Unit 1 - Transmission Overhaul

A Belleville spring is commonly found inside a _________.

Multiple Disc Clutch

___________ bearings are thrust washers fitted with roller bearings.

Torrington

A Ravigneaux planetary carrier contains both long and short planet pinions.

True

Hydraulic valve design are being discussed. Technician A says spook valves have at least. Two lands that are connected by a thin stem. Technician B says check ball and poppet are valve designs. Who is correct?

Both a and b

Technician A says Vortex flow is the flow of transmission fluid from the center to the outside edge and back. Technician B says Rotary flow is the oil flow around the circumference of the torque converter. Who is correct?

Both a and b

Technician A says a purpose of a lockup piston clutch is to improve fuel economy. Technician B says a lockup piston clutch is designed with a damper assembly to transmit driving torque and absorb shock. Who is correct?

Both a and b

Technician A says a simple planetary gearset can provide two reverse gear ratios. Technician B says a simple planetary gearset can provide two forward reduction ratios. Who is correct?

Both a and b

Technician A says driveline vibration that changes with the engine speed can be caused by an unbalanced torque converter. Technician B says driveline vibration that changes with road speed can be caused by a bad universal joint. Who is correct?

Both a and b

Technician A says if the sun and the ring gear are both driven (locked) and the carrier is the output, the condition is direct drive. Technician B says if the carrier and the sun are both driven (locked) and the ring gear is the output, the condition is direct drive. Who is correct?

Both a and b

Technician A says the transmission oil pump is driven by the converter shell and continually delivers transmission fluid under pressure into the torque converter through a hollow shaft at the center axis of the converter assembly. Technician B says transmission fluid leaving the Turbine is directed out of the torque converter to an external oil cooler and then to the transmission's oil sump or Pan. Who is correct?

Both a and b

Two technicians are discussing band adjustment. Technician A says the band adjustment screws are located on the outside of the transmission case. Technician B says the band adjustment screws are located inside the transmission and the pan must be removed to make the adjustment. Who is correct?

Both a and b

A tapered roller bearing is designed to accept _______ loads.

Both radial and axial

Which of the following is NOT a type of pump used is an automatic transmission?

Centrifugal Type

When hydraulic pressure is applied to one side of a ______ servo, the band is applied. When hydraulic pressure is applied to the opposite side of the piston the band is released.

Compound

Which of the following is NOT a type of rubber seal used in an automatic transmission?

Counterbore Seal

If the sun gear and planetary carrier are both driven (locked together), the gear ratio will be ___________.

Direct Drive

Today's transmission have at least one _______ Gear to reduce fuel consumption, Lower emission levels, and reduce noise while the vehicle is cruising

Overdrive

To boost transmission line pressure, throttle pressure is applied to the _________.

Pressure Regulator Spool Valve

The function of the throttle valve in the valve body is to _______.

Produce a fluid pressure that is proportional to engine load

In a simple planetary gearset, whenever the planetary carrier is held, the condition will be __________.

Reverse

At coupling speed, the overrunning clutch in the torque converter is _______

Rotating Forward

_______ type and roller overrunning clutches are used to hold or drive members of the planetary gearset in one direction and allow them to freewheel in the opposite direction.

Sprag

The multiplier of torque converter fluid is the ______

Stator

A Lockup Torque Converter eliminates the _______ percent slip that takes place between the Impeller and Turbine during the coupling stage.

10

A servo assembly converts mechanical force to hydraulic pressure.

False

Line pressure is used as an indication of engine load and influences the speed at which automatic shifts will take place.

False

What tool is needed to adjust the bands?

Inch/pound torque wrench

Technician A says the Turbine shaft is splined to the Turbine and transfers power from the torque converter to the transmission's main driveshaft. Technician B says the transmission oil pump is driven by the Turbine shaft. Who is correct?

Neither a or b

A check ball is a simple hydraulic valve.

True

The EPC (Electronic Pressure Control) solenoid is duty-cycle-controlled by the TCM (Transmission Control Module).

True

Whenever two members of a simple planetary gearset are locked together, the output will be direct drive.

True

Which of the following torque converter components connects to the transmission input shaft?

Turbine

A CVT transmission uses ______ to provide speed reduction and torque multiplication

A Belt and Pulleys

Technician A says multiple-disc clutch packs are capable of holding or driving gearset members. Technician B says overrunning (one-way) clutches are capable only of holding gearset members. Who is correct?

A only

Technician A says torque converters are three-piece units that are bolted together and can be easily disassembled for cleaning and repairs. Technician B says the torque converter is completely filled with pressurized transmission fluid. Who is correct?

B only

Two technician are discussing transmission oil pumps. Technician A says the oil pump is driven by the Turbine shaft. Technician B says the pump is driven by the hub on the back of the converter housing. Who is correct?

B only

Two technicians are discussing transmission bearings. Technician A says thrust washers are used to support radial loads. Technician B says thrust washers are used to support axial loads. Who is correct?

B only

Single wrap and double wrap are types of ____________.

Bands

Two technicians are trying to install a remanufactured transmission and torque converter in a vehicle. No matter how well they align the transmission with the engine, the transmission will not slide onto the dowel pins. Technician A says the pilot hub on the converter could be damaged. Technician B says one of the dowel pins could be out of round. Who is correct?

Both a and b

The transmission for many hybrid vehicles uses ______ to drive and hold planetary gearset members.

Electric Motors

A leaking transmission pump seal can be replaced without removing the transmission.

False

A transmission band assembly is used to drive a planetary member.

False

All automatic transaxles use a simple planetary gearset.

False

Excessive pump pressure is controlled by the pressure regulator valve.

False

Most transmission shops rebuild the torque converter when overhauling the transmission.

False

Multiple disc clutches in an automatic transmission are engaged by spring tension and released (disengaged) by hydraulic pressure.

False

Spool valves. Springs, and other components of the valve body should be cleaned using a wiping rag or paper towel.

False

The wide parts of the spool valve that rides on a thin film of oil in the valve bore of the valve body are called the valley.

False

When a sun gear is the input member and the planetary carrier is held ", the ring (internal/annulus) gear will be driven at a forward overdrive speed.

False

An automatic transmission or transaxle selects ________ according to engine speed, powertrain load, vehicle speed, and other operations factors.

Gear Ratios

Which of the following pressures increases as road speed increases

Governor Pressure

Overrunning clutches are capable of _____________.

Holding a planetary gear member stationary and driving a planetary gear member.

What manufacturer makes automatic transaxles that do not use planetary gears and are similar in construction and operation to manual transaxles?

Honda and Acura

Which of the following torque converter components is attached to the engine flywheel?

Impeller

All late model automatic transmission are equipped with a(n)________ Torque Converter.

Lock-up

When the pressure Regulator valve begins to operate, the line pressure first flows to the ____________.

Manual Valve

Butt-end, open-end, and hook-end are types of __________.

Metal Sealing Rings

Technician A says Teflon seals are harder and wear the seal surface faster than metal seal. Technician B says scarf-cut Teflon seals require special tools for installation. Who is correct?

Neither a or b

Technician A says devices that control radial loads are called thrust washers. Technician B says devices that control axial loads are called bushings. Who is correct?

Neither a or b

A Belleville-Type clutch piston return spring can be used to multiply the force applied to the clutch in addition to releasing the clutch when hydraulic pressure is removed.

True

In addition to conventional snap ring, some are wave shaped and some are available in different thicknesses to adjust multiple-disc clutch pack clearance.

True

In addition to the compound planetary gearset, many automatic transmission are fitted with and additional single planetary gearset to provide additional gear ratios.

True

Lip seals are sometimes build into ball bearings to retain lubricants.

True

Slippage during shifting May indicate that a band needs adjustment.

True