Lucas, I'd try a gentle persuasion with a three jaw gear puller with a piece of scrap belt in the pulleys entire circumference to avoid screwing the pulley halves up too bad. Of course use Charlies remedy to everything, send it for a swim in Aerokroil or PB Blaster (both are AWESOME for loosening stubborn parts)
Also, ive discovered simple green has amazing rust removal ability, a friend of mine and i were working on the cub a while back de-gunkifying some parts, he said eff it and sprayed it on my stubborn deck spindle nuts, after a few minutes, came loose amazingly easy! who knew?
Also, ive discovered simple green has amazing rust removal ability, a friend of mine and i were working on the cub a while back de-gunkifying some parts, he said eff it and sprayed it on my stubborn deck spindle nuts, after a few minutes, came loose amazingly easy! who knew?