G'day everyone , hope someone can help . I am trying to remove the primary chain case on my MK3 matadoor . I cant seem to get it past the gear shaft ;The first part comes easy but at about 5/16" from the end of the shaft it gets stuck. I have hit it with a rubber mallet , used a heat gun but it will not come any further . Is there a trick to this ? Any suggestions would be appreciated.p