Question 1

A short block includes the ________.

Accepted Answer

A short block includes the pistons, rods, rod bearings, the block itself, and the crankshaft with its main bearings.

Question 2

When removing cylinder heads, the fasteners should be removed in what order?

Accepted Answer

The correct procedure for removing cylinder heads involves loosening the fasteners in the reverse order of the tightening sequence. This helps prevent warping or damage to the cylinder head by evenly relieving the tension.

Question 3

A long block can be made from a short block with the addition of ________.

Accepted Answer

A long block engine includes the short block components plus the cylinder heads and valve train.

Question 4

What needs to be removed before the valves can be removed from the cylinder head?

Accepted Answer

The valve keepers must be removed to release the valves from the cylinder head.

Question 5

With the rocker cover (valve cover) removed, the technician can inspect all items EXCEPT ________.

Accepted Answer

The combustion chamber is not visible with the removal of the rocker (valve) cover, as it is located within the cylinder head beneath the valves and spark plug. The rocker cover only allows access to the top of the cylinder head components such as valve stems, pushrods, rocker arms, and possibly the camshaft in overhead camshaft engines.

Question 6

After the oil pan (sump) is removed, the technician should inspect ________.

Accepted Answer

After removing the oil pan (sump), it is important for the technician to inspect both the oil pump and pickup screen for any signs of wear or damage, and to ensure that all rod and main bearings are properly numbered or marked for identification. This helps in assessing the condition of these components and in facilitating reassembly or replacement. Valve lifters (tappets) are not inspected at this stage as they are not accessible with just the oil pan removed.

Question 7

The ridge at the top of the cylinder ________.

Accepted Answer

The ridge at the top of the cylinder is caused because the piston rings do not travel all the way to the top, leading to a ridge of un-worn material.

Question 8

Before the timing chain can be inspected and removed, the ________ must be removed.

Accepted Answer

The vibration damper must be removed to access the timing chain, as it is typically mounted on the crankshaft, which is connected to the timing chain.

Question 9

Before the valves are removed from the cylinder head, what operations need to be completed?

Accepted Answer

Before the valves are removed from the cylinder head, all the operations listed (A, B, and C) need to be completed. The cylinder head must be removed from the engine to access the valves. The valve locks (keepers) must be removed to release the valves, and any burrs on the stem of the valves should be removed to prevent damage during removal.

Question 10

Technician A says that a minor overhaul can often be done with the engine remaining in the vehicle.Technician B says that a core is required for most remanufactured engines. Which technician is correct?

Accepted Answer

Both statements are correct. A minor overhaul can often be performed with the engine still in the vehicle, and most remanufactured engines do require a core exchange.

Question 11

Technician A says that lifting hooks should be used when hoisting an engine. Technician B says that engine component parts should only be removed when the engine is at operating temperature. Who is right?

Accepted Answer

Technician A is correct because lifting hooks are specifically designed for safely hoisting engines, ensuring stability and preventing damage. Technician B is incorrect because removing engine components at operating temperature can be dangerous due to the heat and potential for burns or other injuries; it's safer to work on an engine once it has cooled down.

Question 12

Technician A says that the connecting rod and main bearing caps should be marked before removing to ensure that they can be reinstalled in the exact same location when re-assembled. Technician B says that the tip of the valve stem should be filed before removing valves from the cylinder head to help prevent damage to the valve guide. Who is right?

Accepted Answer

Both technicians are correct. Marking the connecting rod and main bearing caps ensures proper reassembly, while filing the valve stem tip prevents damage to the valve guide.

Question 13

Technician A says that the intake and exhaust manifolds have to be removed before removing the engine from the vehicle. Technician B says that on FWD vehicles it is often easier to remove the engine from underneath rather than remove the engine from the top of the vehicle. Who is right?

Accepted Answer

Technician B is correct because, in many front-wheel-drive (FWD) vehicles, removing the engine from underneath is indeed often easier due to the layout of the engine compartment and the positioning of the engine and transmission. Technician A's statement is not always true; whether the intake and exhaust manifolds need to be removed depends on the specific vehicle and engine design.

Question 14

Technician A says that before removing the engine, the battery should be disconnected. Technician B says to assist in reassembly, you should mark all unfamiliar hoses and wires in the engine compartment. Who is right?

Accepted Answer

Both technicians A and B are correct. Disconnecting the battery is a safety measure to prevent electrical shorts and other hazards when working on a vehicle's engine. Marking hoses and wires helps ensure they are reconnected correctly during reassembly, preventing potential issues.

Question 15

When removing the engine only from a vehicle equipped with an automatic transmission, the torque converter normally ________.

Accepted Answer

The torque converter typically stays mounted on the transmission when removing the engine from a vehicle equipped with an automatic transmission. This is because the torque converter is part of the transmission assembly and is designed to transmit the engine's power to the transmission.

Question 16

Before removing the piston and rod assembly from the cylinder block, you should do all of these, EXCEPT ________.

Accepted Answer

Notching the top of the piston for identification is not a standard procedure before removing the piston and rod assembly from the cylinder block. The other options (installing rod bolt protectors, removing the cylinder ridge with a ridge reamer, and marking the rods to their respective cylinders) are standard practices to ensure the components are protected and correctly reassembled.

Question 17

Technician A says that a minor overhaul includes performing a valve job. Technician B says that a minor overhaul includes replacing the pistons. Which technician is correct?

Accepted Answer

A minor overhaul typically includes tasks like performing a valve job, which is less extensive than replacing pistons. Replacing pistons would be considered part of a major overhaul.

Question 18

Powdered connecting rods can be marked with ________.

Accepted Answer

The answer of Powdered connecting rods can be marked with...

Question 19

Cylinder head bolts should be loosened ________.

Accepted Answer

The answer of Cylinder head bolts should be loosened ________.
...

Question 20

A valve job restores the valves and seats. This increases manifold vacuum and may cause ________.

Accepted Answer

The answer of A valve job restores the valves and...

Quiz 28: Engine Removal and Disassembly