A pump 204 for pumping oil out of a flywheel housing is disclosed. The pump comprises a ring gear 206 attached to the flywheel 202 and pump body 214. The body at least partially encloses the ring gear and has first 310 and second 312 ends and a fluid inlet 314 and outlet 318. The centrifugal force caused by the rotation of the flywheel causes air to escape from between the teeth 210 and the first end 310 limits entry of additional air into the pump body, forming a low pressure zone. The partial vacuum formed results in a flow of fluid from the bottom of the housing to the interior of the pump body and then on to the outlet. The pump allows the flywheel housing to be drained of leaked oil, even if it is lower than the main sump of an engine. Draining the housing prevents leaked oil from interfering with the rotating components. A method of pumping oil from a flywheel housing or sump is also disclosed.
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