AUT 102 Chapter 22 Test Week 10

The ________ piston pin is a slide-fit in both the piston and the connecting rod bore.

• Snap

• Press-fit

• Semi-floating

• Full-floating

The crankshaft should be prepared by __________.

• Cleaning it

• Drying it

• Spraying a rust inhibitor over it

• All of the above

If the oil ring is the ________ version, then only the end gap of the side rails are measured.

• One piece

• Two piece

• Three piece

• Four piece

Technician A says a common undersize main bearing is 0.010" (0.25 mm). Technician B says that grease may need to be applied to the back side of some thrust bearings to hold them in place during assembly. Who is correct?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B

Technician A says always check thrust bearing end play, as this controls crankshaft end play. Technician B says the main bearing clearance must meet the manufacturer's specifications and can be measured using an outside micrometer. Who is correct?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B

Technician A says that main bearing clearance can be calculated by knowing the inner diameter of the main bearing and the outer diameter of the main journal. Technician B says that rod bearing and main bearing clearance can be measured with Plastigauge. Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A nor B

When installing the crankshaft, to prevent oil leak from the rear of the block:

• paint the surface in a double coat.

• use a dab of silicone sealer

• use plugs to close any openings.

• temporarily solder together the parts in the rear of the block.

When installing oil gallery plugs, Technician A says to install the plugs without sealer, metal to metal. Technician B says to put lock tight compound on the male threads and insert the plug. Who is correct?

• Technician A

• Technician B

• Both A and B

• Neither A nor B

Technician A says that the head gasket is designed to seal between the head and the block. Technician B says that most head gaskets require that you coat them with special sealers before installation. Who is correct?

• Tech A

• Tech B

• Both Tech A and B

• Neither Tech A or B

A liberal amount of bearing assembly lube should be placed on both halves of the ________ bearing inserts and the journal on the crankshaft.

• Cylinder head

• Piston ring

• Head gasket

• Connecting rod