Exam 4: Fasteners and Thread Repair

Which type of sealed wheel bearing requires the use of a hydraulic press or special tool to remove and install it on the vehicle?

Once the broken bolt is removed, run a lubricated tap or thread restoring tool of the correct size and thread pitch through the hole, to clean up any rust or damage.

In a manual transmission, the gears and shafts are supported on bearings or bearing surfaces to:

If a vehicle uses serviceable bearings, the maximum allowable play is approximately ________.

Technician A says that a gasket can only seal imperfections that fall in the gasket's parameters. Technician B says that gaskets are used to seal surfaces with excessive warpage. Who is correct?

What type of bearing is best used to sustain radial and thrust loads?

A/an __________ provides a tight seal against a rotating surface so that lubricants cannot leak out and dirt and contaminants cannot get in.

What is the first step in replacing a seal or gasket?

Single-row, deep-groove ball bearings normally support the ______ in conventional rear-wheel drive manual transmissions.

Technician A says that an abrasive disc can safely be used on any surface when removing an old gasket. Technician B says that plastic scrapers can be safely used on all types of metals without any surface damage. Who is correct?

________ are normally used in pairs in manual transmissions and can sustain heavy radial and thrust loads in either direction.

__________ is a type of sealant used on threads that may not be perfectly shaped.

Technician A says that when pressing a wheel bearing into the steering knuckle, be sure to press on the outer bearing, otherwise the bearing will be damaged. Technician B says that when pressing the axle flange in, the inner bearing must be supported, otherwise the bearing will be damaged. Who is correct?

Technician A says that a replaceable wheel bearing can be serviced on the vehicle with a special tool that does not require steering knuckle removal. Technician B says that a replaceable wheel bearing replacement requires the steering knuckle to be removed and a hydraulic press be used. Who is correct?

In an automotive manual transmission/transaxle, _______ are often of a selective thickness to allow for end play adjustments.

When rebuilding a manual transmission, it's always a good practice to replace the:

Technician A says that a benefit of helical gears is that they do not create radial or thrust loads. Technician B says that spur gears run quieter than helical gears. Who is correct?

Seals for a manual transmission are being discussed. Technician A says that many seals consist of a stamped metal case with a flexible sealing lip and an internal spring. Technician B says that a seal referred to as a Scotseal does not have a single sealing lip, but rather multiple sealing lips on the outside of the seal. Who is correct?

A _______in a groove on the outside of the manual transmission bearing can locate each bearing and shaft in the casing, which maintains the alignment of the gears and engagement hubs.

Technician A says that a manual transmission's bearings are submerged in gear fluid. Technician B says that oil seals prevent the entrance of dirt and moisture into the transmission. Who is correct?