Bad grinding noise out of water
I have a 1990 Supra Sun sport with PCM tranny 1-1.23
It has a terrible grinding noise when I put it into gear out of the water . If the boat is in the water it will wine just a little at low rpms and then it seems to completely go away with a little throttle. The PCM tranny seems to be running great in water no slipping, leaking, the oil is changed regularly and has no discolor or burn smell to it , it has no foamy appearance or signs of water entering . I do fell a little vibration when I turn a certain direction. Anyone have any ideas on what this might be?
I also would like to add that at this point I have the Tranny out of the boat I have pulled the prop shaft, The packing nut looked complete hard and burned up and a little egged out on the back side . I dropped the shaft off at Nettles in Austin a local prop shop and they said that it the shaft looked fine it does have some ware at the location of the packing nut but nice and straight. I have removed the lower bushings and will replace them with new . I also order the dripless shat seal. This . I cannot tell where this noise has been coming from but it sounds terrible out of the water. Can anyone think of anything else I should try before I put this back together.