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TOPIC: 1968 MFG Chevron New Sole
1968 MFG Chevron New Sole 11 years 2 months ago #85017
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The floor is rotted on my mfg and this winter I'm replacing it.
Here is what I'm going to use. 1/2 inch plastic sheet. Wanted 3/8 but they only had 1/4 and 1/2. Not bad for "free", huh? 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 11 years 2 months ago #85023
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how are you going to attach it to the boat nothing will stick to it
not even 5200 Charles |
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Re:1968 MFG Chevron New Sole 11 years 2 months ago #85027
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solutions.3m.com/wps/portal/3M/en_US/Marine/Home/Products/Catalog/?PC_7_RJH9U5230GE3E02LECIE20S4K7000000_nid=LS56XTRKJXbeQH8HT14PGTgl&MDR=true
King plastics reccomends the above. if that doesn't work I'll attach it mechanically. the link is to 3m dp-8010. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 11 years 3 weeks ago #86712
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I started testing adhesives on this King Starboard.
I know nothing sticks to it, and the manufacturer says to use mechanical fasteners. But i wanted to see if i can make it work, even if i do not use it for the floor. So i cut off a 2 inch strip and started playing. I had some 5200 on hand so i started with that. Here is what they suggest if you need to use an adhesive. 1. sand with 120 grit 2. clean with acetone or similar 3. heat with torch, don't burn or warp just kiss it with the flame 4. let cool and apply adhesive. So that's what i did. The directions on the 5200 say to wait a week after application. I've had it clamped for a week until today. I did 2 test points. One with plastic to plastic and one with plastic to wood. Here is what i've found. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 11 years 3 weeks ago #86713
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After a week the 5200 is cured around the edges where it seeped out. But, between the plastic it is still wet.
It took my weight leaning on the wood to part the bond between the plastics. About 210#. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 11 years 3 weeks ago #86714
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So i tried prying apart the wood and plastic. It stayed together.
So i attached a pair of vice grips to the plastic and leaned on the handle. The wood twisted but even putting my weight on the vice grips the bond did not let go! But the wood was about to snap. It's a red oak slat i had left over from building our kid's crib. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89129
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So nobody commented on the starboard adhesive success. Interesting.
Anyway here is the boat with the seats out and just starting to remove stuff. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89130
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Here are the gunwale boards. I don't think they need more than a cleaning and shine. Also maybe a few nails in the aluminum bead.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89131
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I put it up on skates. So now I can push the boat anywhere in the garage.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89132
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So here we go. The floor is thin ply with fiber on top.
The bond let go a long time ago. The glass peels right off the wood. The stringers are plywood on end attached to the hull with fiberglass "angle iron". And they drip when you squeeze them. So when I replace the stringers do a similar setup or is there a better way? 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89163
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Hear are some more pictures. It looks like the floor surface plywood was applied as 2 foot wide sheets. You can see in the first two that there are board placed horizontally every two feet and that is what the floor was screwed to. There is glue on top of the stringers.
I'm sure i just repeated common knowledge, but it's all new to me! 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89164
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This is going to be fun!
www.fiberglassics.com/components/com_kunena/template/200907_the_lips/images/english/emoticons/sad.png
Somehow i have to get under that storage area (the boxy blue area) to remove the floor and put in new stringers! 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89174
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Did you forget to remove the deck?
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Re:1968 MFG Chevron New Sole 10 years 10 months ago #89178
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I would need to remove the entire top half, not just the deck at the bow. I was trying to get away with not doing that. I don't have room to store both halves of the boat.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 10 months ago #89325
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I see a lot of FUN in your future. But you will have a solid boat once you get that deck replaced. There is a ton of great information here and on the internet.
www.youtube.com/playlist?list=PL02C318B574CD948D Check out this guy on youtube replacing the deck in a Sea-ray. The information will help you more than words can say. |
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Re:1968 MFG Chevron New Sole 10 years 10 months ago #89399
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This is a lot of fun.
Everyone is telling me to pop the top. I've been reluctant because I want finish by spring.  I bought an osculating tool and started cutting out the old stringers. Those tools are great. Hopoento work on it tomorrow. I'll get some pics. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90109
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Here are some pics of my progress.
I've removed one stringer so far. The last few feet came out in one piece, but the part under the seat was to rotten. I was able to get the front 6 inches out. So, once i measure the length of the stringer i think i can use this as a template. 
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.  . 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90140
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I have most of the floor out. There is some clean up work to do with the oscillating tool. Everything on the port side is out, but starboard need some touchup.
I've found that the floor sits on the hull near the freeboard. There is an indentation that is the outer part of the tri-hull. The floor spanned this little cavity and attached to the hull with just fiberglass tape on the top. This is the darker area to the right of the picture. Also, what is that black stuff growing on the fiberglass that looks like roots? some kinda mold? 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90142
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This number was on the starboard side of the hull.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90143
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NO, that is not a bullet hole!
There has been some speculation about the transom. I drilled that hole on the inside of the transom near the bottom. The wood that came out was NOT rotten! Also, i probled and did not find any rot. If you look at the following pictures, I think someone may have worked on the transom. Let me know what you think. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90144
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This is a picture of the transom. The area on the left is the splash well in front of the motor. That glue that is coming out looks like a polyurethane adhesive to me. It does not seem like resin.
Also, the horizontal line under the exposed board is a layer of plywood. It seems there are two layers of ply. Something you can't see in this pic is that there appears to be grinding behind the splash well, on the piece of plywood. In an area the i can not imagine getting an angle grinder. Also, the paint in this area seems like spray paint, not the harder paint on the other areas of the interior of the boat. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90145
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Look, I got a free socket with this boat! That board was put in for the swim deck.
. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90146
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Here is a pic of the back of the bilge area.
Note the paint. Looks like spray paint. And the bilge area is bright white. The material is thicker than the fiberglass and harder. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90147
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Last one today. This is the side of the bilge. Its hard to see, but there is about an 1/8 inch thick white coating that is NOT resin and fiber.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90148
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I am glad to hear the transom is solid and it looks like you are making excellent progress. Please keep us posted. Looks like you will make boating season in time.
Al |
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Glasspar g-3 Owners Club, Marque Club Representative ACBS
www.g3owners.com |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90150
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Thanks morris. I'll make it if the wife doesn't kill me first.
Wish I had a portable saw mill. I have a dozen white oak trunks laying around. Each one is 12-15 feet long and 18 inches around. Make some great stringers. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90151
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Thanks morris. I'll make it if the wife doesn't kill me first.
Wish I had a portable saw mill. I have a dozen white oak trunks laying around. Each one is 12-15 feet long and 18 inches around. Make some great stringers. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90152
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Well the wives are a definite distraction. Many boats used white oak for stringers. Shame there isn't a rough cut mill in your area. Keep up the good work
Al |
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Glasspar g-3 Owners Club, Marque Club Representative ACBS
www.g3owners.com |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90154
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Funny. Didn't think of it until you said that about the mill. There is agree farm with a mill about a mile away. I'll have to stop by and see if they do milling for me.
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90189
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Cool,
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Glasspar g-3 Owners Club, Marque Club Representative ACBS
www.g3owners.com |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90670
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So the dirty work is done! All the old floor and stringers are gone!
I have a question about removing vinyl. There is some of the vinyl glued to the gunwale under the bow. It was behind a bulkhead that was under the dash. I'm going to move that bulkhead forward to give more leg room when sitting. Its not structural so it shouldn't matter. Anyway since it was never in the sun the glue didn't let go like the rest of it. So how do I get the vinyl off the gunwale? |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90689
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Congrats on (almost) completing the de-construction phase!
You might try (carefully !) heating the glue with a heat gun and using a scraper or putty knife, D. Just a thought, others may have a better idea? |
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Mark
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Re:1968 MFG Chevron New Sole 10 years 9 months ago #90700
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I can't believe we were riding around all summer on these stringers. They felt more like cardboard than plywood.
You can see that i've used the old ones as a template. After cutting them i did a test fit and they seem fine. I plan on putting on a couple coats of wood preservative before they are glassed in. I have a few wood preservatives i've used on other projects that i've applied to a piece of scrap. After it dried i sanded it and applied some fiberglass and resin. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 9 months ago #90701
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Here you can see my great-uncle's sabersaw. I've had it for about 20 years. Have had new ones and none of them cut as well as this beast.
You can unscrew that handle at the top to add lubricant. The shaft the blade attaches to moves straight up and down, no vibration. Made in the USA! 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 7 months ago #93723
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Besides working on getting registration on the powercat I have been working on the floor. Just have not had time to post progress.
I glassed in the stringers and support and added foam. All wood is treated with rot inhibitor. As a side note for anyone doing this for the first time.... Take off the top. Getting the rear floor to fit and getting stuff under the bow was a pain. I fitted the floor but need to glass it in place and do the fiberglassmatt and carpet. After seeing the plywood in I'm tempted to just screw it down! I added an extra oak bulkhead and supports under the steps. 
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 7 months ago #93746
(I hope you're kidding!) Don't do it DL, you've worked too hard and done some nice work there. Just my two cents....... |
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Mark
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Re:1968 MFG Chevron New Sole 10 years 7 months ago #93779
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Don't worry Mark, wouldn't actually do it!
You may notice that the foam isn't up to the top. I plan on trying some minimal expanding foam on top just before I put down the plywood. I've used it in similar projects and am sure I can do it without bowing. Should add some extra barrier to keep moisture out. I'll test on one panel before I do the whole thing. One of the books I read mentioned putting vents in the floor above the center channel but under the bow. Said it promotes airflow when the plugs out. What's the thoughts on that. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 7 months ago #93800
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I like that saber saw, take a cotton wheel and some jewlers polish and high mirror finish her.
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Golden Rule number one; While working in the bilge, absolutely under no circumstances, NO FARTING!!!! Captn Shake aka Joe.
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Re:1968 MFG Chevron New Sole 10 years 7 months ago #93916
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She does deserve that for all her loyal service. Once i'm done the sole of the MFG and get motors on the 'Cat I'll do that on a rainy weekend.
Speaking of the sole, i just finished treating the plywood. It'll dry by the weekend and I'll start layin' 'er down! Oh, and i ordered some blue carpet. Decided against some kind of paint... Shows to many flaws... Not that there are going to be a lot, just don't want to get the sole cosmetically perfect enough for paint finish. I saw some pics of floors with different non-skid rubbery coverings and didn't like the look. |
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Dan
68 MFG Chevron 61 Power Cat 18DC Tahitian |
Re:1968 MFG Chevron New Sole 10 years 7 months ago #93948
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What foam did you use?
Think you will have her ready for Silver Lake? |
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