Automotive Technology
7th Edition
ISBN: 9781337794213
Author: ERJAVEC, Jack.
Publisher: Cengage,
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Textbook Question
Chapter 12, Problem 9ASRQ
While servicing a pair of aluminum cylinder heads: Technician A says it' needed, both heads must be machined equally and the same amount of material removed from each. Technician B replaces both heads if the warpage exceeds the specified allowable amount Who is correct?
- Technician A
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Chapter 12 Solutions
Automotive Technology
Ch. 12 - Explain staged and continuously variable value...Ch. 12 - Prob. 2SACh. 12 - Define valve margin.Ch. 12 - What usually causes warpage in an aluminum cylin...Ch. 12 - What are the two ways pushrods can be checked for...Ch. 12 - True False? Fiats MultiAir system relies on...Ch. 12 - True False? Camshaft straightness is checked using...Ch. 12 - Which of the following is not true of knurling? It...Ch. 12 - To allow the engine to run on the Atkinson cycle,...Ch. 12 - To ensure proper seating of the valve, the valve...
Ch. 12 - Many engines with WT have a phaser mounted to the...Ch. 12 - Multiple valve engines tend to be more efficient...Ch. 12 - Which of the following is not a type of valve...Ch. 12 - What type of valve lifter automatically...Ch. 12 - Prob. 8MCCh. 12 - While discussing the reasons for resurfacing a...Ch. 12 - While inspecting the timing gears of an engine:...Ch. 12 - Technician A says that positive valve stem seals...Ch. 12 - Prob. 4ASRQCh. 12 - Technician A says an engine may use one or more...Ch. 12 - Technician A says it is not necessary to measure...Ch. 12 - While discussing the Valvetronic system:...Ch. 12 - While checking a hydraulic phaser after the...Ch. 12 - While servicing a pair of aluminum cylinder heads:...Ch. 12 - While discussing camshafts Technician A says valve...
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- When machining brake drums: Technician A tries to remove only enough metal to obtain a true, smooth surface. Technician B cuts the drum on the other side of the axle to the same diameter as the one that was cut first. Who is correct? Technician A only Technician B only Both A and B Neither A nor Barrow_forwardWhen removing the piston and rod assemblies from a cylinder block; Technician A positions the throw of the crankshaft at the top of its stroke and removes the connecting rod nuts and cap. Technician B covers the rod bolts with protectors and pushes the piston and rod assembly out with the wooden hammer handle or wooden drift and supports the piston as it comes out of the cylinder. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forwardWhich of the following statements about items that are press fit is NOT true? Group of answer choices The press fit allows slight motion between the parts and therefore prevents wear Many precision gears and bearings have a slight interference fit when installed on a shaft or housing The removal of gears and bearings that are press fit must be done carefully to avoid breaking or binding the parts A puller with the proper jaws and adapters should be used when applying force to remove press-fit partsarrow_forward
- Describe the proper procedure to seal a puncture in a tire.arrow_forwardWhile discussing thread sealants and lubricants: Technician A says that antiseize compound is used where a bolt might become difficult to remove after a period of time. Technician B says that thread sealants are used on bolts that are tightened into an oil cavity or coolant passage. Who is correct? Technician A Technician B Both A and B Neither A nor Barrow_forward6 During drilling operation, work piece must be held in vice. Select one: True Falsearrow_forward
- What type of simple machine is a wheelbarrow? lever inclined plane wedge screwarrow_forwardIf the service information does not provide a loosening sequence for the cylinder head bolts, what should you do?arrow_forwardTechnician A tests brake drums for out-of-round using a dial indicator. Technician B measures the drum diameter in several places to check for out-of-round. Who is correct?arrow_forward
- What usually causes warpage in an aluminum cylin der head?arrow_forwardMultiple choice Which wheelbarrow shown is well designedarrow_forwardWhich of the following is the most common method of snug tightening bolts? O Heat tightening O Tension Control Bolting O Angle Tightening (Turn of Nut) O Direct Tension Indicatorsarrow_forward
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