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TOPIC: 1972 gw invader drag and ski

1972 gw invader drag and ski 2 years 10 months ago #110930

  • curse
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I just brought this home and checked it over. I wanted to split the halves to repair everything the correct way but I really don't want to after seeing GW glassed the halves together from the inside.
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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110931

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I want to remove the damaged wood in the floor but the sides go down and attach to the floor where I wanted to cut it out. Should I just cut it up to the sides and leave a small amount of the bad wood in there? That's "if" the wood is bad farther up by where the sides attach.
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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110932

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And then the transom...
It is definitely soft and needs replaced. How have others dug the rotten out to replace? I'm thinking of putting that pour in transom repair stuff.
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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110933

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The transom is not all the way across back of bow, just as wide as the two taller parts.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110942

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curse wrote:

I want to remove the damaged wood in the floor but the sides go down and attach to the floor where I wanted to cut it out. Should I just cut it up to the sides and leave a small amount of the bad wood in there? That's "if" the wood is bad farther up by where the sides attach.

That's where a little "finesse work" comes in with a flap wheel disc on a 4"grinder curse. I'm not that familiar with the Invader, but in most boats (Glastron/Carlsons) the area you circled is actually the inside of the hull! The wooden part of the floor is actually very narrow up in the footwell area.

I wouldn't leave any bad wood in when rebuilding, get it all out and grind for good adhesion on the new floor and stringer tabbing areas.

Just my two cents, more up close pics may help others give better advice?

It is definitely soft and needs replaced. How have others dug the rotten out to replace? I'm thinking of putting that pour in transom repair stuff.

Pics, screwdrivers, scrapers, putty knives, chain saws! (Seriously, I've seen this done!) Splitting the hull is the easiest way to get it all out, but I do understand your hesitation when the halves are glassed together. An oscillating "multi-tool" would come in very handy for making the cut where the halves meet, I still believe it's the best way to approach a total rebuild. ;)

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Mark

Re:1972 gw invader drag and ski 2 years 10 months ago #110952

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More detailed pics later. This thing is 14 foot long and rated for a 95 horsepower motor so I'm really leery about compromising the strength by splitting it.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110956

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No compromise needed, you'll need to glass the halves back together like they were originally! The worst part will be crawling up in the bow to work, glassing the halves back together isn't that hard at all. And it's inside where it won't really be seen, so fairing it smooth isn't really a necessity.

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Mark

Re:1972 gw invader drag and ski 2 years 10 months ago #110965

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Hmmm, now you got me thinking.

Here are some more pics of the interior. You can see the wood under the side rails. I thought about drilling the rivets to the sides out and flexing the sides out just enough to cut the bad wood out and replace.
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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110969

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Mark, here's a pic I found on the web of the same boat split.

1. Would I cut straight in or try to cut it so that lip is still intact?

2. Would I cut out the old fiberglass that GW applied to the seam or just fiberglass over it when putting back together?

If I split it I want to make sure I do it the best way!

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #110971

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oops, forgot the pic. Here it is.
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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111033

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Looks like I'm on my own on this one. ;)

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111034

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curse wrote:

Mark, here's a pic I found on the web of the same boat split.

1. Would I cut straight in or try to cut it so that lip is still intact?

Your new pics really help with getting an idea of what you're dealing with, thanks! I like your idea of drilling the rivets out and replacing the entire panel, (no lip).

2. Would I cut out the old fiberglass that GW applied to the seam or just fiberglass over it when putting back together?

If I split it I want to make sure I do it the best way!

I don't think you'd have to grind it all out if it is still in good shape (well adhered). Grind it down a little to get good adhesion with your new fiberglass and lay it over what's there. I know it seems like a lot of extra work, but with what you're dealing with layup wise I really believe it will be the best way to tackle the job in the end.

Once again, just my two cents worth...... ;)

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Mark

Re:1972 gw invader drag and ski 2 years 10 months ago #111035

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Looks like we posted at the same time. Thanks for your 2 cents! Trust me, it helps.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111039

Looking forward to seeing this boat restored. I have the same one waiting for me to fix it. I also have a 90hp Merc that I will put on it.

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Re:1972 gw invader drag and ski 2 years 10 months ago #111043

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Any pics? Do you have a lot of work to do to it?

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111064

I do have some pics floating around some where. I'll post them up soon. It needs everything! Right now,there aren't any stringers, or floor. The transom needs to be replaced. Not sure if I'm going to delete the splashwell when I replace the transom.

I'm not to far away from ya. I live in Hamilton Mi.

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Re:1972 gw invader drag and ski 2 years 10 months ago #111080

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Oh, we do have the same boat. Mine needs everything too! Post pics if you find them.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111085

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Hey, Curse... was that the one on Grand Rapids Craigslist?

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Re:1972 gw invader drag and ski 2 years 10 months ago #111087

  • curse
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Yes it is

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111091

Here they are.
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Re:1972 gw invader drag and ski 2 years 10 months ago #111092

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Re:1972 gw invader drag and ski 2 years 10 months ago #111095

  • curse
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I like the white. It looks like i'm in for a tough long project!

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111116

Unfortunately that's all spray paint and needs to come off.

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Re:1972 gw invader drag and ski 2 years 10 months ago #111197

  • curse
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dobber, I sent you an email. Let me know if you get it.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111208

I didn't get it.

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Re:1972 gw invader drag and ski 2 years 10 months ago #111307

  • curse
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Does anyone know where the hull I.D. number is on my GW?

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 10 months ago #111351

It's a metal "sticker" on the port side of your boat, near the dash board. And it looks like yours came off according to your pics. You can see where it was located.

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Re:1972 gw invader drag and ski 2 years 10 months ago #111352

  • curse
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Aha. Thanks

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan

Re:1972 gw invader drag and ski 2 years 9 months ago #112009

  • curse
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I'm way too busy to get this project going and would rather do it from start to finish instead of off and on. I also need to do more research on things like fiberglass vacuum bagging. Etc. I'm looking at starting it next spring.

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1960 slickcraft catalina
1963 g-w invader ski-bird
1972 g-w invader drag & ski 14
Portage Michigan
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