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10 Cards in this Set
- Front
- Back
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The cause of parasitic loss in an engine: |
Friction |
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To manually perform a cylinder power balance test, one should: |
unplug individual fuel injectors. |
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Whirring noise is likely to be from external accessories such as: |
alternators, water pumps, and belt tensioners. |
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The component that is responsible for opening the valves at the right time is called the: |
camshaft. |
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The amount of slack between the rocker arm or cam follower and the valve stem, or the cam and the lifter if it is a bucket-style OHC engine: |
Valve clearance. |
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OHC engine stands for: |
Over Head Cam |
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In variable valve timing engines, the cam phaser is controlled by: |
the power train control module. |
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Technician A says that in a performance engine, large valve overlap and lift increase high-end rpm. Technician B says that low-end power is sacrificed as a result of large valve overlap. Who is correct? |
Both Tech A and B. |
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Technician A says that one job of the piston rings is to prevent blow-by. Technician B says that oil control piston rings help to allow oil into the combustion chamber to mix with the air–fuel mixture. Who is correct? |
Tech A |
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Technician A says that parasitic loss in an engine is caused by low fuel volatility. Technician B says that parasitic loss is caused by internal component friction. Who is correct? |
Tech B |
