Question 1

Technician A says spinning bearings with compressed air is a good way to dry them. Technician B says spinning a bearing with air may cause it to be damaged. Who is correct?

Accepted Answer

Technician B is correct. Spinning a bearing with compressed air can cause it to spin too fast and result in damage to the bearing cage or the raceways. It is best to use a soft cloth or let them air dry to prevent damage.

Question 2

Technician A checks the engine and transmission mounts by running the engine at 1,500 rpm and with the park brake on lightly applying the clutch, while an assistant observers the movement of the engine and transmission. Technician B checks the mounts by applying 100 ft./lbs. of torque to the drive shaft with a torque wrench while measuring the movement of the engine with a dial indicator. Who is correct?

Accepted Answer

Technician A's method is a common practice to check for excessive movement in engine and transmission mounts by observing the engine's behavior under load. Technician B's method is not a standard practice for checking mounts.

Question 3

Which of the following will NOT cause gear clash?

Accepted Answer

Worn countergear bearings can cause other issues with the transmission, such as noise or difficulty shifting, but they will not directly cause gear clash. Gear clash typically occurs when the teeth of the gears do not properly mesh together, which can be caused by using incorrect lubricant, having incorrect clutch adjustment, or having worn synchronizer blocking rings.

Question 4

Technician A checks the transmission mounts by pushing up and down on the transmission while observing the mounts. Technician B says if the case moves up but not down, the mounts require replacement. Who is correct?

Accepted Answer

Both technicians A and B are correct. Technician A's method of checking the transmission mounts is a valid way to determine their condition. Technician B is also correct in stating that if the transmission case moves up but not down, it indicates worn or damaged mounts that require replacement. Therefore, both technicians A and B are correct.

Question 5

Technician A says a transmission noise is caused by something internal if it is most noticeable during a test drive. Technician B says the noise is caused by the clutch if the noise disappears when the clutch is disengaged. Who is correct?

Accepted Answer

The answer of Technician A says a transmission noise is...

Question 6

Technician A says hard shifting in all gears may be caused by a single worn synchronizer assembly. Technician B says hard shifting in all gears may be caused by incorrect clutch linkage adjustment. Who is correct?

Accepted Answer

The answer of Technician A says hard shifting in all...

Question 7

Prior to disassembling the transmission/transaxle, clean the unit with a ______.

Accepted Answer

All the options (cleaning solvent, degreaser, steam cleaner) are valid methods for cleaning a transmission/transaxle before disassembly.

Question 8

Technician A says if the dog (clutch) teeth of the synchronizer are rounded, the synchronizer should be reused. Technician B says the movement of the synchronizer sleeve on the shaft should be checked. Who is correct?

Accepted Answer

Technician B is correct because checking the movement of the synchronizer sleeve on the shaft is a necessary step to ensure proper function. Technician A is incorrect because if the dog teeth are rounded, the synchronizer should not be reused as it may lead to gear slipping or difficulty in shifting.

Question 9

What could cause transmission fluid to drip out of the transmission vent?

Accepted Answer

The answer of What could cause transmission fluid to drip...

Question 10

A transmission is being assembled, but the mainshaft and input shaft do not easily slide into their bores in the transmission case. Technician A installs the mainshaft assembly into the case by tightening the extension housing retaining bolts. Technician B installs the input shaft by tightening the front bearing retainer bolts. Who is correct?

Accepted Answer

Tightening the retaining bolts to force the shafts into place is not a proper assembly technique and could damage components or cause misalignment. The cause of the restricted fit should be identified and corrected before attempting to install the shafts.

Question 11

When installing a ball bearing that is a press fit [tight] onto the main shaft, pressure should be applied to the _____ race.

Accepted Answer

Pressure should be applied to the inner race when installing a ball bearing onto a shaft to avoid damaging the bearing by ensuring the force is transmitted directly to the race that is being fitted.

Question 12

A car jumps out of gear into neutral when decelerating or going down hills. Technician A checks the shift lever and internal gearshift linkage. Technician B says the clutch pilot bearing could be the problem. Who is correct?

Accepted Answer

The answer of A car jumps out of gear into...

Question 13

While discussing transmission/transaxle rebuilding procedures, Technician A says shims located under bearing cups should always be replaced. Technician B keeps all shims and bearing races together and identified for reinstallation in their original location. Who is correct?

Accepted Answer

Technician B's approach of keeping all shims and bearing races together and identified for reinstallation in their original location is correct because it ensures that the components maintain their original clearances and settings, which is crucial for the proper operation of the transmission or transaxle.

Question 14

Gold-colored particles in the transmission fluid are an indication of worn ______.

Accepted Answer

The answer of Gold-colored particles in the transmission fluid are...

Question 15

Technician A says broken or worn engine and transaxle mounts can cause a transaxle to have shifting problems. Technician B says poor shift boot alignment cannot cause a transaxle to jump out of gear. Who is correct?

Accepted Answer

Broken or worn engine and transaxle mounts can cause a transaxle to have shifting problems because it affects the alignment and position of the transmission in relation to the engine. Poor shift boot alignment, on the other hand, may not directly cause a transaxle to jump out of gear but it can contribute to a poor shifting feel and potential damage to the shift linkage over time.

Question 16

Technician A says the transmission output shaft seal is prone to leakage. Technician B says a worn transmission rear bushing may contribute to output shaft seal leakage. Who is correct?

Accepted Answer

Both technicians are correct. The transmission output shaft seal is prone to leakage because it is constantly exposed to high pressure and heat. A worn transmission rear bushing may contribute to output shaft seal leakage because it can cause misalignment and excessive vibration, which can lead to the seal failing quicker.

Question 17

Transmission ID numbers are being discussed. Technician A says most identification numbers include the model, gear ratios, manufacturer, and assembly date. Technician B says the transmission ID number is located on the driver's side door pillar. Who is correct?

Accepted Answer

Transmission ID numbers typically include details such as the model, gear ratios, manufacturer, and assembly date. They are not located on the driver's side door pillar; this is where the vehicle's VIN and other information might be found.

Question 18

A growling noise that occurs when the transaxle is in neutral, the vehicle is not moving, the engine is running, and the clutch is engaged is most likely caused by ______.

Accepted Answer

The growling noise when the vehicle is in neutral and the clutch is engaged is likely due to the input shaft bearing, as it is the component that is engaged and spinning when the engine is running and the clutch is engaged.

Question 19

A rough growling noise occurs when the engine is running, the transmission is in neutral, the clutch is engaged, and the vehicle is not moving. Technician A says the input shaft bearing may be faulty. Technician B says the countergear bearing may be faulty. Who is correct?

Accepted Answer

Both technicians have valid suggestions for the cause of the rough growling noise. The input shaft bearing and countergear bearing are both possible culprits in this situation.

Question 20

Manual transaxle input shafts are typically supported by ______ bearings.

Accepted Answer

Manual transaxle input shafts are typically subjected to high loads, so they require bearings that can handle heavy loads and resist wear. Tapered roller bearings are better suited than other types of bearings as they can handle both radial and axial loads and their design allows for better distribution of loads.

Quiz 39: Manual Transmissiontransaxle Service