ofdphildo Posted June 25, 2020 Report Share Posted June 25, 2020 How does the tank from 2001 look condition wise? Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 26, 2020 Author Report Share Posted June 26, 2020 10 hours ago, ofdphildo said: How does the tank from 2001 look condition wise? Oxidized on the top side a little bit. I am going to drain it and pull it to full inspect it, but the plan is to replace with a poly tank as it’s now about 20 years old and we have come this far. I’ll get pics soon when I can get it out. 1 Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 28, 2020 Author Report Share Posted June 28, 2020 First is port crack, second pic is starboard crack. My plan is to grind out cracks, lay several strips of glass and then fill the cavity of the strakes with epoxy putty then glass over the whole thing. Once I fill in the strakes I will pour foam back in the stingers and glass them again. Ordered foam core sheet material which will be ready to pick up tomorrow. 2 part foam will be shipping in not sure when it will arrive but I should be able to move forward with repairs while I wait. Quote Link to comment Share on other sites More sharing options...
whichwaysup Posted June 29, 2020 Report Share Posted June 29, 2020 Having a hard time visualizing that. Are we looking at the hull from the inside, or the stringer? Where exactly are these cracks? Both strakes (port and starboard)? Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 29, 2020 Author Report Share Posted June 29, 2020 That is looking at the inside of the strakes. The worse crack is the starboard side. The pictures were taken outboard looking inside. Both cracks at the rear portion of the strakes. The strakes are inside of the box stringers also. Whichwaysup, did your glass guy use a stiffer foam than 2lb floatation foam to fill the stringers? I’ve ordered some 2lb and 6lb density foam. My plan was to use 6 lb on the stringers. Probably over thinking it but it sure is a lot of work just getting to the point we are at and I want to make a lasting repair. Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 29, 2020 Author Report Share Posted June 29, 2020 Cracks ground out. Starboard one is really bad. Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 29, 2020 Author Report Share Posted June 29, 2020 Laid down some thickened epoxy then 3 layers of 1708 1 Quote Link to comment Share on other sites More sharing options...
whichwaysup Posted June 29, 2020 Report Share Posted June 29, 2020 We didn't remove or cut into my stringers, and we ended up fixing the crack on my chine from the outside (because the only option from the inside was to do what you did, and completely rebuild the stringers). Interesting to see that your stringer delam led to a crack where I found my crack - right on that chine. Curious, is your keel supported on your trailer? My boat only has the two bunks, and I'm increasingly convinced that, over time, this may be the cause of the issue. Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 30, 2020 Author Report Share Posted June 30, 2020 There was actually no delamination of the stringers from the hull, but The foam was waterlogged And cracked in quite a few places. I think that the damage came from the foam pulling away from the hull and allowing it to flex more than it could take. My belief is that the damage occurred on a trailer, we are on our third. Our current trailer is a 4 bunk design but it was from my old 24 shearwater and needs to be adjusted badly. It used to only go from Vero to Islamorada but at one point my dad had a hub go out and my dad said it was a pretty rough experience for the mav. Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted June 30, 2020 Author Report Share Posted June 30, 2020 Added 2 layers of 10 oz cloth over the whole stringer area then ran the first fillet of thickened epoxy In the strake. Just got my fuel pump to pump the tank out. Will head back tonight and pump the tank out and continue filling the strakes. Quote Link to comment Share on other sites More sharing options...
MuddyBottomBluz Posted June 30, 2020 Report Share Posted June 30, 2020 Epoxy is the way to go, hands down. But remember no polyester resin should go on epoxy, this includes gel coats if you plan on coating the area, there are some ways around it. Epoxy on polyester is okay. I am watching this thread because I love this crap, just thought I would throw my 2 cents in, after all I am not footing the bill! Great story and thread, keep it alive alive until you and the family drive off into a sunset, again! 1 Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 1 hour ago, MuddyBottomBluz said: Epoxy is the way to go, hands down. But remember no polyester resin should go on epoxy, this includes gel coats if you plan on coating the area, there are some ways around it. Epoxy on polyester is okay. I am watching this thread because I love this crap, just thought I would throw my 2 cents in, after all I am not footing the bill! Great story and thread, keep it alive alive until you and the family drive off into a sunset, again! Thanks for the comments! We are using epoxy for all repairs and the plan is to paint the topsides and hull sides and most likely repair gel on the bottom. I’m aware of the epoxy/poly issues but there are some ways around it. One is using a non-blushing epoxy which we are. Another is scuffing the surface prior with rough grit sand paper. I’m all ears to any other methods, I’ve heard there are primers or bonding agents. Quote Link to comment Share on other sites More sharing options...
whichwaysup Posted July 1, 2020 Report Share Posted July 1, 2020 11 hours ago, dfmcintosh said: Thanks for the comments! We are using epoxy for all repairs and the plan is to paint the topsides and hull sides and most likely repair gel on the bottom. I’m aware of the epoxy/poly issues but there are some ways around it. One is using a non-blushing epoxy which we are. Another is scuffing the surface prior with rough grit sand paper. I’m all ears to any other methods, I’ve heard there are primers or bonding agents. A word of caution. Painting can hurt your resale down the line (vs. using gelcoat). Its a small thing, but if you can stick with original material, it may be worth reconsidering. Just my .02! Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 Haha! After 30 years this boat ain’t leaving the family! Thank you for the heads up, I believe you are absolutely correct about resale value. We aren’t 100% on paint yet, but it’s definitely top of the list at the moment. My old man has the final say however. Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 Tank is out. Bilge is cleaned. anyone know how to post pictures without them rotating? 1 Quote Link to comment Share on other sites More sharing options...
whichwaysup Posted July 1, 2020 Report Share Posted July 1, 2020 Wow, looks great! Any hidden issues under/around that tank? Any other signs of cracking/delam? From what I can see, it looks really good, but curious if you've run across anything. Quote Link to comment Share on other sites More sharing options...
jh141 Posted July 1, 2020 Report Share Posted July 1, 2020 anyone know how to post pictures without them rotating? When my pics rotate I crop them and upload again, seems to work. Quote Link to comment Share on other sites More sharing options...
HoneyB Posted July 1, 2020 Report Share Posted July 1, 2020 Some say take the pics with the camera button in the orientation you want the pic to display. In other words down or to the side. Like you if the flip on me I crop and spin them on my phone, then they seem to load the way I would like for them to Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 5 hours ago, whichwaysup said: Wow, looks great! Any hidden issues under/around that tank? Any other signs of cracking/delam? From what I can see, it looks really good, but curious if you've run across anything. I’m pretty pleased by what I saw. The stringers seem to be in great shape. There is some poorly laid glass that I will grind and repair just for the next 28 years of service and piece of mind! Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 32 minutes ago, jh141 said: anyone know how to post pictures without them rotating? When my pics rotate I crop them and upload again, seems to work. Thank you, I will try that Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 1, 2020 Author Report Share Posted July 1, 2020 57 minutes ago, HoneyB said: Some say take the pics with the camera button in the orientation you want the pic to display. In other words down or to the side. Like you if the flip on me I crop and spin them on my phone, then they seem to load the way I would like for them to Hmmm, I will try that as well, thanks! Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 2, 2020 Author Report Share Posted July 2, 2020 Just struck me tonight I could share this. This is our mutt’s tag. No he’s not named after Tom Cruise’s character from top gun 😝. 1 Quote Link to comment Share on other sites More sharing options...
whichwaysup Posted July 2, 2020 Report Share Posted July 2, 2020 That dog's got a great name! Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 2, 2020 Author Report Share Posted July 2, 2020 My dad already had this little sweetie before he found the crack in the hull. We are getting ahead of ourselves but starting to get excited that we might actually get this boat fixed! 1 Quote Link to comment Share on other sites More sharing options...
dfmcintosh Posted July 2, 2020 Author Report Share Posted July 2, 2020 Ran 2 overlapping pieces of 1708 in the bilge tabbed up the sides of the stringers. Stringers are really solid under the deck but felt a little reinforcement wouldn’t hurt while we are in there. I figure it added 10-12 pounds so why not. we need to figure out a tank ASAP. Anyone knows of a poly tank that will fit? Ours is 60” long, 24” wide and 10” tall at the center. Pickup and plumbing is roughly in the center. Quote Link to comment Share on other sites More sharing options...
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