- Oct 18, 2008
- 949
- Boat Info
- 1989 340 EC
- Engines
- 7.4LX2 Hurth 630A Drives
6.5Kw QS Genny
Today while sanding down bottom paint I found an unusual open area around the A/C thru hull fitting. After prodding with a flat tip screwdriver I was able to remove the bottom paint, a small amount of gel coat (which was cracked up) and what appears to me to be about 1 layer for fiberglass, there is one area that is a little deeper. This is my plan, see what you guys think.
Remove the thru hull fitting and get a better look at the damage. If it's not any worse than it looks now flare back the area with a grinder wheel to get a good area to repair glass. I have MAS epoxy resin from other repairs, I plan on using it to lay up a new area around the fitting hole. I may have to repair the entire area and then redrill thru hull hole.
I have interlux Watertite I had planned to cover another spot where the gelcoat had chipped under the bottom paint (about a 3/4" circle). I would use this to seal the fiberglass and sand smooth with the gelcoat. I don't care how it looks because it will be under bottom paint.
Next year I had plans to remove bottom paint and barrier coat the bottom anyhow.
I have searched all over this site and the internet in general and found nothing similar, just transom rot and gelcoat cracks.
Another question, has anyone removed this style thru hull? I don't see screws(unless they are under paint) on the outer portion. Do I remove the 2 screws from the inside and turn the inner portion and then pull the lower straight down?
Remove the thru hull fitting and get a better look at the damage. If it's not any worse than it looks now flare back the area with a grinder wheel to get a good area to repair glass. I have MAS epoxy resin from other repairs, I plan on using it to lay up a new area around the fitting hole. I may have to repair the entire area and then redrill thru hull hole.
I have interlux Watertite I had planned to cover another spot where the gelcoat had chipped under the bottom paint (about a 3/4" circle). I would use this to seal the fiberglass and sand smooth with the gelcoat. I don't care how it looks because it will be under bottom paint.
Next year I had plans to remove bottom paint and barrier coat the bottom anyhow.
I have searched all over this site and the internet in general and found nothing similar, just transom rot and gelcoat cracks.
Another question, has anyone removed this style thru hull? I don't see screws(unless they are under paint) on the outer portion. Do I remove the 2 screws from the inside and turn the inner portion and then pull the lower straight down?
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