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- Moreover, an engine with a compromised valve cover gasket may experience a loss of compression, resulting in decreased performance and increased fuel consumption. In severe cases, the accumulation of oil around the spark plugs can cause misfires or even engine failure, highlighting the importance of maintaining this component.
A) Shaft runout
As shown in Figure 8, shaft runout is defined as being twice the eccentricity between the shaft center and center of shaft-center rotation trajectory.Ultimately, oil seals are devices that help to exclude dust and dirt, etc., while at all times retaining the lubricant in the piece of equipment.