Ray,
If you are referring to the water inlet covers that are plastic, I remove them once or twice a year and make sure they are clean and clear. I have never painted the inside of it. It is still the original blue and after a few years in the water, I only had one little growth on the inside ever and I was able to pop it right out.
One thing that I do all the time is to flush the engine after each use with "Salt-Away". I have no personal interest in the company, but it desolves salt deposits and I believe does a good job. I tore apart my old engine and had to rebuild the and replace many parts supporting the water cooling jacket since it had never been flushed by the previous owner. During the process someone on this board introduced me to the product and I used it to break down the salt on the interior that I could not get to and it worked based on the discharge.
Not only do i use it after each trip, but I also run the engine in a water tank at the end of the season when I am winterizing it and put the product in the tank and let the engine run to open up the thermostats to let it flow through.
Walt
If you are referring to the water inlet covers that are plastic, I remove them once or twice a year and make sure they are clean and clear. I have never painted the inside of it. It is still the original blue and after a few years in the water, I only had one little growth on the inside ever and I was able to pop it right out.
One thing that I do all the time is to flush the engine after each use with "Salt-Away". I have no personal interest in the company, but it desolves salt deposits and I believe does a good job. I tore apart my old engine and had to rebuild the and replace many parts supporting the water cooling jacket since it had never been flushed by the previous owner. During the process someone on this board introduced me to the product and I used it to break down the salt on the interior that I could not get to and it worked based on the discharge.
Not only do i use it after each trip, but I also run the engine in a water tank at the end of the season when I am winterizing it and put the product in the tank and let the engine run to open up the thermostats to let it flow through.
Walt