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Project Radiant (Lake and Bay hull)

Old 10-03-2017, 06:02 PM
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Default Project Radiant (Lake and Bay hull)

I am starting this thread as a place where I can ask questions and post pictures of my rebuild. I picked this boat up back in March and worked for a couple months getting it back on the water.

The boat sat unused since 1996 and everything needed to be replaced. The hull is a 91 and the motor is an 89 with 719 original hours. I had to pull the powerhead and replace all the gaskets, motor mounts, re epoxy the lower unit. I rewired the entire boat as well. I got it on the water and enjoyed it for the summer until I started smelling gas leaking from the tank.

Below are some pictures of how I got it, and the work to get it back on the water.

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Old 10-03-2017, 06:13 PM
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This past weekend I was able to pull the cap and take a look at things. Transom and Stringers were made of a foam material and are solid. The bulkheads that supported the cap used a material that absorbed water, reminded me of particle board. So my initial plans are to replace them all with a composite material.

The tank is a 52 gallon which was a lot of weight on the nose. I plan on going back with a 40 gallon and then adding a rear tank of about 30 gallons. The boat was always a little bow heavy, the added weight in the rear is what I am after. I plan on using the front tank for long runs or when I feel I'll want weight up front.

I also plan on cutting the cap down flush. The current design relied too much on the screws. I would rather it sit down more on the hullsides so it is equally supported. You can see in some pictures above where the starboard corner dipped over time.

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Old 10-04-2017, 04:52 AM
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Cool boat, I'll be following.
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Old 10-04-2017, 10:10 AM
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On your bulkhead question... Youd wana use the non-scored version of the d-cell. The contour sheets are for coring curved surfaces or wrapping a round jig..

That seacraft you sold me is coming along nicely by the way Recognize the yard haha!
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Old 10-04-2017, 10:34 AM
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Originally Posted by dirtwheelsfl View Post
On your bulkhead question... Youd wana use the non-scored version of the d-cell. The contour sheets are for coring curved surfaces or wrapping a round jig..

That seacraft you sold me is coming along nicely by the way Recognize the yard haha!
Thanks for the help with the bulkhead question. I Plan on picking some up hopefully this week to get started on replacing the bulkheads.

And that seacraft was a huge project. Ive been following on classic seacraft. You're doing some incredible work on That boat and I think watching that boat come together has helped me see what I can do better on this boat. Although this is nowhere near the project the seacraft was.
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Old 10-09-2017, 02:09 PM
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Default Gas Tank Removed

I got the tank out last week. I've pulled out 3 garbage cans of heavy gas filled foam. Need to start calling and get some quotes on new tanks.

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Old 10-10-2017, 06:04 AM
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Looks like fun to me!!!! I'm following!! Keep up the great work
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Old 10-11-2017, 01:43 PM
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Looks like it will be nice, what motor is that? I'll be watching.
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Old 10-11-2017, 01:49 PM
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Originally Posted by leonreno View Post
Looks like it will be nice, what motor is that? I'll be watching.
It is a 1989 2.4 Merc 200. It is the original motor to the boat. Hour meter was at 791hrs when I bought it. After sitting 20 years the meter never worked again. I've probably put another 50 or so hours running it during the Summer. It has perfect compression so I am gonna just keep running it
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Old 10-18-2017, 05:40 PM
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Started cutting out some Divinycell for the bulkheads. The material is the 4lb core and only 3/8" thin so I decided to 1 layer of 17oz biaxial on each side so they hold their shape better when tabbing them in to the hull.

I have a couple questions that maybe someone can help me with. When tabbing those bulkheads into the hull, should I use a 1708 or just keep using 17oz for the tabbing? I am using epoxy. Not sure if that Mat layer is necessary in this case. And how much tabbing should I do?

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Old 10-18-2017, 06:38 PM
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Unfortunately i can't answer your tabbing question but that is a great looking boat. Will be following for sure
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Old 10-18-2017, 07:29 PM
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Good progress.
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Old 10-19-2017, 02:56 PM
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Originally Posted by 305seahunter View Post

I have a couple questions that maybe someone can help me with. When tabbing those bulkheads into the hull, should I use a 1708 or just keep using 17oz for the tabbing? I am using epoxy. Not sure if that Mat layer is necessary in this case.
I like 1708 for tabbing in places that won't require fairing. The Mat increases adhesion between layers, even with epoxy. If fairing is required then a lighter weight material will be less work
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Old 10-19-2017, 02:57 PM
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Originally Posted by mshugg View Post
I like 1708 for tabbing in places that won't require fairing. The Mat increases adhesion between layers, even with epoxy. If fairing is required then a lighter weight material will be less work
One more thing, the 1708 likes inside corners. It doesnt conform as well to outside corners even with a radius. I like 12 oz biax for those.
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Old 10-19-2017, 09:20 PM
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Always a layer of mat , it helps the bonding. Dont glass over and thing without grinding and saniding for best adhesion like old parts of the hull that might have paint or gelcoat. 1708 is good stuff for tabbing the bulkheads. Those boats flex alot ,I would tab every inch of the bulkheads in. Dont want them breaking loose on you. I hope you marked the heights of all of them as it is very important to get the deck to sit right again
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Old 10-20-2017, 09:15 AM
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Originally Posted by tunatango123 View Post
Always a layer of mat , it helps the bonding. Dont glass over and thing without grinding and saniding for best adhesion like old parts of the hull that might have paint or gelcoat. 1708 is good stuff for tabbing the bulkheads. Those boats flex alot ,I would tab every inch of the bulkheads in. Dont want them breaking loose on you. I hope you marked the heights of all of them as it is very important to get the deck to sit right again
I am not too concerned with the heights of the bulkheads right now. I made them a little taller than they need to be with plans to cut them after. I am dropping the cap down a couple inches compared to where it used to be. I will end up with a flush cap when it is all said and done
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Old 10-22-2017, 12:12 PM
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very cool - subd
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Old 10-23-2017, 05:30 AM
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I really like the lines on this boat. It looks good in the water.
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Old 10-23-2017, 05:44 PM
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I finished up 2 bulkheads this weekend. I am happy with the outcome and am impressed with just how strong they are. Also started messing with the cap. I cut out the splashwell because there was going to be a clearance issue with the stringer knees when I drop down the cap a couple inches from it's original location. I decided that a splashwell is pretty useless and it will look cleaner without one


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Old 11-02-2017, 05:19 PM
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I decided to ditch the two tank idea and put in one tank under the floor, so I cut out where the tank would go and it looks like I am going to just end up doing the floor. All the coring material has basically disappeared from the rot. I will put in a 45-50 gallon tank under the new floor. This will free up a ton more storage up front. Going to remove everything from the boat and go ahead and pull up the floor tomorrow. Fun stuff


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