Why does a low speed engine have a small oil pump?
Why does a low speed engine have a small oil pump? This is why low-speed engines have relatively large journals, with only modest pump size and pressure. Low pressure indicates that leakage from the bearings is higher than the pump's delivery rate. What happens if the oil level is too low on a hydraulic pump? As mentioned previously, if the oil level is too low, oil can enter the suction line and flow into the pump. Therefore, always check the oil level with all cylinders in the retracted position. If a new pump is installed and pressure will not build,...