Hull damage by blown trailer tire

kamakazie_1

Cadet
Joined
May 11, 2010
Messages
20
Good morning all,

I've done a search and read hundreds of the repair posts but don't see anything quite like this, I know it happens we see it all the time here in Florida. Here's my question, I'm restoring a 1988 Hurricane Deckboat, the stringers and transom were toast, soaked and holding the entire world in water. My son and I have pulled all of that for replacement. At the moment we have the hull interior down to the a clean hull and the hull itself turned over for repair of small spots and bottom painting. The previous owner some where along the way had to of had a blown trailer tire and the tire before he could stop stripped the gelcoat and got into the hull just a little, not all the way thru.. In the process the tire being an oil based product and flipping at high speed has left it's residual in and around the 8 inch or so blemish on the outside of the hull. Common sense tells me not to leave any oil residual there when glassing.

What would be the best way to remove this embedded residual and prep this area for repair? Sanding seems to smear it and wire brush does about the same. Before I get to far into making it a bigger mess any thoughts from the authorities out here??

thanks,

RJ

1988 Hurricane 196 FunDeck Restoration Project PICs
 

Woodonglass

Supreme Mariner
Joined
Dec 29, 2009
Messages
25,929
Re: Hull damage by blown trailer tire

Welcome to iBoats!
Nice Project. This iBoats thread might interest you...
http://forums.iboats.com/showthread.php?t=471173

As for your tire damage, I'd recommend Mr. Clean Magic Eraser. If that doesn't work try acetone and a wire brush.
I LOVE Father - Son projects and hope you continue to post your project here on the forum so I can follow along. Be glad to help with advice when and where I can.


WelcomeAboard.jpg
 

kamakazie_1

Cadet
Joined
May 11, 2010
Messages
20
Re: Hull damage by blown trailer tire

Thanks Woodonglass, it's been two years sitting in the yard but finally got my boy to come over and start working on it.. Of couse he thinks he's going to get it done by scallop season, personally I'd be happy if we could get it done by shimp season the end of this year.. My skydrive pics will be full of pictures by the time we get done.. There's a whole lot of good info on here, I'm here to stay..

RJ
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: Hull damage by blown trailer tire

just grind it....

a 24 grit with a rubber backing pad will erase it problem in seconds and prep the area for a glass/gellcoat repair
 

kamakazie_1

Cadet
Joined
May 11, 2010
Messages
20
Re: Hull damage by blown trailer tire

Thanks Oops!, I went out there this afternoon and futzed around with it a little more, I used some heavier paper and it seemed to be coming off better after the sun got on it...

On our way to getting it in the water finally...

RJ
 

kamakazie_1

Cadet
Joined
May 11, 2010
Messages
20
Re: Hull damage by blown trailer tire

Hey woodonglass I know this has been probably asked and answered a million times.... BUT...I was looking at wood today locally.. my transom measured just a hair under 2 inches I can get 1 inch marine grade for 118 for a 4x8 sheet, is that a good price?? Also my stringers measured 6 inch on the outer and 10 inch on the inner, I don't really like the multiple piece of 96 inch plywood cuts for the stringer construction. Can spruce be used for the stringers since I can get a couple of 1x6x12 spruce pieces for the outer and 1x10x10 for the inner stringers pretty cheap and have them all one piece wood??

RJ
 

GT1000000

Rear Admiral
Joined
Jul 13, 2011
Messages
4,916
Re: Hull damage by blown trailer tire

Hi RJ, Welcome...

Nice lookin project, I'd like to come aboard and watch and help where I can...

As far as your transom, double check your measurement because it should be 2 inches thick Including the inner and outer skin of the hull and cap...which would make it only 1-1/2 inches of plywood, plus approximately 1/4 inch for the cap/splashwell, plus 1/4 inch for the hull...

You could do the transom in choice of AC fir exterior Grade Plywood or Marine Grade Plywood...either one will work fine since it will be completely encapsulated in fiberglass resin and cloth/mat...

I will let the more knowledgeable guys fill you in on whether or not you can use spruce, but I made a laminated blank for my stringers out of two sheets of 3/8 inch AC fir ply...it ended up 16 feet long, 2 foot wide, by 3/4 inch thick...

Here's a couple of pics to give you an idea...


DSCF1466.jpg



DSCF1470.jpg



DSCF1479.jpg



And a pic of the stringers I made out of the blank...


DSCF1532.jpg



Have fun and Best of Luck!
 

kamakazie_1

Cadet
Joined
May 11, 2010
Messages
20
Re: Hull damage by blown trailer tire

Hey GT, I measured before we started cutting it all out at the top where the plywood end was exposed and I kind of fudged a little for the outer hull and the inner fiberglass and it was like an 1/8 shy of 2 inches... The marine grade plywood is like 15/16ths really so two of them would be about right.. Hey in your last picture where the bottom of your boat was all lightly colored did you sand all that down and with what ??

I left a little of the groves where the old stringers were so I'd have something to go back exactly in the same spot.. is there a pro and or con to leaving the small ridges where the old stringers were at?? When you put the stringers in do you actually bond them to the bottom and then set the fiberglass in??

RJ
 
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