This section provides background information related to the present disclosure which is not necessarily prior art.
Engine assemblies may include gear drive assemblies to transfer rotation between rotary engine components. The gear assemblies may include a first gear rotationally and axially fixed to a first rotary engine component and a second gear rotationally and axially fixed to a second rotary engine component and engaged with the first gear. Clearances between the first and second gears may produce gear rattle during engine operation. The clearances may result from assembly and machining tolerances. Gear rattle may occur due to the displacement of the first and second rotary engine components relative to one another during engine operation.