"I have a 2002 5.7 with B1 dri
"I have a 2002 5.7 with B1 drive. Total hours 165. Bought the boat last year and toward the end of the season noticed that when running at idle in neutral there is a random knocking noise eminating from the engine coupler/top of drive area. I do know that the boat was driven in shallow water with the drive up, sometimes up far enough to have it in "trailer" mode. I also have read that this is not a good practice at all. At any rate, the noise is less pronounced when in drive. What is the easiest way to assess what needs to be replaced. My guess is the universals and potentially the coupler have been damaged? Gimbal??"
"I have a 2002 5.7 with B1 drive. Total hours 165. Bought the boat last year and toward the end of the season noticed that when running at idle in neutral there is a random knocking noise eminating from the engine coupler/top of drive area. I do know that the boat was driven in shallow water with the drive up, sometimes up far enough to have it in "trailer" mode. I also have read that this is not a good practice at all. At any rate, the noise is less pronounced when in drive. What is the easiest way to assess what needs to be replaced. My guess is the universals and potentially the coupler have been damaged? Gimbal??"