Valve stem seals help prevent oil from leaking into the combustion chamber through the valve guides. They also help control the lubrication of the valve stems and guide them properly within the cylinder head.
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Valve stem height is typically measured using a micrometer or a caliper. The measurement is taken from the valve spring seat to the tip of the valve stem. This measurement helps ensure proper valve function and clearance within the engine.
The main function of a bark in a woody stem includes an outer protective layer and an inner layer of living phloem which transports food through the stem
To replace damaged tissue
Stem cells in glands and epithelium of the skin play a vital role in regeneration and maintenance of these tissues. They have the ability to differentiate into different cell types within the gland or epithelium, helping in repair and renewal processes. Stem cells also contribute to the overall homeostasis and function of these tissues.
replacing damaged cells