Question 1

What are the steps involved in installing cylinder heads?

Accepted Answer

1. Be sure to install the cylinder head gaskets in the right direction.
2. Most engines have dowels to align the heads. If there are no dowels, make alignment pilots by cutting the heads off two long bolts and hack-sawing screwdriver grooves in their tops. These aligning studs will help protect the head gasket from damage during installation and can be removed easily after the head is installed.
3. Be sure to compare the head gasket to the head to see that it is the correct one. Check that the fire rings around the combustion chambers fit and that oil and coolant passageways line up.

Question 2

What are the steps involved in aligning the thrust bearing halves?

Accepted Answer

1. Torque all bearing caps except the thrust main. Its halves should be aligned before torquing. Misaligned thrust halves could eliminate end play. This is done by prying on the crankshaft while the thrust main is still loose.
2. After aligning the thrust halves, check crankshaft end play with a feeler gauge or a dial indicator.

Question 3

How would you prepare the crankshaft for installation?

Accepted Answer

1. Remove the old crankshaft sprocket and install the new one. Crank sprockets slide easily into place on some engines, but are pressed-fit on others.
2. Make certain that the woodruff key is perfectly flat in its groove in the crank. An improperly installed woodruff key can cause a cracked sprocket.
3. If the crank is already in the block, the sprocket can be heated for easier installation.
4. Install the sprocket with the timing mark facing outward. The inside edge of the sprocket has a chamfer that corresponds to the fillet on the crank; if the sprocket is backward, it cannot be installed all the way.

Question 4

Tightening down an OHC camshaft sprocket with an impact wrench can result in a broken camshaft ____________________.

Accepted Answer

The answer of Tightening down an OHC camshaft sprocket with...

Question 5

While having a discussion, Technician A says that you should always oil the bearing backs. Technician B says that they are not a bearing surface so should not be oiled. Who is correct?

Accepted Answer

A) A only 
B) B only 
C) Both A and B 
D) Neither A nor B 
A) A only 
B) B only 
C) Both A and B 
D) Neither A nor B

Question 6

Cylinder bores, core plug holes, and valve guides and stems cannot be oversize.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following statements is LEAST-Likely true?

Accepted Answer

A) When installing the crank, cleaning the recesses where the bearing lock tab will fit is often the cause of a tight crankshaft. 
B) When installing the crank, clean the main bearing bores to prevent oil clearance and heat transfer problems. 
C) It takes only a small film of dirt left from the hot tank, bake oven, or shot peening process to increase the oil clearance by 0.001" or more. 
D) Often, during an oil clearance check on a newly rebuilt engine, excessive clearance is discovered. 
A) When installing the crank, cleaning the recesses where the bearing lock tab will fit is often the cause of a tight crankshaft. 
B) When installing the crank, clean the main bearing bores to prevent oil clearance and heat transfer problems. 
C) It takes only a small film of dirt left from the hot tank, bake oven, or shot peening process to increase the oil clearance by 0.001" or more. 
D) Often, during an oil clearance check on a newly rebuilt engine, excessive clearance is discovered.

Question 8

What are the steps involved in installing connecting rod bearings?

Accepted Answer

1. Install the new bearing inserts in th

Question 9

All of the following statements are true EXCEPT:

Accepted Answer

A) if an engine failed due to an overheating problem, it is possible that the sensors for coolant temperature and the fan relay could be defective. 
B) sometimes a piston will seize in the cylinder due to an air leak in the intake manifold or a fuel system problem, resulting in too lean an air-fuel mixture. 
C) any fuel and cooling system hoses that are not in excellent condition must be replaced. 
D) if a problem is one that is not the responsibility of the rebuilder, under the terms of the warranty the rebuilder is still liable for the cost of the repair. 
A) if an engine failed due to an overheating problem, it is possible that the sensors for coolant temperature and the fan relay could be defective. 
B) sometimes a piston will seize in the cylinder due to an air leak in the intake manifold or a fuel system problem, resulting in too lean an air-fuel mixture. 
C) any fuel and cooling system hoses that are not in excellent condition must be replaced. 
D) if a problem is one that is not the responsibility of the rebuilder, under the terms of the warranty the rebuilder is still liable for the cost of the repair.

Question 10

While having a discussion, Technician A says that the Automotive Engine Rebuilders Association recommends prefilling hydraulic lifters. Technician B says that if they are underfilled, the valves can be held off their seats, which will make starting the engine difficult. Who is correct?

Accepted Answer

A) A only 
B) B only 
C) Both A and B 
D) Neither A nor B 
A) A only 
B) B only 
C) Both A and B 
D) Neither A nor B

Question 11

The parts that are LEAST-Likely to be found in an engine "master kit" are:

Accepted Answer

A) pistons 
B) rings 
C) plenums 
D) reground crank and bearings 
A) pistons 
B) rings 
C) plenums 
D) reground crank and bearings

Question 12

Some rebuilt engines have warranties that expire in as little as 90 days or 4,000 miles.

Accepted Answer

A) True 
 B)False

Question 13

All of the following statements are true EXCEPT:

Accepted Answer

A) once an engine is assembled, the only way for dirt to get in is past the air cleaner, so cleanliness during assembly is a must. 
B) if a bolt cannot be turned into a hole by finger pressure only, something is wrong. 
C) it is okay to force threads together with hand tools or an impact wrench. 
D) finger-start all bolts that fasten a particular part before proceeding to torque any of them down. 
A) once an engine is assembled, the only way for dirt to get in is past the air cleaner, so cleanliness during assembly is a must. 
B) if a bolt cannot be turned into a hole by finger pressure only, something is wrong. 
C) it is okay to force threads together with hand tools or an impact wrench. 
D) finger-start all bolts that fasten a particular part before proceeding to torque any of them down.

Question 14

How would you check the installation of the rod and bearings?

Accepted Answer

1. After installing each piston, rotate

Question 15

The kit that will MOST-Likely include gaskets, piston rings, crankshaft bearings, and sometimes, a timing set, is the:

Accepted Answer

A) crankshaft kit 
B) timing chain set 
C) master kit 
D) overhaul kit 
A) crankshaft kit 
B) timing chain set 
C) master kit 
D) overhaul kit

Question 16

High-volume engine rebuilders use a run-in stand to ____________________ rebuilt engines following assembly.

Accepted Answer

The answer of High-volume engine rebuilders use a run-in stand...

Question 17

Short blocks are completely assembled rebuilt blocks purchased from automotive machine shops and engine rebuilding companies.

Accepted Answer

A) True 
 B)False

Question 18

Long blocks are tested in run-in stands or spin testers so more problems can be spotted before installation.

Accepted Answer

A) True 
 B)False

Question 19

____________________ is a broad term that refers to parts that are sold by the non-OE market.

Accepted Answer

The answer of ____________________ is a broad term that refers...

Question 20

During assembly of pushrod V-type engines, it is best to adjust ____________________ preload before the intake manifold is installed because you will be able to see that the lifters are on the heel of the cam lobes and are positioned low in their bores.

Accepted Answer

The answer of During assembly of pushrod V-type engines, it...

Exam 55: Ordering Parts, Short and Long Blocks, Engine Assembly

What are the steps involved in installing cylinder heads?

What are the steps involved in aligning the thrust bearing halves?

How would you prepare the crankshaft for installation?

Tightening down an OHC camshaft sprocket with an impact wrench can result in a broken camshaft ____________________.

While having a discussion, Technician A says that you should always oil the bearing backs. Technician B says that they are not a bearing surface so should not be oiled. Who is correct?

Cylinder bores, core plug holes, and valve guides and stems cannot be oversize.

Which of the following statements is LEAST-Likely true?

What are the steps involved in installing connecting rod bearings?

All of the following statements are true EXCEPT:

While having a discussion, Technician A says that the Automotive Engine Rebuilders Association recommends prefilling hydraulic lifters. Technician B says that if they are underfilled, the valves can be held off their seats, which will make starting the engine difficult. Who is correct?

The parts that are LEAST-Likely to be found in an engine "master kit" are:

Some rebuilt engines have warranties that expire in as little as 90 days or 4,000 miles.

All of the following statements are true EXCEPT:

How would you check the installation of the rod and bearings?

The kit that will MOST-Likely include gaskets, piston rings, crankshaft bearings, and sometimes, a timing set, is the:

High-volume engine rebuilders use a run-in stand to ____________________ rebuilt engines following assembly.

Short blocks are completely assembled rebuilt blocks purchased from automotive machine shops and engine rebuilding companies.

Long blocks are tested in run-in stands or spin testers so more problems can be spotted before installation.

____________________ is a broad term that refers to parts that are sold by the non-OE market.

During assembly of pushrod V-type engines, it is best to adjust ____________________ preload before the intake manifold is installed because you will be able to see that the lifters are on the heel of the cam lobes and are positioned low in their bores.

Introduction to the Automobile

Automotive Careers and Technician Certification

Shop Safety

Shop Management, Service Records, and Parts

Locating Service Information and Specifications

Measuring Tools and Systems

Hardware, Fasteners, Drills, and Thread Repair

Shop Tools

General Shop Equipment

Cleaning Equipment and Methods

Lifting Equipment and Air Compressors

Engine Lubrication

Underhood and Body Inspection Vehicle on Ground

Undercar Inspection and Service

Introduction to the Engine

Engine Classifications and Types

Engine Size and Measurements

Engine Upper End

Engine Lower End and Lubrication System Theory

Cooling System Theory

Cooling System Service

Automotive Belts

Automotive Hoses

Automotive Plumbing: Tubing and Pipe

Basic Electrical System Theory and Repairs

Battery Fundamentals

Battery Service

Starting System Fundamentals

Starting System Service

Charging System Fundamentals

Charging System Service

Lighting and Wiring Fundamentals

Lighting and Wiring Service

Safety, Security, Comfort Systems, and Electrical Accessories

Heating and Air-Conditioning Fundamentals

Heating and Air-Conditioning Service

Ignition System Fundamentals

Ignition System Service

Petroleum Fuels and Alternative Fuel Technologies

Fuel System Fundamentals, Gasoline and Diesel

Fuel System Service

Intake and Exhaust Systemsturbochargers and Superchargers

Emission Control System Fundamentals, Gasoline and Diesel

Emission Control System Service

Electronics and Computer Systems Fundamentals

Electronics and Computer Systems Service

Advanced Emission and On-Board Diagnostics Obd

Diagnosing Engine Performance Problems

Diagnosing Engine Mechanical Problems

Engine Removal and Disassembly

Engine Sealing Gaskets, Fastener Torque

Engine Diagnosis and Service: Cylinder Head and Valve Train

Engine Diagnosis and Service: Block, Crankshaft, Bearings, and Lubrication System

Engine Diagnosis and Service: Piston, Piston Rings, Connecting Rod, Engine Balancing

Engine Installation, Break-In, and In-Chassis Repairs

Brake Fundamentals

Brake Service

Antilock Brakes, Traction, and Stability Control

Bearings, Seals, and Greases