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Marine Plywood

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 11:58
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Optics Jedi Knight
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     Checking just about everywhere in Oklahoma for even a scrap of 3/8's marine grade plywood and it can't be found. To far from the ocean I suppose. I need 2 pieces 10"x 36" in size. It is looking like special odering a single sheet and paying outrageous freight may be the only answer unless someone can be found with access to 3/8'marine grade plywood. If needed I will pay for a sheet. You cut off what I need and you can keep the rest. It would be cheaper than the freight for a full sheet. I am needing it to replace the outside transom board on 2 early 70s FD Alumacraft fishing boats that I am restoring.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 12:13
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Georgia peach

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Just cut a piece of 3/8 ply wood and coat it with polyester resin. We have done it a few time with poone toone boats...LOL yes I spelled it like I say it.. It work very good.


Here is a helpful link

http://www.ehow.com/how_10053007_make-marine-plywood.html


Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 12:59
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Optics Jedi Knight
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Since this board is used to cushion the hull from the abrasion of the outboard. It gets bruised and scuffed. Varnish will not protect enough to keep the moisture out leading to the plywood prematurely separating. Using the wrong plywood when it was replaced before was the problem on one of the boats. On my boat it deteriorated from 40+ years of exposure.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 13:08
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Georgia peach

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well, I tried. Good Luck.

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 13:26
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Dark Lord of Optics

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I am sure there is plenty of around where I live.

I can pick up a couple of pieces and send them to you, I suppose.  

However, a brief search suggests that there are a few marine plywood suppliers in Oklahoma.  I am sure you checked with them, but just in case:

 Cedar Creek Lumber, 405-947-6900 - L
* Oklahoma City - Paxton Woodcrafters' Store, 1815 S. Agnew Ave, 73108, 405-235-4411 - L
* Tulsa - Paxton Woodcrafters' Store, 8309-C E. 68th St., 74133. 918-459-8888 - L

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 14:02
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bowsNbugs

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I can check around here if need be. Please advise if necessary.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 14:32
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Optics Jedi Knight
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The supplys in OK are 3/4" and 1/2". I am not secure of the integrity of taking the 1/2" and planning it down to  3/8" It may be what I have to do. I never want to do this again.  M&M is only a block away. Cedar creek is Wholesale only warehouse . I asked if they could tell me who they supplied and was told longer stock Marine plywood. I have spent most of a week looking for all the parts needed. I thought the solid rivet's would have been the hard part and not the plywood. The box stores have all but wiped out the do it yourselfer's.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 17:17
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Optics Jedi Knight
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Hope you get your wood Lile.  Gotta ask BD, what the hell is a Poon Tang boat?
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 17:17
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Dark Lord of Optics

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Lile,  how about we do this: if you find some place around here that has the plywood you want, I'll be more than happy to go buy a piece, slice it up into sizes you need and send it to you.

ILya
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 18:59
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Optics Jedi Knight
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I was thinking that Graham might have a little left over from the boat project he did last year. Still may try to plane a piece of 1/2". At least the 1/2 I can get is made with the water proof glue, If I seal the whole thing with tung oil it may hold together. I have to R&R 24 rivets to remove the tray brace.
 These pics are not my boat but shows what I am replacing.


My boat has a 2013 20HP Suzuki 4 stroke. This shows the area for the back plywood.



The interior transom board will be 1 1/8" Cypress. It was originally western Cedar that had dry rot.



This is the seating layout.
 With 2 people and gear the boat will reach 26 mph by GPS where the rev limiter cuts in. I may take the prop from a 10" pitch to a 11" pitch. Hope to lower the RPM to run beneath the rev limiter.  Last week it ran 26 miles on less than 2 gallons of gas.  I can't imagine putting a 40 HP on the boat. Even though it is rated up to a 40 hp. Loco

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/02/2014 at 19:17
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Chief Sackscratch

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I don't have any 3/8 plywood left but if you can't source it locally I'll be glad to run down to the store and get it.  Just PM me.  Not sure what shipping it would be like on it due to the od size but shouldn't be to bad.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 05:58
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show me your sheep!!

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I'm wonder where in the world Lile ever found time for this project?!?!?!?!
 
Sounds like a fun project!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 07:44
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Chief Sackscratch

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I have access to cedar and cypress if you'd rather have that Lyle, my uncle has a saw mill and I can get pretty much any thickness you'd want for that.  Just have to  find if he's got any that will fit your size needed.
 
If its 10" wide by 36" long no problem,  if you need 36" wide by 10" long that could be an issue finding a tree over 3" in diameter with usable  center.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 09:47
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Optics Jedi Knight
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The 10"x 36" is the 3/8" Marine grade plywood. Just to keep it more simple I will try to plane down the 1/2" to 3/8 and hope it will not degrade the integrity of the piece. This piece is only there as to protect the back of the boat from the outboard.

 I have the Cypress for transom brace.



Edited by 3_tens - October/03/2014 at 09:59
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 09:57
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Optics Jedi Knight
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  Bud as for the time. Since the government has placed the 6 month moratorium on foreclosures across the board. Things here are dead.  The mortgage company's must prove that the clients in foreclosure do not have good credit, and are not able to restructure the loan.

 (Once foreclosure is filled the clients credit is trash to where they couldn't finance a box of Cheerio's)

Obama don't understand this. (DING DING DING!) But it keeps all the houses off the market until after the election.    The true reason revealed.      At this time, inventory is under 30 houses. Time is avaliable to complete projects. It may be possible to go hunting this year.  The flood of the backlog should hit after thanksgiving or the first of the year.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 11:55
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Chief Sackscratch

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Originally posted by 3_tens 3_tens wrote:

The 10"x 36" is the 3/8" Marine grade plywood. Just to keep it more simple I will try to plane down the 1/2" to 3/8 and hope it will not degrade the integrity of the piece. This piece is only there as to protect the back of the boat from the outboard.

 I have the Cypress for transom brace.

 
Ok.
 
Just make sure the plywood you have is truly marine grade treaded, some treatment doesn't penetrate like it is suppose to and planning it down would expose untreated wood.  Quality ain't what it use to be.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: October/03/2014 at 13:01
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Optics Jedi Knight
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10-4 on quality. The Marine 1/2"& 3/4 here does carry the Loyds approved stamp. The Tung oil will penetrate deep if it is kept from drying to soon. Not my first choice. Then again, It will likely last the rest of my life.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/06/2014 at 16:24
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3/8" plywood arrived yesterday. Got home at 10:30 stopped at the barn sawed it out, sanded, and had a coat of oil finish on it by 11:00. This morning applied a 2nd coat. I was lucky. The  temps dropped into the 30's. This allowed the oil to penetrate but not dry so the second coat should penetrate even deeper.

Before and after shot of the inside oak board that I replaced




This is the new back plate I started on the drying stand .



Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/07/2014 at 08:41
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Chief Sackscratch

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nice.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/07/2014 at 11:23
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A well done job Excellent
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/07/2014 at 15:32
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The rivits came in today. As soon as the oil finish drys to touch I can start the reassembly. It has been in the low 30s at night ond only mid 50 this week so drying has been slow.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/07/2014 at 21:10
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show me your sheep!!

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nice looking stuff sir!  I hope it lasts!
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/07/2014 at 23:42
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Originally posted by 3_tens 3_tens wrote:



 I can't imagine putting a 40 HP on the boat. Even though it is rated up to a 40 hp. Loco



Just read this thread. And looking good.

And just an FYI. Since your boat is from the 70s I would not put a motor from the mid 80s on that is rated at 40HP. That is too much HP. Back in the 70s motors were rated at the crank and sometime in the 80s they changed and were rated at the prop. I found out the hard way since I had a 76 Starcraft Super Sport rated at 150HP. And in 85 I upgraded my motor to a new Yamaha 150HP and after awhile I had issues with the transom coming apart. I then found out that the new 150HP that was rated at the prop was like a 175HP at the time the boat was rated in 76 at the crank.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: November/08/2014 at 05:51
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Optics Jedi Knight
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My Dad had the same boat with the 1970 20 HP Johnson. I had it by stopwatch doing 20 MPH between 1 mile bouys. The Suzuki will do 26 on GPS at the rev-limiter. I feel no need to go faster. If there is only one person and not much weight in the front of the boat, it wants to porpoise after 23mph.
Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: March/23/2015 at 08:02
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Optics Jedi Knight
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Finally got the little Alumacraft put back together after rebuilding the transom last weekend.
New Back


New back brace



Built a swing mount for the depth finder.


Hooked it up for a test run on the pond.


Take off at full throttle.

 I can go 4 seconds before having to shut it down.


 Put it on the pond yesterday for a test run. I can go 4 seconds before having to shut it down. 
Then it was time to put the toys away and go to the Grand kids and Great grand kids birthday party.


At the end of the day drove home into the setting sun.

 
It has been a great weekend.

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