chevymaher wrote:
Oldav8tor wrote:
For example, would anyone recommend sealing around the transom plate on the outside with 3m 4200 or another sealant?
No replace the seal. It is just a foam piece. It looses its elasticity and stays flat. If you use 4200 you got a slow leak feeding open wood. Not what you want.
Transom seals are advised to be replaced every 5 years. Nobody does they leak boats rot. You know the story.
The real issue here, is that the boat builders were too lazy to simply seal up the outdrive cut out & holes with resin, preferably epoxy resin. No one in there right mind, would be pulling the engine, outdrive and transom mount every 5 years to replace that seal!
BTW, here in salt water, one difference between salt and fresh is that we see less of that here because salt water does not rot wood like freshwater does. It corrodes manifolds and elbows and just about anything else but most wood rot here is caused by rain water, not salt water.
The bacteria that rots wood has a hard time living in salt water.