Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
6th Edition
ISBN: 9780135257272
Author: James D. Halderman
Publisher: PEARSON
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Textbook Question
Chapter 31, Problem 1CQ
In a normally operating engine, intake and exhaust valves are opened by a cam and closed by the _______.
- a. rocker arms or cam follower
- b. valve spring
- c. lifters (tappets)
- d. valve guide and/or pushrod
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A
engine develops power output for each two engine revolution. *
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It is the difference in expansion amounts between the cylinder head and pushrod
that effectively increases the space between the valve stem and the rocker's
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On a four-stroke cycle reciprocating engine, which strokes are both valves
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Intake
Power
Ignition
Compression
Exhaust
It represents the net power output of the engine at the crankshaft. *
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If the fuel/air ratio is proper and ignition timing is correct, the combustion
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Your answer
1.) The valve timing is affected by (1) timing of the crankshaft and camshaft gears, (2) shape of the cam, and (3) tappet or rocker arm clearance. Simply discuss how each of the mentioned factors affects the timing of the valve.
2.) What is fuel combustion? How does it affect the performance of an engine?
3.) What is the power train of the wheel drive tractor? Discuss how power is transmitted from the engine to the wheels of the tractor.
Explain briefly
1. Valve lead
2. Intake lead
3. Exhaust lead
Chapter 31 Solutions
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
Ch. 31 - What is the procedure for grinding valves?Ch. 31 - When is the valve tip ground? How do you know how...Ch. 31 - What is an interference angle between the valve...Ch. 31 - How is a valve seat insert installed?Ch. 31 - How are the correct valve spring inserts (shims)...Ch. 31 - In a normally operating engine, intake and exhaust...Ch. 31 - Which of the following statements is true about...Ch. 31 - Prob. 3CQCh. 31 - A valve should be discarded if the margin is less...Ch. 31 - To lower and narrow a valve seat that has been cut...
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