Quiz 3 - Upper Engine/Timing Components
Payments review questions on timing components
- 1.Technician A checks camchaft wear with a micrometer. Technician B uses a dial indicator. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 2.All of the following are correct statements about camshafts except:
- A.
The camshaft rotates at twice the speed of the crankshaft
- B.
The camshaft drive gear or sprocket is twice as large as the crankshaft sprocket
- C.
For every two turns of the crankshaft, the camshaft turns once.
- D.
The exhaust and intake valves each open once during four strokes
- 3.When a camshaft is worn to the point of replacement, what else should be replaced?
- A.
Valve lifters
- B.
Timing drive components
- C.
Both A and B
- D.
Neither A nor B
- 4.Which type of lifter must have manually adjustable valves?
- A.
Hydraulic
- B.
Solid
- C.
Both A and B
- D.
Neither A nor B
- 5.When one hydraulic lifter is collapsed and causing valvetrain noise, what is the most likely cause?
- A.
One worn or dirty lifter
- B.
Low oil pressure
- C.
High oil pressure
- D.
Incorrect valve timing
- 6.When all the hydraulic lifters are collapsed and causing valvetrain noise, what is the most likely cause?
- A.
One worn or dirty lifter
- B.
Low oil pressure
- C.
High oil pressure
- D.
Incorrect valve timing
- 7.What is typically the maximum amount of warpage that is acceptable on an average cylinder head?
- A.
.001 inch
- B.
.005 inch
- C.
.010 inch
- D.
.015 inch
- 8.Multiple valve engines tend to be more efficient than engines with two valves per cylinder because they:
- A.
Allow for increased port areas
- B.
Provide more valve area
- C.
Provide less restriction to the airflow
- D.
All of the above
- 9.Technician A says worn valve stem seals can increase oil consumption. Technician B says worn valve stem seals can cause valve deposits. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 10.Technician A says that timing belts are typically stretched into place using a pry bar. Technician B says timing belts should be lubricated. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 11.Technician A says that timing chains typically are provided with splash lubrication. Technician B says timing gears should always be replaced as a set. Who is correct?
- A.
A only
- B.
B only
- C.
Both A and B
- D.
Neither A nor B
- 12.Which of the following typically would not have a timing mark?
- A.
Idler Shaft Sprocket
- B.
Camshaft Sprocket
- C.
Balance Shaft Sprocket
- D.
Crankshaft Sprocket
- 13.What type of engine damage is most likely if a timing belt or chain breaks?
- A.
Broken camshaft
- B.
Bent valves
- C.
Broken crankshaft
- D.
No damage can possible occur
- 14.What is a typical recommended timing belt change interval mileage?
- A.
20,000 to 50,000 miles
- B.
40,000 to 50,000 miles
- C.
60,000 to 100,000 miles
- D.
There is never a scheduled belt change
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