Hoping somebody may be able to answer my questions regarding a Dennis z type (1947). When the engine is running and both clutches are out of gear the cutting cylinder still likes to turn and I have noticed the centre of the clutch is turning slowly. Should this be happening and if not can it be adjusted or is this terminal wear and in need of replacement? Also when the engine is not running and I push the mower around it 'growls' as it's moving along. Is this normal (and just bad tempered) or is something amiss?