I want to move my water pickups that are in the bottom of the hull. They are 1" to 1 1/2" diameter. What would be the way of going about this. I saw a recomend of 1" depth to 12" out. Is that overkill for this type of deal or can I get away with less. The holes are near the strut about 3" and would like them to be right.
when i fill a hole in the bottom or a stringer i always start with a piece of hardwood dowel, try oak, poplar etc. drill a hole to fit your dowel rod real snug. use a good strong glue, then you can sand them down flush with the hull and begin your fiberglass repair. you know the 12 inches is probably pretty close. you need some area in order to work it out to keep the hull straight when you go to sand otherwise your hull will look like a roller coaster.
on just a one inch hole id grind it back about a inch but only go halh way down the hole. thickness if hull. take a piece of styrofoan and stick it in from other side till its flush with the bottom of the grind out. use packing tape to keep the resin from eating the foam and tape it in so it dont move. fill hole useing glass and resin , let cure. go to other side and take out foam. the glass thats dry is now your backing. again grind back a little and the new resin and fill. when you can get to both sides you can do it as a half
Hey guy i have done this on water pickups on other boats and i would put tape on the botten side of the hull mixing a putty with resin and Cabosil filling the hole to the point were you can start to see it come out the bottom of the boat , let cure , grind out an area making a bevil that goes slightly into the core and re glass with chesse cloth using 4 , 6 , 0r 10 oz which is much easier to work with then a heavier fabric and will be just as strong . I have to say that i pretty much use this way of doing things when filling all holes on a transom or very small hole's on the bottom of the boat such as a water pick up depending on the size of the hole . I hope this might help ? And might i mention that i always use Epoxy for all repairs and have for over the last 25 years .
Last edited by OFFSHORE GINGER; 05-24-2010 at 05:10 PM.