Another BFN Rebuild |
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davidg
Grand Poobah Joined: January-07-2008 Location: NW Chicagoland Status: Offline Points: 2239 |
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Interesting that the wet foam was toward the front of the boat. My boat seems to sit "stern high" in the water when empty, almost to the point of almost having the rear chines slightly above the water line. Maybe thats just the way Southwind's sit in the water, but, I am now wondering if it could be due to the wet foam being toward the front??. Also, Tim, I see you took out both stringers at the same time. I had read before that some people note that their hulls "distort" in shape when they take both stringers out at the same time. Did you notice that, or did you take precautions to keep that from happening? |
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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Ive been looking into Kingplastics.com, and can see many uses for the stuff, i have some smaller samples, it would really be nice to make the floor with the non-skid 1/2, i never thought about ballast tanks made from the plastic, its weldable and maybe someone has experience with welding it.
looks like next Saturday i"ll be buzzing up to detroit for the cradles and hulls, we got 8" on the ground today and still coming |
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"the things you own will start to own you"
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uk1979
Platinum Member Joined: June-13-2007 Location: United Kingdom Status: Offline Points: 1411 |
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Tim I can take some pictures of my SN front keel mount, I thought it would be toast as my boat had been used in the sea but was still in good shape only surface rust, I think it’s a judgement call as to how wet it was when you took the foam out around it on your BFN.
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Lets have a go
56 Starflite 77 SN 78 SN 80 BFN |
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Tim, the bow ring on mine didn't look to have any wood in its anchor. It was connected from the ring with a threaded rod down to the 'keel ring'(trailer ring) and into a stainless bracket that also held the keel ring. Not sure that's the name for it. It did have some 4x4 backers under the top ring; mine weren't bad so I soaked 'em in CPES and re-attached the screws from the top. It's solid now.
Only my opinion...I'd get the rest of that gel off and check the rudder port. I know you know that but had to say it. |
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Gary S
Grand Poobah Joined: November-30-2006 Location: Illinois Status: Offline Points: 14096 |
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Very easy to sit here Tim, warm and not itching and never having done this but personally if you have to question it you'll have to do it just to get it out of your head. Maybe someday you'll want to hang it from the rings and then you will not have to worry. I know, get your Dad to do it
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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BJ, what do you use for grinding? Even the recommended 24 grit flap discs dont last too long with the gel. Only one small break through on the transom so far... no holes in the hull yet!
David, all of the wood was wet. The secondary stringers and a lot of the ribs/bulkheads were rotten. There were several hundred pounds of wet foam in the front of the boat. The main stringers werent complete mush though- so I would guess the boat could have soldiered on for several more years, especially considering how hard we ran it this past summer. We still hadnt noticed any adverse signs of the rot- no gel cracking, etc. |
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hasbeenskier
Platinum Member Joined: May-23-2005 Location: United States Status: Offline Points: 1116 |
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Roge' Captain, I chose to get all the gel off. I can say overkill is when you see the ground through the hole. I have also learned when you think you are through grinding....your not!
bj |
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hasbeenskier
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davidg
Grand Poobah Joined: January-07-2008 Location: NW Chicagoland Status: Offline Points: 2239 |
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Tim....Maybe you mentioned it previously and I missed it, but, were your stringers completely wet/rotted? If you didn't do this rebuild, could the boat have still been run safely with the stringers as they existed? I often wonder the condition of mine in the '76 Southwind.
By the way, very nice work! |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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I hear you loud and clear, BJ! Id like to see all the gel in the bilge and transom go as well- just trying to figure out what is justified vs. overkill. Maybe Ive got a bit more grinding left to do... just when I finally stopped itching!
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hasbeenskier
Platinum Member Joined: May-23-2005 Location: United States Status: Offline Points: 1116 |
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Happy New Year Tim. I do not think my position needs expressing. The only wood in my boats are ply braces under the gunnels
bj p.s. those pics make me itch. |
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hasbeenskier
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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It wasnt crumbling, but definitely wet. That center piece was a bear to remove! The angle iron lifting ring mount was a tad questionable looking, so all the wood had to go. The front lifting ring mount still looks great so we havent touched it- but now Im thinking it might be a good idea to get every single last piece of wood out of the boat. Thoughts? |
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Wacko
Senior Member Joined: March-21-2009 Location: BC, Canada Status: Offline Points: 293 |
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Looking good Tim. Keep the pics coming
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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How bad was the ply in the transom?
Otherwise... And braver than I! |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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Well, I *think* the worst is over. We removed all the glass that held the original stringers, ribs and bulkheads in, and removed all the wood in the transom. About a dozen 24 grit flap discs later, final grinding is essentially done.
We've left the edge of the floor in place for a reference as we start to rebuild. It will be removed and final grinding on the walls will be done once the new pieces have been cut and test fit. |
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82 Nautique 1
Senior Member Joined: January-06-2007 Location: Rock Island, IL Status: Offline Points: 265 |
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Phil, How did you get the kick panel area foamed like that ? Did you form it in wood, pour the foam and then strip the wood ?
Will you then glass over it all ? Thanks for the information |
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lfskizzer
Senior Member Joined: July-26-2007 Location: Wilton, CT Status: Offline Points: 290 |
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Hollywood,
This is how I setup mine on the 85 ski, it is very difficult to get it all the way forward, but turned out pretty good i guess. Sorry for the hijack Tim |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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The boat needs some SKI NAUTIQUE decals, for sure.
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kapla
Grand Poobah Joined: March-27-2008 Location: BA, Argentina Status: Offline Points: 6148 |
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uff got some memories back..LOL..it will be a nice post to follow through the slow winter here in the site..LOL
as for custom desing in my floor its holding quite well till now...boat rides very stiff..... kapla |
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<a href="">1992 ski nautique
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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No plans right now for future growth, but Ive laid it out such the vent tubes are as far forward as possible, and the conduit tube is as far towards the rear as I can go without interfering with the kick plate panel. |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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The airbox is definitely usable space. I have a small amplifier sitting flat on our 88 SN. Leave room for a heater core, etc.?
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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Correct- the 3 tubes on the left are the vent tubes. The one on the right is for the steering cable, control cables, and wiring harness. I want the least number of bends in the cable conduit- Im less concerned with the vent tubes. If I could have fit all the tubes on the right, life would have been easier- but I want the battery box pretty close to centered for weight distribution and access reasons. Pushing the vent tube outlets as far towards the bow as I can has them exiting pretty close to a straight shot from holes in the deck, so minimal 3" hose lengths between them. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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Theres gonna be a test?! A few quick pictures I snapped after dad put in some good time with the grinder. A few more hours spent grinding next weekend should have it almost ready to start mocking up the new stringers and bulkheads. All tucked in next to the 454! |
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Hollywood
Moderator Group Joined: February-04-2004 Location: Twin Lakes, WI Status: Offline Points: 13512 |
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I could have drawn that in MS Paint! (in about 6 months) Just curious, but why are you running 3 tubes the "long" way and 1 the short way. Are they air/ventilation? Is the big tube for cables which you don't want to bend? |
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Sounds like you'll pass Pete's crane dropping test. |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Got it. I'm looking forward to following your build.
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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I will be doubling up the ribs/bulkheads (so they are 1" thick instead of 1/2") at all the joints in the floor. Clearer? |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Could you 'splain for the noob? And by noob, I mean me. |
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TRBenj
Grand Poobah Joined: June-29-2005 Location: NWCT Status: Offline Points: 21123 |
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Correct- the entire build will consist of coosa. The primaries will be 3 laminated layers of 1/2" bluewater 26. The rest of the ribs and bulkheads will primarily be 1/2", doubled at the floor joints as applicable. The front section of the floor where the front seats mount will be 3/4" with glass on both sides. The rest will likely be 1/2". The front sections that are being foamed will be simply glassed over, save for the raised kickpanel portion, which will be framed with 1/2" coosa to allow for the mounting of panels and accessories. |
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skfitz
Senior Member Joined: October-15-2009 Location: Herculaneum Status: Offline Points: 138 |
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Very impressive. What material do you intend to use for the stringers? Coosa sheet cut and laminated to proper dimension?
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BuffaloBFN
Grand Poobah Joined: June-24-2007 Location: Gainesville,GA Status: Offline Points: 6094 |
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Glad you started this Tim; and looking good!
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