1987 Bluefin Sportsman 1900 remodel

[mattevans24]

Re: 1987 Bluefin Sportsman 1900 remodel

I am working on the same project! Started this week. I am down to the hull, foam removed. Now I have an issue that I need to address, there are tiny holes in the hull. I turned off the lights in the garage and put a light in the boat, and when I slid under the boat it felt like I was looking up at the stars

Do you guys think the gluvit will seal this? If not, what's the best way to repair? The picture below shows the largest of the holes. There is about 18-20 of these holes throughout the hull.

 

[jigngrub]

Re: 1987 Bluefin Sportsman 1900 remodel

I am working on the same project! Started this week. I am down to the hull, foam removed. Now I have an issue that I need to address, there are tiny holes in the hull. I turned off the lights in the garage and put a light in the boat, and when I slid under the boat it felt like I was looking up at the stars

Do you guys think the gluvit will seal this? If not, what's the best way to repair? The picture below shows the largest of the holes. There is about 18-20 of these holes throughout the hull.
View attachment 133495

You should start your own thread about this Matt.

... but to answer your question, no Gluvit won't fix those holes. You could use a metal type epoxy like JB Weld, but I'm not sure how long that would last.

The best fix would be to drill out the holes and install closed end blind rivets like in this vid.

http://www.youtube.com/watch?v=L0MA1-5NXjs&feature=related

You can buy the rivets and setting tool here:

http://www.rivetsonline.com/rivets-en/blind-rivets-en/closed-end-blind-rivets.html

These rivets and the setting tool come in very handy if you own a riveted hull boat.

 

[ezmobee]

Re: 1987 Bluefin Sportsman 1900 remodel

I am working on the same project! Started this week. I am down to the hull, foam removed. Now I have an issue that I need to address, there are tiny holes in the hull. I turned off the lights in the garage and put a light in the boat, and when I slid under the boat it felt like I was looking up at the stars

Do you guys think the gluvit will seal this? If not, what's the best way to repair? The picture below shows the largest of the holes. There is about 18-20 of these holes throughout the hull.

I've already moved one of your posts to a new thread. Now here's another one. Please start your own threads instead hijacking this one. Here's your new thread: http://forums.iboats.com/showthread.php?t=533681

 

[mattevans24]

Re: 1987 Bluefin Sportsman 1900 remodel

I've already moved one of your posts to a new thread. Now here's another one. Please start your own threads instead hijacking this one. Here's your new thread: http://forums.iboats.com/showthread.php?t=533681

Sorry, rookie move...

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

I did eventually get the tank out with a lot of prying and breaking the seal of the foam. I opted to leave the fuel in while prying so the tank had some pressure/weight to "push" back. I was worried that force needed to pry it out would stress or flex the tank too much. Once the tank was mostly loose I took out the fuel to make it easier to manage.

Here's the odd thing: the tank itself was actually sitting on a 1" bed of foam between it and the floor. The way the upper brackets are attached to the hull, the tank could actually use another 1/2" in height. Not really sure if it was intentional or if the foam got in there by accident and then expanded and raised the empty tank with it and then the mounting brackets were added afterwards. I'm sure I'll be scratching my head when it comes time to re-install it.

When it does come time to put it back in, (& I really liked how well that foam held the tank) what type foam (out of a can) should be used? Should I leave some of the current foam in place as a "form" to get the proper placement/bonding later? If I remove the old foam completely, will the new foam adhere to the hull as well as what is here currently?

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

NuWave Marine has good deals on fuel line.

Thanks for the heads up

 

[ezmobee]

Re: 1987 Bluefin Sportsman 1900 remodel

You'd use pourable expanding foam from someplace like U.S. Composites. Avoid the temptation to use Great Stuff

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

You'd use pourable expanding foam from someplace like U.S. Composites. Avoid the temptation to use Great Stuff

Bah, I thought my subliminal thoughts in the parentheses would get me an easier solution. I can add that to my epoxy order.

Wife: "How much is this boat thing going to cost?"
Husband: "A few hundred $"
What the wife is thinking: That's not too bad for re-doing a whole boat
What the husband is thinking: I wonder which piece she meant

 

[jbcurt00]

Re: 1987 Bluefin Sportsman 1900 remodel

Wife: "How much is this boat thing going to cost?"
Husband: "A few hundred $"
What the wife is thinking: That's not too bad for re-doing a whole boat
What the husband is thinking: I wonder which piece she meant

Yep,

And we hope she doesn't ask about the whole extra boat, or extra motor, new tools etc etc etc ........

Ask me no questions & I'll tell you no lies.

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

Ha! Loose lips sink ships.

I disconnected a couple hundred wires and cables and lifted the motor off to start on the transom. The plans from the link I posted work great (with some modifications for a larger motor) for the outboard stand

I also gave the inside a good spray down and did a quick leak test

I was pretty pleased to only find a really slow leak (one drop every few minutes) from two rivets on the port bow and a slow leak from a poorly mounted transducer bracket.

Next I'll be going back and forth between gutting and prepping the inside for Gluvit and taking out a million bolts, screws, and nails from the transom...

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

A quick question:

I know some you Starcraft guys have run into this issue but what is the best way to apply Gluvit to the area behind the hull/side brackets?

Pictured here:

My guess is this (obviously w/the hose cut shorter):

Any other ideas/tips?

Also, is acetone a good option for a final scrub and wash before gluvit? I've power washed most of the grime now it's on to the removal of the harder gunk.

 

[ezmobee]

Re: 1987 Bluefin Sportsman 1900 remodel

I just didn't. Ya do what ya can do.

 

[jigngrub]

Re: 1987 Bluefin Sportsman 1900 remodel

If you haven't already done something to them you can fix your 2 leaking rivets like this.

http://www.youtube.com/watch?v=L0MA1-5NXjs&feature=related

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

I removed all of the transom bolts and screws. I love all the mysterious paper (aluminum) cuts that appeared after that job.

I was also surprised by the level of corrosion on the hardware. Many were completely corroded . This boat really was held together by globs of silicone.

The most difficult part of removing the transom was unscrewing this gunnel mounting plate:

I am thinking of mounting that bracket on the exterior side (swapping the two sides for proper angles) for ease of use. Removing the screws was one thing, drilling and installing them back will be another. Do any of you have any experience with this hard to reach bracket?

Unfortunately I was not able to get the transom out in one piece but after some MacGyvering I was able to get close. Definitely enough to rough out some easy templates.

I picked up the decking too. I am going with 3/4" Arcuaro ($39/sheet) & epoxy. Still not optimal temps (large temp swings) here for the gluvit and epoxy although I may bump the boss's car out of the heated garage (by trading a couple items off the honey-do list ) and start on the wood.

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

If you haven't already done something to them you can fix your 2 leaking rivets like this.

http://www.youtube.com/watch?v=L0MA1-5NXjs&feature=related

Thanks for the how-to. I ended up watching that whole series of videos.

I was planning on bucking them but total replacement with some epoxy may win.

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

This was my favorite tool of choice for removing the transom:

My transom removal recipe: A lag screwed in at varying angles with a heavy gauge wire loop attached to my hoist. I had a couple of cats claws to hold each side up while re-positioning the lag and a rubber mallet to jar the transom loose if it got stuck. Slow and easy but it got the job done.

 

[jigngrub]

Re: 1987 Bluefin Sportsman 1900 remodel

Thanks for the how-to. I ended up watching that whole series of videos.

I was planning on bucking them but total replacement with some epoxy may win.

Rebucking an already weakened leaky rivet only lasts for a little while before you have to rebuck it again.

The closed end blind rivet and epoxy is a much more permanent and worry free fix... and if other rivets start leaking in the future, you'll already have the tools and know-how to fix them in short order.

 

[Puddle_jumper]

Re: 1987 Bluefin Sportsman 1900 remodel

The most difficult part of removing the transom was unscrewing this gunnel mounting plate:

I am thinking of mounting that bracket on the exterior side (swapping the two sides for proper angles) for ease of use. Removing the screws was one thing, drilling and installing them back will be another. Do any of you have any experience with this hard to reach bracket?

Does anyone have any similar experience with/or see a problem with moving this bracket to the outside instead of inside the gunnel?
Structurally it would appear to be no different.

 

[ezmobee]

Re: 1987 Bluefin Sportsman 1900 remodel

I see no issue. I had to add some to mine in a similar location cuz the factory ones cracked (in the corner here http://i176.photobucket.com/albums/w200/ezmobee/New Boat/DSCF2633.jpg)

 

[jigngrub]

Re: 1987 Bluefin Sportsman 1900 remodel

Does anyone have any similar experience with/or see a problem with moving this bracket to the outside instead of inside the gunnel?
Structurally it would appear to be no different.

No structural difference, just a cleaner look on the inside... but it's your boat and you can rebuild it any way you want! That is one of the best things about doing your own resto, you get to do it the way you want.