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  1. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    I've been meaning to add these stiffeners to the portion of the top plate that will extend out beyond the swim deck. I finally got them done. . . Also ground out a dry spot on the starboard side panel and re-glassed it. . . One more layer of glass on the transom, then I'll make the splash wells.
  2. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Odds and ends today . . . Fixed some dry areas on the starboard side panel Added the 5th layer of tabbing to the engine stringer/transom joint Added stiffeners to the top plate 'wings' Tomorrow will be transom finishing day . . . Right now I am splitting time between the extension bracket...
  3. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    I don't know how this happened, but for some reason, I have no 1708 cloth left, and about 15 yds of 1808 . . . :unsure::cautious: I thought I was using up 1808 like a bad boy . . . but maybe not. I'll just use the 1808 on a 45˚ angle and call it good. :p
  4. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    2010 . . . :LOL:
  5. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Splashwells . . . A unique aspect of the design is that there are stringers directly in line where the engines will mount, as well as stringers to either side. Installing the splashwells seems to be a bit of a challenge given that here will be little/no access to the underside of the wells...
  6. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    OK . . . thanks for the comments. I'm more concerned about the weep hole (sleeve) that will be between the 2 pieces (hull & extension). I believe surrounding it in 5200, as mentioned may do the trick for longevity. As for the garboard itself . . . I could go either way, but if on the...
  7. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Garboard Drain ??? . . My boat does not have a garboard drain . . . Must be a 21st century thing . . . :unsure: During the off-season, keeping the bilge empty is a PITA. Adding the hull extension will only make matters worse. So, I've been thinking about drilling a hole from the original...
  8. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    While I had the extension bracket outside, I did a 'dry run' of installing it to the boat. A few tweaks are needed, based on this trial run. , Right now I have a single 4x4 along the keel pad to guide the E-B in place. I'll need something more like a cradle so it will have guides on either...
  9. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    @redneck joe , @Pmt133 . . . Just to be clear, the boat is a 2016 model . . . The 328/338 series was introduced in 2014 as a twin engine sterndrive bowrider with overnight capabilities (328 model). It was an extension of the Azure Boat product line, which Cruisers Yacht acquired in 2011...
  10. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    479.4 lbs. . . . more than I was thinking (hoping) The winner is @flashback
  11. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Yes, the N.A. thought that I was "pretty much there" with my design and details. He said that he usually gets hand sketches to work with. Both of us being engineers, we spoke the same 'language', so the conversations went well. The N.A. did a hydrostatic analysis using some specialized...
  12. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    IDK . . . but I'll say 420 . . . :unsure:
  13. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    The side supports are glassed in . . . . . The N.A. thought that is would be good to reduce them so that they would not be in the water. (OK . . .) They were 15" tall and I cut them down to 10". Still pretty effective in stiffening up the top plate overhangs. Next steps will be to 'flip'...
  14. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    today's work . . . . . I just need to install (glass) the side stiffeners and then it will be ready to flip back over. After that, a few more layers on the transom and then the splash wells.
  15. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Getting input from the Naval Engineer and the adjustments I made to the structure added about 4 gallons of resin and maybe 10 yds of cloth to my initial numbers. All for good though . . .
  16. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    An ice bucket would be good for you . . .
  17. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Speaking of resin and the need for sanding vs. not . . . Even with the plastic covering during curing, the resin still has some tackiness to it. I can tell with the sandpaper quickly clogging up. . . It is not a bad thing, because I am going through my 'old' supply of sandpaper that has been...
  18. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    IDK . . . one of the world's mysteries. I think the latest batch of resin is not going as far as the previous. . . . I may have been a few gallons short of my estimates . . . not sure . . . In total, probably will use 10% more.
  19. tpenfield

    I/O (Sterndrive) Conversion to Outboards

    Not a dumb question at all . . . Yes, it does allow the surface to cure to some extent. It sort of depends how long I keep the plastic on there and there are usually a few small air pockets that develop. I sand the surfaces between layers just to be sure of adhesion. The Admiral noticed...
  20. tpenfield

    1985 Bayliner 2750 Ciera Sunbridge Resto

    Nice updates . . . looks like you have been busy. I noted your safe configuration of cinder blocks when you had the boat off of the trailer. (y)
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