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The purpose of the valve spring is to close the valve when the cam has finished pushing it open to allow fuel/air in or exhaust gases out.

The spring is held in place at the top of the valve by a split-collet, like 2 halves of a cone, and also sits against the outside of the cylinder head.

The spring is compressed when the cam on the cam shaft pushes it down, and as the cam moves away, the spring forces the valve shut again.

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โˆ™ 2012-05-01 19:02:08
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Q: What is the purpose of the valve spring?
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Related questions

What is the purpose of a valve spring in an engine?

The purpose of the valve spring is to maintain contact between the components in the valve train, so the valve motion will follow the cam profile.


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It helps the valve close after it has been opend


What is the purpose of the valve in an engine?

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What is the purpose of a valve spring in a petrol engine?

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If only one spring were used on each valve, the valve would surge and bounce because of the natural vibration frequency of the spring.


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