Morgo Pre-Unit Rotary Oil Pump.

The Morgo Super Rotary pump is capable of delivering approximately twice the oil of a standard plunger pump even when the oil is very hot.  A rotary pump will still pump oil adequately when the oil is in a very contaminated condition, and the pump is very worn. Normally the contamination in the oil would hold open the ball valves in the plunger type pumps and stop the pump working at pressure, scavenge, or both. Resulting in either no oil pressure or the crank case full of oil. No number of extra ball valves can eliminate this possibility.