I recently purchased a Kubota 6100e about 3 weeks ago from a friend. When i first got it i knew the clutch wasn't releasing 100% of the time and it was also making a chattering noise when letting the clutch out. I took the whole thing apart and replaced the throw out bearing and also the rear main seal on the motor. (the clutch had a lot of oil on it when taking it apart). After reassembling, the same issue is happening. Any thoughts or suggestions?