Exam 14: Transmission Disassembly

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?

On high-mileage vehicles, the clutches and steels can sometimes wear grooves into the sides of the automatic transmission case.

Aluminum can become porous after excessive cleaning of the case with detergents and solvents.

Which of the following may be ignored?

Technician A says while disassembling the transmission, by working carefully and being observant you can discover clues as to why a transmission failed. Technician B says you should quickly disassemble a transmission and begin cleaning the parts to save on time. Who is correct?

Tech A says that an end play measurement should be performed before disassembling a transmission. Tech B says that it is not necessary to perform an end play measurementbefore disassembling the transmission because you will be rebuilding and replacing components that will affect the end play. Who is correct?

Technician A states that many transmission assemblies have large return springs that must be compressed with specialty tools. Technician B states that small transmission parts can be easily lost if the technician is not careful. Who is correct?

A transmission with too little end play could indicate:

Choose the correct order of dismantling the external components.

Technician A says that all internal transmission work must be performed in a clean environment. Technician B says that even the smallest dirt or debris in a valve body can cause a valve in a valve body to stick in its bore. Who is correct?

Technician A says preload refers to the amount of force placed on a bearing before any load is on the bearing. Technician B says free play refers to the distance that a bearing is able to turn before locking up. Who is correct?

Tech A says that the transmission case sealing surfaces should be checked with a straight edge. Tech B says that the valve body must be stored flat to prevent warping it. Who is correct?

Tech A says that if the case vent is plugged it can result in fluid leaks from the transmission. Tech B says that the case vent should be blown out with compressed air while the transmission is apart. Who is correct?

All of the following statements are true except:

When disassembling a transmission, it is good to disassemble it into its unit assemblies because it helps in all of the following except:

Technician A says that if there is excessive up and down play in the driveshaft, the extension housing bushing should be replaced. Technician B says that on many transmissions the extension housing has to be removed to replace the bushing, but on some older transmissions special pullers and installers could make this an in-vehicle repair. Who is correct?

Tech A says that a pick and a hammer can be used to remove the low/reverse clutch piston from the transmission case. Tech B says that compressed air is helpful to remove the low reverse clutch piston. Who is correct?

Tech A says that when you are rebuilding a transmission that you have never seen before it is helpful to take pictures during disassembly. Tech B says that it is critical that you keep all of the parts organized during disassembly. Who is correct?

A transmission with too little end play could indicate:

Which of the following indicates that the bushings in the transmission may need to be replaced?