1987 Ski Centurion Tru Trac II - First Time Rebuild - Floor, Engine, Dash, etc.

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ACon977

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Just started using an oscillating tool a year ago and don't know now how I ever worked without one. One of my best investments ever. That and a good electric scissors which sure made cutting fiberglass, vinyl and carpet a whole lot easier.

Between that and the 4 1/2 grinder I'm torn. although I probably use the grinder for more now, that oscillating saw has made this rebuild possible!
 

ACon977

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Nevermind.....

Thanks Froggy! I unfortunately dont have one of those, although it would be really handy I would bet. Ive been spending more than what I would like on tools recently.. but this is now on my list of things to pick up.

thanks for following along and commenting!
 

ACon977

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yep, still here...pass the popcorn. one of my favorite threads.

Thanks Tim! Glad to see that you are still out there! Need to keep momentum forward so that one day my boat can look 60% as good as yours haha
 

ACon977

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Very nice work. Still lurking, watching your progress, living vicariously through you as you document your journey. Keep it coming!

Thanks! Feel free to lurk or throw out a random comment or question! I try to use this thread to keep me thinking about this every day and have motivation to keep going! Glad that you're enjoying, I'll keep pushing through!
 

ACon977

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Progress looks good - love the pics!

Thanks! Progress is slow, but I've had a bit of momentum recently with this nice weather and not traveling.

I think the pics are key! there is no such thing as a wasted picture anymore, plus I want this thread to be able to help someone else who wants to do their rebuild.
 

ACon977

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Question for the pros.

I did one layer of CSM and one layer of cloth to attach the floor to the walls of the hull. Do you guys think I should do another layer? or will one be enough.

It feels pretty dang strong now, but this is where there will be a bit of flex as the boat hits waves and people are jumping in and out
 

archbuilder

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I would do at least 2 layers. I did either 1 or 2 layers of CSM and 1 layer of 1708. My other boat is 2 layers of CSM and has held up great. I did add an extra layer of tabbing around d the edges.
 

ACon977

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I would do at least 2 layers. I did either 1 or 2 layers of CSM and 1 layer of 1708. My other boat is 2 layers of CSM and has held up great. I did add an extra layer of tabbing around d the edges.

Sounds good. Although surprised that you only used CSM. that typically doesnt have a ton of strength. But I will plan on doing another layer of CSM and Mat on the transition.
 

ACon977

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Also looking for foam recommendations now. 2# foam is what I believe I need, but when I went to buy it from my fiberglass supplier it was more expensive than resin! Is that real?

also, how much would you think I would need? 4-5gal? I dont have a great reference.
 

archbuilder

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I think a lot of people under estimate CSM. When I did Miss Morgan's restore I only used CSM. She has been used hard for years now and no issues. Also the deck glass is mainly a waterproofing in most cases.

I used areomarine for my foam, nice people. As a guesstimate you can calculate the approximate volume of foam. I also called them for recommendations. It is expensive. The actual yield is driven by how warm the foam and hull are. I set the foam jugs in hot water to warm it up. The warmer the more yield. It fires off very quickly. Have your act together! I use a funnel to pour it in.
 

Woodonglass

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1 gallon of Part A and One Gallon of Part B 2# foam will fill about 9.5 cubic feet. Soooo if you measure the Areas needing filled, you should be able to come pretty close on guesstimating your needs.
My Guess-ti-mate would be approximately 3 gallons of each to do a 18 ft boat.
 

ACon977

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I think a lot of people under estimate CSM. When I did Miss Morgan's restore I only used CSM. She has been used hard for years now and no issues. Also the deck glass is mainly a waterproofing in most cases.

I definitely agree with you about the waterproofing, thats what I did to the bottom of my deck. and very interesting about you using only CSM for your build, I have just followed the herd on here with Cloth being stronger, but hey, if it has worked, then thats pretty sweet.

I used areomarine for my foam, nice people. As a guesstimate you can calculate the approximate volume of foam. I also called them for recommendations. It is expensive. The actual yield is driven by how warm the foam and hull are. I set the foam jugs in hot water to warm it up. The warmer the more yield. It fires off very quickly. Have your act together! I use a funnel to pour it in.

Ok very nice, I may give them a call today. If its still expensive, I may just go to the local dealer and pick some up due to shipping costs and convenience.

Warm the cavity is what ive heard over and over on here as well. Plus have your act together lol yea, Ive seen how much this stuff kicks off. definitely dont want to have it going all over the place. Ill be ready.

Good call with the funnel.
 

ACon977

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1 gallon of Part A and One Gallon of Part B 2# foam will fill about 9.5 cubic feet. Soooo if you measure the Areas needing filled, you should be able to come pretty close on guesstimating your needs.
My Guess-ti-mate would be approximately 3 gallons of each to do a 18 ft boat.

Gotcha! Well this is helpful, when I tried to do a rough calculation before I was really far off and didnt really know what to do. I think I may buy 2-3 gal kits and see where we go from there!

Thanks for the help WOG!
 

archbuilder

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I did use 1708 on my latest build, just didn't have any on the first. all the factory stringers I don't actually recall seeing any 1708 on a hull / stringers / transom I have worked on. Mostly looked like CSM or roving. That being said no reason not to use 1708.

if you do loose control of a pour and spill it on the deck, let it dry and scrape it up. Cleaning it up wet is an even bigger mess!
 

ACon977

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if you do loose control of a pour and spill it on the deck, let it dry and scrape it up. Cleaning it up wet is an even bigger mess!

This is smart thinking. Glad to hear it now. Seems like I would try to clean it up wet and just end up smearing it all over the deck. Advise taken.
 

ACon977

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Btw I did end up going to the fiberglass store and picking up 2x 1 gal kits of the 2# foam. I may need to end up using 3, but figured I would rather not have extra expanding foam lying around
 

chevymaher

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Btw I did end up going to the fiberglass store and picking up 2x 1 gal kits of the 2# foam. I may need to end up using 3, but figured I would rather not have extra expanding foam lying around

LOL I got what you ordered left over. layin around here.
 
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