Where do i start,what did i get myself into!!

Darren Nemeth

Chief Petty Officer
Joined
Dec 25, 2007
Messages
561
Re: hull has to be deformed!!! HELP

Re: hull has to be deformed!!! HELP

Looks like a good project boat.

I completely overhauled mine. My blog [linked below] details every step of the way and also lists materials and tools used.

It is not as hard as it seems. I knew absolutely nothing about boat restoration when I started and ended up with a very professional job (if I do say so myself) thanks to this and another forum. :)

To completely rebuild the stringers, deck and transom cost be just about $2000. This includes all the tools I ended up buying, also.
 

oops!

Supreme Mariner
Joined
Oct 18, 2007
Messages
12,932
Re: Where do i start,what did i get myself into!!

the gap is caused by an uneven stringer top.

im sorry i didnt see this last year.

if you look back on the early stage of the tear down you will see that someone else has been in there....that is why the weird glass under the deck. (mark 42 commented on) and the gap between the main deck and sub deck.....boats dont have a sub deck.

the drawing was kinda small......can you post pics?
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

Updated drawing bigger this time :)

Hey oops- thanks for the reply i will post pictures when i get home this Friday.This is where is gets weird... when i put a level across the stringers they are perfectly level.I started at the bow on the stringers and in two inch increments I checked to see if they were level and they were perfect all the way to the transom.

The two stringers span about 12 inches with 6 inches on each side of the keel. I thought that if they were level all the way from the bow to the transom i should have no problems just as other guys have done on this forum.However when i layed the 1x4 across the stringers from port to starboard i had a 1 inch gap on the starboard side.The stringers are perfectly level. So maybe the deck is only supposed to be flush with the litttle lip on the inside maybe it originally rested on it.
 

Attachments

  • stringer.jpg
    stringer.jpg
    79.6 KB · Views: 0

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Does anybody know

Does anybody know

:(Does anybdy know if the deck should be flush with the lip on the inside on does it help support the deck? Any ideas why the 1x4 would not be flush from starboard to port even though the stringers are completely level?:(
 

dude11

Petty Officer 1st Class
Joined
May 2, 2010
Messages
211
Re: Where do i start,what did i get myself into!!

Only going on what you've posted;The lip--is it what was left after you cut old deck away?If so I got the same tro.--I was planning on running plywood deck cross ways of the length,but now I think I'll have to run it from front to back,so as to be able to bend it enough to hit the side ribs.That way the deck will have a slight "bow" in the center.But the wood will flush with the lip you speak of,and after tabbing it in with glass,it will be as it was. I hope this is some help--But if not maybe someone will come to our rescue!!
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

Dude 11- Your exactly right i am thinking because Larson had foam stringers the hull was not at all rigid and deformed with the trailer my boat was sitting on.Basically making the hull sides deformed and causing this issue.It sucks now because i have a new transom in and i re-did the entire sole of the boat with 1708 to strengthen it.

It's almost like i need to jack up one side of the hull side to be level with the other hull side.In the span of 12 inches the stringers are level.However when i span like 36 inches all the sudden one side is off by a full inch.

I hope somebody knows what the heck happened the hull sides have to be higher on one side i just don't know what the heck to do to straighten this out. Not getting a whole lot of replies either,make me want to start another post. :mad:
 

JAFO1

Petty Officer 1st Class
Joined
Jul 1, 2010
Messages
279
Re: Where do i start,what did i get myself into!!

Dude 11- Your exactly right i am thinking because Larson had foam stringers the hull was not at all rigid and deformed with the trailer my boat was sitting on.Basically making the hull sides deformed and causing this issue.It sucks now because i have a new transom in and i re-did the entire sole of the boat with 1708 to strengthen it.

It's almost like i need to jack up one side of the hull side to be level with the other hull side.In the span of 12 inches the stringers are level.However when i span like 36 inches all the sudden one side is off by a full inch.

I hope somebody knows what the heck happened the hull sides have to be higher on one side i just don't know what the heck to do to straighten this out. Not getting a whole lot of replies either,make me want to start another post. :mad:

Sometimes the replies are just slow.
Just because the stringers are level bow to stern, doesn't make them automatically level port to starboard. Not sure how to fix it. I had to sand my stringers down in some places, and will have to bed with pb in others.

Also, to make picture viewing in posts easier, photobucket posts image code for pictures. Just click on the 'image code' link and it will automatically copy and then you just paste to your post. No need to insert anything or have thumbnails. Also, be sure to resize the pictures to 620 (or whatever is the proper size), it's on the drop down menu of preset picture sizes.
 

dude11

Petty Officer 1st Class
Joined
May 2, 2010
Messages
211
Re: Where do i start,what did i get myself into!!

JAFO1,Your case may be a tad different than what he's talking about.I'm sure mine is different.Number one-mine has wooden stringers(that are not rotten)so grinding or adding to them is not the issue.My boat trailer only has two bunk boards up the middle,that's why I was thinking,maybe it bowed from side to side once I removed the deck.I'm also thinking that if zarillus were to split the difference,that 1 1/2in. would end up being 3/4" on either side.This also brings up the topic--Should you run your decking ply side to side for the strength--I'd say yes--when you can!!! I see no way that I'll be able to do this,and neither is zarillus.UNLESS-someone has had this come before and settled on an answer.And BTW--lord knows this isn't my post--so zarillus--please don't be offended for my long winded entry.
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

No offense taken at all!! I am glad to know someone else has a similiar problem, you and a few others are the only ones replying.I was talking to my dad last night about this very problem.He had some very good insight and brang up some possible reason why this occured.First of all my boat is only supported by 8 ft 2x4's with keel rollers on an old trailer which is most likely not supporting the hull correctly.The next thing he said kind of put it all together...When i made the new stringers i used the post and scribe method which is fine however i did not check the levelness of the boat from port to starboard only that it was level from transom to bow.Basically i beleive my boat is sitting in the trailer higher by maybe a couple inches on the starboard side and when i scribed my stringers and cut them i did it on a hull that was not all the way level from port to starboard.That would explain why only the two main stringers in a span of 12 inches are level.Also the 2x4's i beleive the boat is resting on are totally inadequate for fully supporting the hull.I have an old trailer and the hull sides are at least 6 inches past the wheels on each side.So the boat is only really supported on the 3rd chine which would keeps it's shape until you go all the way to the hull side.

What my dad suggested was blocking and leveling the trailer port to starboard and bow to stern, as he pointed out if i had low air in one of the tires on the starboard or port side all MY MEASUREMENTS WOULD BE OFF!!Also if the point was not level on the bunks my measurements would be all off!! Which makes absolute sense because it's fiberglass and it flexes.

Plan of Action:
  • Plan of Action
  • Block and level trailer bow to stern and port to starboard
  • take bunks all the way down so it's just resting on the keel rollers
  • level the boat itself bow to stern and port to starboard
  • Then check levelness from port to starboard and bow to stern in the boat
  • Once i had boat level then see where i am with regards to the inch higher on one side
 

dude11

Petty Officer 1st Class
Joined
May 2, 2010
Messages
211
Re: Where do i start,what did i get myself into!!

Bear in mind,I'm talking from basic skills,not a long line of boat builders.I've looked back at some of your pics.and just noticed the bunks are kinda cross looking,running to a point in the front.I wonder why?? Or am I seeing it incorrectly?Your dad sounds like he's on the ball,getting everything square and level,but if the bunks are to be rearranged later,for a better setup,is it possible to do that first and level-up as you go??If not,you might need to think of a rack system that can be build on a level surface,lift and place hull,then ck for stringer hight as opps sugested.If you think about it the lip,part of exsiting deck,should be ground away at the jump!Or are you able to grind it away?Would that fix things on yours? I on the other hand will use said lip to line up with new ply.The old ply was 3/8 or 7/16"with about 1/8"of glass on that--New ply is 1/2"and resting on the stringers will come up flush to top of the old lip--see what going on??? The deck is your strength,the glass is just to waterproof said deck;I've been told. I figure after new deck is in,all will blend flat then glass will fold up the sides,along with some extra lengths in the crack.
 

JAFO1

Petty Officer 1st Class
Joined
Jul 1, 2010
Messages
279
Re: Where do i start,what did i get myself into!!

Sorry y'all, I can't figure out where your gap is. Not sure what I'm missing.
 

dude11

Petty Officer 1st Class
Joined
May 2, 2010
Messages
211
Re: Where do i start,what did i get myself into!!

Brother zarillus--Any updates?
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

I am back in business!!! I blocked and leveled the trailer took the bunks all the way down so the boat was resting only on the Keel.I used a couple cinder blocks on either side and a 2x6 to support the hull edges and used carpet so it would not crunch through the hull.Then i got inside and layed a 1X4 across port to starboard and again i was an inch off.

Then i jacked up the boat using two cinder blocks and 2 2x10x8 one 8footer to lay across the cinder blocks spaced about 8 feet apart and one on top of the jack to where it meets the hull side.I jacked it up right under the hull side about and inch.. i got in and the 1x4 is perfectly level from port to starboard!!
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

Dude11 how's your project coming along? Maybe try what i did? Make sure the boat is absolutely level and adjusy accordingly.I was so focused on getting the stringers in there i lost sight of the basics.
 

dude11

Petty Officer 1st Class
Joined
May 2, 2010
Messages
211
Re: Where do i start,what did i get myself into!!

Dude11 how's your project coming along? Maybe try what i did? Make sure the boat is absolutely level and adjusy accordingly.I was so focused on getting the stringers in there i lost sight of the basics.

Sorry,I must have missed your post.It's coming-slowly I might add.Just put the deck in yesterday & fixing to PB the gaps.Already finished the transom install,just need to tie everything together w/some tab work.Can't believe how csm and raw ply can suckup resin!!When I started this little ditty I thought these guys are just overkill on amount of resin-NOT--just ordered two more gal.I'll have way more than needed,but I won't be worried about a dry layup either!How's things coming on yours?Bout ready to splash-test it?LOL:D
 

JAFO1

Petty Officer 1st Class
Joined
Jul 1, 2010
Messages
279
Re: Where do i start,what did i get myself into!!

Sorry,I must have missed your post.It's coming-slowly I might add.Just put the deck in yesterday & fixing to PB the gaps.Already finished the transom install,just need to tie everything together w/some tab work.Can't believe how csm and raw ply can suckup resin!!When I started this little ditty I thought these guys are just overkill on amount of resin-NOT--just ordered two more gal.I'll have way more than needed,but I won't be worried about a dry layup either!How's things coming on yours?Bout ready to splash-test it?LOL:D

Yes, resin does seem go go fast! I just picked up my third 5 gal bucket. Most resin made it to the boat, but I figure I've lost about a gallon or so due to the fast kick in the summer heat. With the cooler temps, maybe we can make some progress!
 

zarillus

Petty Officer 1st Class
Joined
Jan 29, 2009
Messages
252
Re: Where do i start,what did i get myself into!!

Its' coming along well and hope to have actual pics this weekend.Totally redesigned the stringer system to more of a frame system with actual bulkheads to support the hull.This baby will have little hull flex and be super strong!! Way overbuilt... I am cleaning up the tabbing and will be laying fresh glass over the new stringers this weekend!!!
 
Top