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

Question 1

A(n) ____________________ is one where a customer's engine is rebuilt for use in the same vehicle from which it was removed.

Answer 1

custom engine rebuild

Question 2

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

Answer 2

snout

Question 3

Which of the following statements is LEAST-Likely true?

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.

Answer 3

A

Question 4

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

Question 5

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

Question 6

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

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

Question 7

The kit that will MOST-Likely include a reground crankshaft and bearings is the:

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

Question 8

A(n) ____ includes the chain and sprockets as well as chain guides and a tensioner for overhead cam (OHC) engines.

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

Question 9

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?

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

Question 10

End play tolerance is usually from ____ for a crankshaft with a 2" to 2-3/4" main bearing diameter.

A)0.002" to 0.004"
B)0.004" to 0.006"
C)0.006" to 0.008"
D)0.008" to 0.010"

Question 11

The machinist is paid to clean the crankshaft after grinding.

Question 12

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

Question 13

All of the following statements are true EXCEPT:

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 14

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?

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

Question 15

All of the following statements are true EXCEPT:

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 16

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

Question 17

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

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

Question 18

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

Question 19

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

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.

Question 21

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

Question 22

How would you prepare the crankshaft for installation?

Question 23

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

Question 24

What are the steps involved in installing connecting rod bearings?

Question 25

What are the steps involved in installing cylinder heads?