If your engine got covered in salt water then I might suggest rinsing it off, as the salt that gets left behind as the water evaporates can cause an assortment of problems for a long time. On the other hand, if you didn't swamp the boat then I would not recommend rinsing down the engine just "because". If you ended up getting water in the distributor it will cause you problems, most likely the next time you went to start the boat. Likewise, electronics, electric motors, etc. may not take well to getting wet.
|