rocketboy52
Cadet
- Joined
- Mar 21, 2006
- Messages
- 26
I have a Winner Viscount with a Mercruiser 888 Pre alpha stern drive with a 302 ford motor. I have been working on overhauling this cool boat, and a bad water leak caused me to haul out the motor. Once I hauled out the motor, I found that my Y pipe was cracked and my transom plate was snapped in two.
Everyone that responded in a previous posting told me I needed to check the transom, so I drilled a few holes and found that my transom in certain areas is indeed dark like coffee grounds color, even though the transom looks, sounds, and feels solid.
Im looking at rebuilding the transom with seaCast, but in this boat, Im not sure how far I should go to replace all wood. The transom wood is not Sandwiched, meaning it doesnt have an inner glass skin, but rather is Glass Wood Paint from the outside in. If you look at the attached pictures the Green area is the thickest part of the transom, and actually has a second ply of wood laminated in this area to get the needed thickness for the stern drive unit (2 thick) I drilled multiple test holes to see where the wood was dark and the only areas that were dark were holes n the Green area (holes A, B, and C) The holes I drilled at D, E and F looked like clean new wood. My question is should I just replace the thickest part of the transom (green highlight) with a SeaCAST transom, or do I need to cut into the sealed bunks and rip out all wood (Red out line) to do this project right?
I want to fix this prject right, but I also dont want to go overboard wasting time and money if it is over kill. Those who have replaced transoms before what are your opinions? What would you do? How do you prevent transom rot in new boats? Thanks in advance.

Everyone that responded in a previous posting told me I needed to check the transom, so I drilled a few holes and found that my transom in certain areas is indeed dark like coffee grounds color, even though the transom looks, sounds, and feels solid.
Im looking at rebuilding the transom with seaCast, but in this boat, Im not sure how far I should go to replace all wood. The transom wood is not Sandwiched, meaning it doesnt have an inner glass skin, but rather is Glass Wood Paint from the outside in. If you look at the attached pictures the Green area is the thickest part of the transom, and actually has a second ply of wood laminated in this area to get the needed thickness for the stern drive unit (2 thick) I drilled multiple test holes to see where the wood was dark and the only areas that were dark were holes n the Green area (holes A, B, and C) The holes I drilled at D, E and F looked like clean new wood. My question is should I just replace the thickest part of the transom (green highlight) with a SeaCAST transom, or do I need to cut into the sealed bunks and rip out all wood (Red out line) to do this project right?
I want to fix this prject right, but I also dont want to go overboard wasting time and money if it is over kill. Those who have replaced transoms before what are your opinions? What would you do? How do you prevent transom rot in new boats? Thanks in advance.