Grew St170 restore / repair

[wreckingball]

So I figured with all the wiring that has to get redone and the transoms and finally the interior , might as well start a project and hopefully finish this year to see if it flys

 

[wreckingball]

so progress on day 1 of stripping

 

[sheboyganjohn]

Looking at the pictures, you do have stringers under the main floor. It also looks like you will need to separate the top from the hull to properly get at that transom.

 

[wreckingball]

made so progress today have the next 2 weeks of work so hoping that the weather holds up and i can change my transom

 

[wreckingball]

[No message]

 

[wreckingball]

HELP>>>>Cut or Pull apart ??

hey guys so i have my boat ready to be separated but the front is still holding tight , am i missing something ?? or should i jut the back off ? then fix my repair then glass a strip over the cut

 

[wreckingball]

day 2 complete

 

[wreckingball]

day 2 complete

 

[sheboyganjohn]

So it looks like it was that small section of floor in the bow that was holding it in place. Good plan on just cutting around it. Should not be too bad glassing it back together.

While you have it apart be sure that at a minimum you do some exploratory drilling in the stringers. It would suck to do all that work and then find the floor is going in another year or two. You can patch up the test holes while you are doing the transom.

 

[wreckingball]

Thanks for the advice , I'm now just trying to figure out how to remove the wood in 1 piece and use it as a template or as much as possible

 

[sheboyganjohn]

Transom does not need to come out in one piece. Look here on how to pattern a new one.

 

[Woodonglass]

Yeah best way to remove the old wood transom core is to set your circular saw at just shy of the thickness of the wood and cut a horizontal and vertical 2" grid in the wood. Then use a 1 1/2" wood chisel to chisel the 2" blocks off the outer skin. Do a bit of final grinding and VOILA' you're ready to pattern for the new one.

 

[wreckingball]

will try it in the morning , thanks guys
also anyone know if the transom go to the floor or would it be cut out around the stringers

 

[sheboyganjohn]

Don't know about your particular boat, but all I have seen cover the entire transom even behind the floor and stringers.

 

[wreckingball]

Got the transom out and found this under and behind? anyone know what this is ? was hoping to just do the transom this year and then do the floor , what do you guys think ?

 

[wreckingball]

Day 3 Transom is out and surprise

 

[AShipShow]

That thing in your hands would be wet flotation foam

Lots more of it on the other side of your stringers under the floor. Probably making your boat weight a couple hundred pounds more than it should.

 

[wreckingball]

That thing in your hands would be wet flotation foam

Lots more of it on the other side of your stringers under the floor. Probably making your boat weight a couple hundred pounds more than it should.

Thanks so should i rip the floor up and change the rotted / wet foam this year or do you think it will still float asis

 

[AShipShow]

Floation foam isn't what makes your boat actually float. Its a coast guard requirement for certain size boats in case they take on water that they remain boyant and don't sink. That being said, your wet foam probably isn't going to serve that purpose when saturated.

From what I see in your pictures, you should be removing your floor, stringers, transom, and redoing all of them. Then reinstall 2 or 4lb polyurethane foam back in the cavities when you are done. A secondary benefit of the foam is higher density foam will actually provide additional structure to a boat

 

[Woodonglass]

NOTE: You, as a backyard boat builder, are NOT required by the Coast Guard or anyone else to put the foam back in your boat. The foam is not what makes the boat float it will float just fine without the foam. Having said all that, It is HIGHLY recommended that you DO replace it. #1 reason is a boat with NO flotation foam will sink to the bottom if the hull is breached. If it's foamed, it will still have issues but...It won't go to the bottom. Safety is Always the #1 issue when boating so, get rid of the waterlogged stuff and replace it. With proper care and maintenance it WON'T get waterlogged again.