hull extension in progress with pics

Status
Not open for further replies.
Joined
Sep 30, 2008
Messages
12
Re: hull extension in progress with picks

Re: hull extension in progress with picks

hey oops looking good on your project, gives me alot of inspiration, just a quick note when you did the floor did you use PT plywood or regular plywood. I was reading a fiberglass internet store site and they advised not to use PT with resin, I am wondering is this cause of the wood being soaked by the treatment? any ways, I have not given up on you, something will come along just keep your eyes and ears opened.

thanks charles
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

the only reason i used regular ext plywood on my deck is because my framers cut up all the ply wood i had drying for months.......in a glass boat, pt wood is the way i would go all the way.
all the under side of the deck on my boat is pt encapsulated in glass.

the reason the site said not to is because pt is wet when you get it.....it needs to be dryed for a long time or it wont take resin properly.....

the other factor is that when pt drys ....it warps.....so you run into a catch 22 situation.....but if it is dryed for a long time flat....it is one of the best deck woods out there.....it can sit in water for 40 years without rotting.....once encapsulated in glass....double that life span....

i have read on this site that 4x4 pt posts rot at the surface contact area (the point between above ground and below ground) in a few years....thus negating the benefits of the treating.....but what is not factored in, is the microbial life forms that are at the surface of the dirt eating the wood.

but, in a boat its different. real surface dirt and life forms are not as much as an issue.

as far as ext grade........ its just below marine.....and lots cheaper......there is more voids between the plys.....it has less plys than marine.......and a slightly different glue than marine.....it also needs to be dryed....at least a week !

BUT..........once encapsulated in glass....it will last 20 years with regular care....more if great care is taken.......the exact same time period as marine ply.....once the marine ply is infected with rot.....it will take slightly longer than regular ext ply to collapse....but not much.....
so .....imho.....if the budget is tight and the time factor is also tight.....use ext grade ply.

boats are a trade off.....use this....and you loose this......
in a glass boat where there is no aluminium.....i highly suggest pt ply....if you have the time to dry it properly.....if you dont....then go ext ply......imho....marine ply does not give the benifits vs cost......
the difference being 6 months over 20 years !

wow.....was i on a rant? :D...please forgive me......


but imho.....thats the difference between the different basic choices of ply wood.

im gonna get killed by the members now.......:eek: :eek: :eek:

i hope that helps

cheers
oops
 

GO OVRIT

Seaman
Joined
Jul 2, 2008
Messages
74
Re: hull extension in progress with picks

Re: hull extension in progress with picks

A side note on the 4x4 pt wood: If you ever cut it take a look at the end you just cut. Almost every one I cut is only 40-50% penetrated with the chemical treatment.:eek:
 
Joined
Sep 30, 2008
Messages
12
Re: hull extension in progress with picks

Re: hull extension in progress with picks

NO no I don't mind just, thanks that was what I was wanting to hear. It will be this spring before I start just wanting to get all my little ducks in a row before I start the put it back to gather, thanks for your time hope you can get a place soon. still have to get the glass and resin and ply, funding has to build up.
thanks
charles
 

bailey

Petty Officer 2nd Class
Joined
May 17, 2007
Messages
103
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Oops I have been following your resto from day 1 with great interest.With regard to you wanting to get the hole cut in the transom, its got me thinking,aren't you jumping the gun a wee bit,please bare with me. I understand the X dimension being somewhat critical, the use of the "alignment tool" for your engine and the"I/O" etc. etc. now if everything aligns up and heaven forbids when you drop the engine on the mounts that are attached to the boats "stringers" how would one go about adjusting everything if an alignment problem should happen to occur. Do you "shim" the engine on the mounts to move it up if it's too low, do you somehow lower the "mounts" too compensate if the engine's too high in other words are you "locked in" because of the position of the "I/O" on the transom. How much leighway do you have with the "I/O" with respect to the "x dimension".

Bailey
 

MERIT6419

Petty Officer 3rd Class
Joined
Sep 3, 2008
Messages
89
Re: hull extension in progress with picks

Re: hull extension in progress with picks

oops GO OVERIT
I rebuilt/added onto my deck on my house this summer and in the manner of trying to save a penny here and a nickle there I inspected the exsisting posts at ground level because if there is rot that is where it should be right... well I left two posts and got rid of most primarly because I was taking a deck that was all on the second floor and makeing it a first floor deck I kept the two posts for the stairs going to the second floor house entrance. Anyway the post looked great but when I went to screw into it the screw would go in but not tighten up so i cut off the top of the post to rail height and the entire center of the post was rotten totall gone for about 4 feet outside was fine but that center that never gets treatment gone. well so much for saving money. short cuts always bit you in the end. how come you did not put a cedar floor IN?
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Oops I have been following your resto from day 1 with great interest.With regard to you wanting to get the hole cut in the transom, its got me thinking,aren't you jumping the gun a wee bit,please bare with me. I understand the X dimension being somewhat critical, the use of the "alignment tool" for your engine and the"I/O" etc. etc. now if everything aligns up and heaven forbids when you drop the engine on the mounts that are attached to the boats "stringers" how would one go about adjusting everything if an alignment problem should happen to occur. Do you "shim" the engine on the mounts to move it up if it's too low, do you somehow lower the "mounts" too compensate if the engine's too high in other words are you "locked in" because of the position of the "I/O" on the transom. How much leighway do you have with the "I/O" with respect to the "x dimension".

Bailey


really good question bailey.......

first of all......the hole determines the height of the anti cave plate....and the x dimention is the crankshaft centerline.....and the cut out is the height of the ventelation plate.....

the vent plate height is crutial to the perforamance of the boat.
while the x dimention will be determined by this hole.....

ie hole up....x dimension higher.....
the crankshaft centerline height will be aligned by shims and plates....as well as left to right adjustments......if i have to lower the mounts...(i wont) it will require a grinder :eek:

as far as the leighway......i have 4 ins side to side....and as high as i want to go......(shims)

thats why in building a motor cage....and for that fact boat building in general, its best to duplicate what is there...(but us back yard boyz like to make it better ;)


hope that answeres your questions

cheers
oops
 
Last edited:

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

oops GO OVERIT
I rebuilt/added onto my deck on my house this summer and in the manner of trying to save a penny here and a nickle there I inspected the exsisting posts at ground level because if there is rot that is where it should be right... well I left two posts and got rid of most primarly because I was taking a deck that was all on the second floor and makeing it a first floor deck I kept the two posts for the stairs going to the second floor house entrance. Anyway the post looked great but when I went to screw into it the screw would go in but not tighten up so i cut off the top of the post to rail height and the entire center of the post was rotten totall gone for about 4 feet outside was fine but that center that never gets treatment gone. well so much for saving money. short cuts always bit you in the end. how come you did not put a cedar floor IN?


cedar wont hold screws....and cedar plywood is just a thin laminate.....actually in a lot of plywood..(depending on where it comes from)..mahogany is used...and mahogany is a really good boat building material.

tashas daddy has had simelar experiances with pressure treated posts....he says they are ka ka !....
pt ply however....being thiner than the 4 inch posts is fully impregnated with the treatment.....(as you can see when you cut it)
so for boat biulding it is fantastic......AS LONG AS YOU ARE AWARE OF THE CONS OF USING IT.....AND THEY ARE MANY.
 

MERIT6419

Petty Officer 3rd Class
Joined
Sep 3, 2008
Messages
89
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Just a thought here but if oops needs to check alignment and such he might want to think about getting a plastic mock up motor from P-Ayr you can bolt on heads and mount to bellhouseing and all accesorys
 

JustJason

Vice Admiral
Joined
Aug 27, 2007
Messages
5,321
Re: hull extension in progress with picks

Re: hull extension in progress with picks

just so ya know..... that's not a fuel overflow... it's a tank vent.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

just so ya know..... that's not a fuel overflow... it's a tank vent.


overflow or vent....the durn thing sucked water in on me capn ! :eek::D

about 2 leiters in nasty weather !.....

(the line went from the vent...DOWN to the tank)

im going to make sure it is properly adheared to he top of the cap this time.

boats are all common sence, but there is soooo many systems....so many little nuances :)

how ya doin any how?
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

btw....thanks for your help on the t plate thing....

im still waiting for the jig from vector....but it looks good for getting it
 

bailey

Petty Officer 2nd Class
Joined
May 17, 2007
Messages
103
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Oops, man-o-man you leave no "bases" uncovered, you obviously have done alot of research, and alot of homework, and may I applaude you for all your efforts,which you have put forth, you really amaze me young fella!

Bailey
 

NelsonQ

Lieutenant
Joined
Aug 5, 2008
Messages
1,413
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Really like those docking lights oops. Where did you get those? Might consider looking for something similar for mine.
 

INJUN

Petty Officer 1st Class
Joined
Apr 29, 2008
Messages
358
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Even though I never looked to find out, but I thought that the big difference in marine ply vs. ext. ply was not only the amount of plys (more for marine) but also the marine ply wood grain is in more angles (i.e. 90s & 45s) rather than just 90s for ext. ply. Also there is a difference in the type of glue.

I remain to be corrected if I'm wrong.

Keep on truckin', oops!
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Really like those docking lights oops. Where did you get those? Might consider looking for something similar for mine.

ill get the name of them tonight 4 ya......i bought them from "him" for $100.

they were odds and ends laying around his shop.
 

MERIT6419

Petty Officer 3rd Class
Joined
Sep 3, 2008
Messages
89
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Hey oops just thinking here on the tankl overflow/vent the tubeing going back into the tank couldn't you put in a one way valve like a tip over valve on a fuel cell. just a thought
 

jcsercsa

Captain
Joined
May 21, 2007
Messages
3,401
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Hey oops just thinking here on the tankl overflow/vent the tubeing going back into the tank couldn't you put in a one way valve like a tip over valve on a fuel cell. just a thought

Yea i was thinking along the same line... John
 

WizeOne

Commander
Joined
Mar 23, 2008
Messages
2,097
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Even though I never looked to find out, but I thought that the big difference in marine ply vs. ext. ply was not only the amount of plys (more for marine) but also the marine ply wood grain is in more angles (i.e. 90s & 45s) rather than just 90s for ext. ply. Also there is a difference in the type of glue.

I remain to be corrected if I'm wrong.

Keep on truckin', oops!

1/2" Marine ply is 7 layers but the ply's are at 90 deg like everything else. The glue is also no different than exterior ply. The big difference is that there are no voids (knot holes) in any of the layers. I'm not sure whether any of the layers have plugs (footballs) in them or not but the outer ones do not.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: hull extension in progress with picks

Re: hull extension in progress with picks

Really like those docking lights oops. Where did you get those? Might consider looking for something similar for mine.

they are called aqua signal.

they are cheaper than they look....but i think retal is around 300 a set.....i havent checked i boats for them yet......but i would bet they are carring a good supply of simelar products
 
Status
Not open for further replies.
Top