sound is heard from the rear of a rear-wheel-drive vehicle while coasting. Technician A says that defective rear axle bearings may be the cause. Technician B says that defective drive pinion bearings may be the cause. Which technician is correct?
Technician A only
Technician A says that a helical gear is stronger than a spur gear. Technician B says that a helical gear is noisier that a spur gear. Which technician is correct?
Technician A only
Technician A says that the driving side of the ring gear is convex shaped. Technician B says that the coasting side of the ring gear is convex shaped. Which technician is correct?
Technician A only
Drive axle gear oil level is being checked. Technician A says that the oil level should be even with the bottom of the filler hole in all drive axles. Technician B says that a label is mounted at the filler hole of axles that require special lubricant. Which technician is correct?
Technician B only
Technician A says that a clutch must engage completely, all at once. Technician B says that the clutch must slip during engagement. Which technician is correct?
Technician B only
Technician A says that a differential provides the gear reduction needed in the drive axle. Technician B says that the differential can drive two wheels at different speeds. Which technician is correct?
Technician B only
Technician A says that asbestos lining is no longer used because it is too expensive. Technician B says that asbestos lining has been phased out because it presents a health hazard. Which technician is correct?
Technician B only
Technician A says that front and rear U-joints on a RWD axle should operate at different angles to prevent vibration. Technician B says that front and rear U-joints on a RWD axle should operate at equal angles to prevent vibration. Which technician is correct?
Technician B only
Technician A says that spur gears are quieter than helical gears. Technician B says that helical gears produce greater thrust forces than spur gears. Which technician is correct?
Technician B only
Technician A says that the rear axles on FWD vehicles are often called "live axles." Technician B says that rear axles on a RWD vehicle are often called "live axles." Which technician is correct?
Technician B only
Technician A says that worn flywheels should always be replaced. Technician B says that some worn flywheels can be resurfaced. Which technician is correct?
Technician B only
The proper grease to use with CV joints is ________.
The grease that is supplied with the boot kit
When the clutch is released (clutch pedal down), ________.
The release (throwout) bearing is used to move the pressure ring toward the clutch cover
Backlash and carrier side bearing preload adjustments are made by ________.
Threaded adjusters or by changing shims
All drive shafts are balanced.
True
The Rzeppa type joint is the most commonly used outer joint on FWD vehicles.
True
Torque is ___________
Twisting Force
Small differences in driveshaft U-joint angles cause vibration ________.
When accelerating from a stop
A low pitch rumble over 20 MPH (32 km/h) is likely caused by ________.
Worn carrier bearings
"Rust dust" is an indication of what fault?
Worn steel parts such as U-joints