AUTO TECH/TASK SHEET
6th Edition
ISBN: 9780135257630
Author: Halderman
Publisher: PEARSON
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Textbook Question
Chapter 32, Problem 1RQ
How is the camshaft driven by the crankshaft?
Expert Solution & Answer
To determine
Identify how the camshaft is driven by the crankshaft.
Explanation of Solution
In an engine, the opening and closing of the valves are timed and the actuating mechanism for the fuel pumps and injectors are controlled by the camshaft. The camshaft is driven by the crankshaft through a belt or chain drive. In a four stroke engine, the speed of the camshaft is half of the crankshaft and for a two stroke engine; the speed is the same for both.
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Students have asked these similar questions
Tech a says that the push on the piston top during the power stroke is transferred to the crank shaft through the connecting rod. Tech b states that the power is transferred from the piston through the valve train to the camshaft. Who is correct?
(A)What are the fuctions of engine camshaft and cranck shaft.
Discuss the main advantages and disadvantages of at least 2 drive systems that can be used to drive a camshaft ?
Chapter 32 Solutions
AUTO TECH/TASK SHEET
Ch. 32 - How is the camshaft driven by the crankshaft?Ch. 32 - What drives the high-pressure fuel pump on a GDI...Ch. 32 - What is meant by an interference engine?Ch. 32 - How does variable valve timing help improve engine...Ch. 32 - The camshaft makes __________ for every revolution...Ch. 32 - A DOHC V-6 has how many camshafts? a. 4 b. 2 c. 3...Ch. 32 - Which timing chain type is also called a silent...Ch. 32 - Many technicians always use new pushrods because...Ch. 32 - Hydraulic valve lifters can make a ticking noise...Ch. 32 - Hydraulic lifters or hydraulic lash adjusters...
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- Question 8 An engine makes 259HP at redline, and 280 ft-lbs of torque at 4500 RPM. The 4cylinder Boxer engine has a bore of 99.5mm and a stroke of 79mm. Calculate the amount of HP this makes at its peak torque. Your Answer: Answer Question 9 A crankshaft has a 52mm throw for the connecting rod, how long is the stroke of this engine? Your Answer:arrow_forward1.) 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.arrow_forwardQ1- Explain the duties of camshaft, distributor and alternator, which are among the engine partsarrow_forward
- True or False? The camshaft is always located in the engine block.arrow_forward6. A four stroke 4L Spark Ignition V8 engine runs at 4000 rpm. The compression ratio is 10. The engine is square with bore equals to stroke. Determine the following a. Cylinder bore and stroke b. Average piston speed c. Clearance volume per cylinderarrow_forwardHow many degrees of crankshaft travel until the intake valve open after ignition? (in degrees)arrow_forward
- List six checks that should be carried out when inspecting camshaftsarrow_forwardHow many degrees of crankshaft travel until the exhaust valve open after ignition? (in degrees)arrow_forward4. Why do multi-cylinder engines have smaller flywheels than single-cylinder engines? 5. What systems are commonly seen on an engine? What additional systems are needed to use an engine as a tractor? 6. Why does a cam shaft run at half the speed of the crankshaft? Illustrate.arrow_forward
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