Chapter 38 Engine Installation and Break-In
Quiz by Matt Lobdell
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- Q1
Before installing or starting a new or rebuilt engine, all of the following items should have been checked, EXCEPT ________.
battery fully charged
pre-lube engine and check for proper oil pressure
rear axle is topped off
check that all of the vacuum lines are correctly installed and routed
30s - Q2
Dressing the engine" means ________.
installing all of the exterior engine components
Both B and C
cleaning the engine
changing the oil and filter
30s - Q3
If the bell housing is not properly torqued to the engine block, ________.
the engine block will crack
the rear cylinder can be distorted (become out-of-round)
the crankshaft will crack
the bell housing will distort
30s - Q4
Break-in engine oil is ________.
SAE 40
SAE 30
SAE 20W-50
of the same viscosity and grade as that specified for normal engine operation
30s - Q5
Normal operating temperature is reached when ________.
the upper radiator hose is hot and pressurized
the radiator cap releases coolant into the overflow
Both B and C
the cooling fan has cycled at least once (if the vehicle is so equipped)
30s - Q6
Which computer sensor should be replaced to help ensure that the engine will be operating at the correct air-fuel ratio?
Manifold absolute pressure sensor
Engine coolant temperature sensor
Throttle position sensor
Oxygen sensor
30s - Q7
How should the vehicle be driven to best break in a newly overhauled engine?
At idle speed and little or no load
At varying speeds and loads
At high speeds and loads
At a steady low speed
30s - Q8
In which type of vehicle is the engine most likely to be installed from underneath the vehicle?
Four wheel drive (4WD)
Rear wheel drive (RWD)
Both A and C
Front wheel drive (FWD)
30s - Q9
Engine vacuum on a normal stock rebuilt engine should be ________
10 to 15 in. Hg.
17 to 21 in. Hg.
12 to 16 in. Hg.
19 to 23 in. Hg.
30s - Q10
Why must flat-bottom lifter camshafts be broken in at a fast idle?
Neither A nor B are correct
The cam in a cam-in-block engine is only lubricated by splash oil
The flat-bottom of the lifters must become slightly concave in order to rotate
Both A and B are correct
30s - Q11
Technician A says to carefully install all accessories when installing a replacement engine. Technician B says that when installing the transmission and other components on the engine block, be sure to use a box wrench to tighten all fasteners to factory specifications. Who is right?
Technician A only
Technician B only
Neither technician
Both technicians
30s - Q12
Break-in engine oil is ________.
SAE 40
of the same viscosity and grade as that specified for normal engine operation
SAE 30
SAE 20W-50
30s - Q13
Technician A says to always adjust the clutch free play after starting the engine. Technician B says that the old clutch disc can be reused if it looks OK. Who is right?
Both technicians
Technician A only
Neither technician
Technician B only
30s - Q14
Two technicians are discussing the installation of a rebuilt engine into a vehicle. Technician A says that the radiator should be flow tested to help ensure that the engine will not overheat. Technician B says that starting fluid should be used to start the engine. Who is right?
Neither technician
Technician A only
Technician B only
Both technicians
30s - Q15
Technician A says to use SAE 30 engine oil on an engine break-in. Technician B says that it is recommended to change the engine oil and filter after 30 minutes of running time. Who is right?
Both technicians
Technician A only
Technician B only
Neither technician
30s