Wv 30d honda water pump

The first step is to check whether or not the pump housing is filled with water. If not, fill it, and see if that solves the problem. If that doesn't work, check if the static suction head is too high. Lower it closer to the water and try again The pump can handle solids up to 2.4 inches, and because it can run without water, the pump is ideally suited for areas like industrial locations, agricultural plots, construction sites, and other locales where sludge and sediment are a primary concern. n fact, the 4-inch water pump means that the inlet and outlet diameter of the diesel engine pump is 4 inches (inner diameter 100mm), and the 6-inch water pump means that the inlet and outlet diameter of the diesel engine pump is 6 inches (inner diameter 150mm).