Exam 34: Engine Blocks

Technician A says that engine blocks are either cast iron or aluminum. Technician B says that cores are used inside a mold to form water jackets and cylinder bores. Who is right?

Ultrasonic testing is used to test ________.

The surface finish for the cylinder walls usually depends on ________.

Core plugs are also called ________.

When measuring a cylinder for wear, the most wear will be found at the ________.

When preparing an engine to use cast-iron piston rings the cylinders must be honed to a surface finish of ________ microinches.

After the engine block has been machined, it should be cleaned using ________.

Which of the following methods is most accurate for checking engine block identification?

Technician A says that the block deck is the surface to which the cylinder head attaches and can be slightly concave-shaped. Technician B says that core plugs are used to fill the holes in the block used for casting. Who is right?

A cylinder has been measured as having 0.005" of taper. What is the calculated oversize piston size?

Engine blocks can be manufactured using which of these methods?

A bedplate is located between the ________ and the ________.

Cast iron has about how much carbon content?

After honing or deglazing, cylinder walls should be washed with ________.

Grit or abrasives that remain after honing the cylinders can be removed by cleaning with ________ before assembling the engine.

What should be installed and torqued to factory specifications before machining a block?

Technician A says that the cylinders should be bored and/or honed to match the size of the pistons to be used. Technician B says that bolt holes should be chamfered and cleaned with a thread chaser before assembly. Who is right?

The block deck is the ________.

The coolant passages around the cylinders are often called ________.

Cast-iron cylinder sleeves are either cast into the aluminum block during manufacturing or pressed into the aluminum block. These sleeves are not in contact with the coolant passages and are called ________.