ASE A1 Engine Repair PT2

Technician A says that a vacuum gauge and pressure gauge can both be used to determine if an exhaust system is restricted. Technician B says the cause of an exhaust system restriction could be a dent in an exhaust pipe, a collapsed exhaust pipe or a clogged catalytic converter. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

Technician A says if the camshaft bores are more than 0.0015-in. (0.0381mm) out-of-round, they should be align bored or align honed. Technician B says that the block needs to be align bored or honed if bore alignment is not within 0.0015-in. (0.0381mm). Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

Technician A says that cooling system diagnosis may require the use of a scan tool. Technician B says that some engines utilize a heated thermostat element. Who is correct?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

The diameter of the piston below is measured from point:

• A. 'A' to 'A'

• B. 'B' to 'B'

• C. 'C' to 'C'

• D. 'D' to 'D'

With the tester shown below adjusted to 1.6-in., a technician checked the valve springs from a 4-cylinder engine with the following results: 1. 78 lbs. 2. 76 lbs. 3. 75 lbs. 4. 77 lbs. 5. 70 lbs. 6. 73 lbs. 7. 76 lbs. 8. 76 lbs. If the valve closed specification for new springs is 80 lbs. @ 1.6-in., what should the technician do?

• Reuse all the springs.

• Replace only the spring with 70 lbs.

• Replace all the springs below 75 lbs.

• Replace all the springs.

What action should be taken regarding the springs?

• Replace springs 5 and 6.

• Replace spring 5

• Replace all of the springs.

• Not replace any springs

Technician A says if only the upper front main bearing is worn, a belt adjusted too tight is indicated. Technician B says when an engine with a knock is disassembled, the connecting rod bearing(s) closest to the oil pump will show the most wear. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

Technician A says that a flat-tappet hydraulic lifter rotates during operation. Technician B says the face of the lifter should be convex. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

Technician A says that main bearing oil clearance can be checked with Plastigage™. Technician B says that main bearing oil clearance can be checked with a dial bore gauge. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B

Technician A says that before installing an oil pump, it should be primed with clean engine oil. Technician B says that before installing an oil pump, the position of the pickup screen should be checked to make sure it fits closely to the bottom of the oil pan. Who is right?

• Technician A only

• Technician B only

• Both A and B

• Neither A or B