1972 Signa Echo-teardown and rebuild

[tri-hull guy]

ok so i finally got some time cleared up and money saved to begin my first figerglass boat rebuild. this weekend we gutted the entire boat and we were greeted with about 1000 lbs of ice, water and wood that had rotted right through. a lucky surprise is that the stringers seem to have been redone already and are completely solid. after reading many posts on here i expected to see three 3/4 inch playwood stringers when torn up but it had a ladder type frame in it just glassed to the floor on the edges but not even touching the bottom of the boat in the middle. this seems good for water passage but does that make much diffrence structurally? cant wait to hear everyones input!

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

also im trying to figure out how how resin and fiberglass(and type of glass) ill need to put the floor door. any idea? 16 ft long

 

[oops!]

Re: 1972 Signa Echo-teardown and rebuild

hi ....welcome to iboats fellow canuck.....

as far as the stringers....well, you can build them like that
it is strong, but it is also unnecessary weight.

the other thing is that the stringers need to be glassed in.
glassing in the stringers will add the rot proof, and the structural integrity you will need.
just glassing in the few inches of contact of the stringers will hold. but if the hull suffers twist, or flex, the chances are great of a hull / stringer separation.

click the link in my sig for pics on how to glass the stringers in. as well it will tell you what kind of materials to use on the stringers.

as far as the deck goes...

this link is a how to on deck replacement with every thing you need to know.

http://forums.iboats.com/showthread.php?t=522237

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

thanks that is going to help a ton!

 

[Bondo]

Re: 1972 Signa Echo-teardown and rebuild

as far as the stringers....well, you can build them like that
it is strong, but it is also unnecessary weight.

Ayuh,.... Don't look like they drain very well either,...

As ya design yer new lay-out for yer stringers,... Think Drainage....

Water will get under the deck, no way 'round it...
Plan for Drainage, so ya can pump it outa the bilge pit...

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

i have already planned to put a bilge in the last section of the stringer at the back and use ridged foam insulation in the rest leaving room at the bottom for drainage. thanks thho alway appreciate other peoples idea and input

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

now looking at plywood prices right now and marine grade is def out of my price range. what is the cheapest acceptable wood i can put down to use for the floor and decking

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

one more question , has anyone ever tried to frame the decks(not bottom deck but a casting platform like on a bass boat) on a boat with pvc? would this break in the cold or while hitting large waves? i ask only because it seams like an easy light way to frame something.

 

[Bondo]

Re: 1972 Signa Echo-teardown and rebuild

now looking at plywood prices right now and marine grade is def out of my price range. what is the cheapest acceptable wood i can put down to use for the floor and decking

Ayuh,.... CDX....sheathing.... covered in glass, 'n resin of course...

'n wood framing is stronger, without any more weight...
Pvc is a Bad idea...

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

i am def going to fiberglass and resin the floor, but i would like to just resin the deck and then put on a roll on grip bedliner paint for a finish instead of glass, im told it is completely water proof and would seal and be a good finish product. do see foresee this to be a problem?

 

[JDA1975]

Re: 1972 Signa Echo-teardown and rebuild

I have heard mixed reviews on the bed liner products, but think if you keep it to the deck only, and do not apply to any the hull it should work OK, if you ever find the need to tear out and redo, that bed liner is supposedly an awful mess to clean up. maybe mask off the edges and keep a clean 2" line of painted fiberglass around the edge of deck and then do a matching liner color on the rest

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

hey there,call out to my fellow Canadians, i was just thinking about ordering some stuff from us composites , i was wondering if they ship to canada and if so what are the shipping prices and avarage wait time?

 

[Bondo]

Re: 1972 Signa Echo-teardown and rebuild

i am def going to fiberglass and resin the floor, but i would like to just resin the deck and then put on a roll on grip bedliner paint for a finish instead of glass, im told it is completely water proof and would seal and be a good finish product. do see foresee this to be a problem?

Ayuh,... Unsupported resin will just crack, 'n blister...
It needs Cms, 'n/ or cloth to support it...

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

the resin is to to seal the wood

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

just bought my plywood for the floor , going to get my resin ,csm, and woven tomorrow. the cost is a bit more then expected for thesse materials. I just keep thinking of the fishing ill be doing this summer

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

I read the thread on how to put in the floor and it recommends using 2 layers of 1 1/2 oz csm and 1 layer off 6 oz woven cloth, can i do just one layer of csm? the 10 yrd one just wont cover twice and i cant really afford 2.

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

ok so i need to get the fiberglass stuff tomorrow how many yards of woven do you think i will need to cover just the floor?i will double that for mat . also how much resin should i need. keeping in mind im not doing the transom or stringers just the floor? thanks sorry for all the questions just dont want to mess up or over buy.

 

[Woodonglass]

Re: 1972 Signa Echo-teardown and rebuild

ok so i need to get the fiberglass stuff tomorrow how many yards of woven do you think i will need to cover just the floor?i will double that for mat . also how much resin should i need. keeping in mind im not doing the transom or stringers just the floor? thanks sorry for all the questions just dont want to mess up or over buy.

Read this... It will get you pretty close to what you'll need


http://www.fiberglasssite.com/servlet/the-68/Fiberglass-Information,-and-How/Detail

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

thank you that was very helpful!

 

[tri-hull guy]

Re: 1972 Signa Echo-teardown and rebuild

well just bought all my glass stuff! i wont be able to sleep till this weekend when i get it down!!!