1974 SC 16' Hull Repair project

[Sheetmetal]

Well I've owned the boat for a year and a half and have decided to look for where the leaks are coming from. I yanked out the floor, it was "spongy" in more than a few spots. Then I put the boat in the lake and jumped in to mark all the leaks. I found that most of the leaks were around where the trailer rollers came into contact with the boat which kinda makes sense. I just finished wire brushing the rivets and such when I came across a hole about 1/8'' diameter in the hull. it looks like the aluminum had some acid or something corrosive perhaps in the area of the hole. I also found more areas on the hull with these corrosion marks. YIKES. how should I fix these "weakend" areas? Pics will be coming as soon as I figure out how!

 

[oops!]

Re: 1974 SC 16' Hull Repair project

Hi SM

Welcome to iboats.....

I think you will find lots of good friends here.

Tons of tinnys being done......some really great work....check out the starcraft forum at the bottom of the main page. in the manufacturers forum.

As far as posting pics....

there are detailed instructions in the non boating tech forum.

but in short.....up load to photo bucket....resize to 640x 420 something or other....and copy the img tag....then paste it in your reply.

Cheers.....and welcone to iboats !
oops

 

[oops!]

Re: 1974 SC 16' Hull Repair project

OH.....by the way...

How is the weather up there....it is really warm here....rained yesterday !

there are lots of hockey threads during the world jouniors in dockside chat.....grab a sody pop and join in the fun!

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

Here she is!

 

[Woodonglass]

Re: 1974 SC 16' Hull Repair project

Most of the tinny guys on here Re-buck the leaky rivets, wire brush everything, wipe down with aceteone, and then coat everything with an epoxy product called Gluvit or Coat-It. Since they are both epoxy based they will need to be coated with something to get UV protection. Small holes can have a rivet placed in em, or some JB Weld seems to do the trick too. Do a forum search for Gluvit or Fixing leaks in Aluminum boats and you will surely find a plethara of threads to give you lots of reading and information.

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

View from on high

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

just a pin hole but she fills up quick out on the lake

 

[Woodonglass]

Re: 1974 SC 16' Hull Repair project

Either drill it and rivet it, or wire brush it & JB Weld it then Gluvit over everything when she's all clean and "Purdy"!!!!

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

OH.....by the way...

How is the weather up there....it is really warm here....rained yesterday !

there are lots of hockey threads during the world jouniors in dockside chat.....grab a sody pop and join in the fun!

We've got about 12 inches of snow on the ground and thats after a warm spell, had a good 16 inches before that. We have a backyard rink for the kidlets to sharpen up there techniques! Look out NHL!! It's 26 degrees F here and raining

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

old rotten plywood. should be alright yet for templates.
I'm finding it difficult to source out the proper rivets for the hull. anybody have the specs for the rivets that should be used?

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

I'd like to purchase some gluvit and I was wondering if 1 quart would be enough for a 16' boat?

 

[jasoutside]

Re: 1974 SC 16' Hull Repair project

Yup, hit just the rivets and seams though.

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

Thanks jIordered a box of rivets, so as soon as they get here I'll start replacing the bad ones and re bucking the lose ones. Do I apply the 5200 before installing the rivets or coat them after?

 

[jasoutside]

Re: 1974 SC 16' Hull Repair project

Here ya go...

Countersink...
http://i543.photobucket.com/albums/gg451/jasoutside/Starcraft Islander/P1040925.jpg

Drill through...
http://i543.photobucket.com/albums/gg451/jasoutside/Starcraft Islander/P1040926.jpg

Coat with 5200...
http://i543.photobucket.com/albums/gg451/jasoutside/Starcraft Islander/P1040931.jpg

Drive home...
http://i543.photobucket.com/albums/gg451/jasoutside/Starcraft Islander/P1040932.jpg

Then epoxy over the whole works feathering out so it's nice and flat.

Cheers

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

well i just got the boat lifted off the trailer and now its off to the welding shop to get some brackets mounted to convert the trailer from rollers to bunks! we travel on a lot of gravel roads up here to get to the lakes and I found that all the leaky rivets were right where the boat came into contact with the rollers.

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

After a helping hand from the FIL we got all the rivets that needed replacing, replaced. The gluvit is also curing right now! this next week I hope to insure the trailer now that it's back from the welding shop, and take the boat to lake and test for leaks before installing the new floor.

 

[64osby]

Re: 1974 SC 16' Hull Repair project

Sm - sounds like great progress. Good luck w/ the next leak test. My last one was successful, I had lots of leaks, Gluvit is my next step.

 

[Sheetmetal]

Re: 1974 SC 16' Hull Repair project

So I picked up 3 sheets of 3/4" marine grade plywood! Now I have to track down some styrofoam, or pool noodles.