OCR Text |
Show Guarding Against Oil Lag Quite Important It Isn't necessary to be an engineer engi-neer to understand what is meant by "lag of oil pressure," even though it does sound technical. It is obvious that the pressure of the oil circulating circulat-ing in an engine should be in proportion propor-tion to the needs of the bearings and other vital points requiring uufalllng lubrication. When this oil pressure is not high enough for engine speed it Is said to "lag." The amount of lag is Increased by unskillful driving. Since oil pressure is regulated by engine speed, a driver has only to accelerate too rapidly or to force' his engine suddenly to start the pressure lagging. This may pave the way for trouble. The best rule is to accelerate a little, then cut down engine speed and then accelerate again. This gives oil pressure a moment to catch up with engine demands. If acceleration accelera-tion is reasonably progressive the ; amount of lag will never be enough to cause trouble. J |