question about stringer replacement

rockyrude

Lieutenant Junior Grade
Joined
Sep 10, 2007
Messages
1,120
I am getting ready to replace stringers on a 78 glastron hpv-175. I've 90% of the info I need right here but have two questions, one easy one hard. First the easy, what is the best way to deal with the drain tubes that go through the transom? It seems they need to come out to split the hull. Now the hard one, the previous owner seacasted (?) the transom in place without doing the stringers, is this comming apart?
 

Solittle

Fleet Admiral
Joined
Apr 28, 2002
Messages
7,518
Re: question about stringer replacement

Could you reword your question? It is not clear to me at least. Also some pictures would help.
 

rockyrude

Lieutenant Junior Grade
Joined
Sep 10, 2007
Messages
1,120
Re: question about stringer replacement

According to everything I've read here, the only right way to replace stringers is to take the top half off to get full access to them. My concern is that the seacast has bonded to the top and bottom halfs (one side the bottom hull the other the top shell) enough they won't come apart. Unless I'm not seeing how the transom is really formed.
 

salty87

Commander
Joined
Aug 12, 2003
Messages
2,327
Re: question about stringer replacement

there's no telling what a previous owner might have done.

seacasting the top to the bottom would not be good and would be tough too. usually, the top is riveted to the bottom behind the rub rail.

the seacast should have been poured down into the transom and let cured. then the top is secured back down. previous owner would have to have been very crafty to keep the seacast between the hull surfaces while putting them back together. still might not be fun or easy but you're correct in saying that's the proper way to repair a deck...not the only way. alot depends on what you have to work with so once you get to tearing it apart, plans may have to change.
 

sdunt

Petty Officer 1st Class
Joined
Sep 11, 2005
Messages
389
Re: question about stringer replacement

I am getting ready to replace stringers on a 78 glastron hpv-175.

Sorry but I can not find that model in the sales brochures:
http://www.classicglastron.com/gl-the-years-web.html

Can you point us to the right model, we're trying to visualize how the boat was built. Also check with the folks on THE glastrom forum:
http://www.readylens.com/messageboard/showforum.asp?fm=Forum

Do you HAVE to remove the deck to rebuild the floor and stringers? Not necessarily, I didn't remove the deck to replace the floor in my boat.

Removing the deck makes the job easier and you might not be able to wiggle the full length stringer into the boat with the deck on. But that won't stop you, if you're creative.. I would be surprised with the space under the bow of many boats that you couldn't get the full length stringers in there somehow.

You could also laminate up the stringers inside the boat, either right in place against the hull or laying on their side on a temporary work area built inside the boat.

As for the floor replacement, taking off the deck lets you use larger pieces of plywood for the repair, but you can get by with smaller pieces, you will just need to put in more blocking and frames..

Get us some pictures and we can help you figure this thing out..

p.s. I can also envision what you're saying about the sea cast, yes, it is possible that the previous repair has cemented the upper - deck fiberglass to the lower - hull fiberglass.

There have been some people that have cut off the splash well instead of removing the entire deck. You could potentially do the opposite, you could cut the splash well loose from the deck and leave it in place while you take the deck off.
 

rockyrude

Lieutenant Junior Grade
Joined
Sep 10, 2007
Messages
1,120
Re: question about stringer replacement

Sorry, I'm also working on a 78 evinrude that goes with this, it's actually an 80 glastron hpv-175 bass boat.
 

sdunt

Petty Officer 1st Class
Joined
Sep 11, 2005
Messages
389
Re: question about stringer replacement

Ah, yes side consoles. that potentially run all the way down to the floor.

http://www.classicglastron.com/80gl-hpv165-175.html

Yes, this a design where 'popping the top' makes the job much easier. Floor replacements have been done on these w/o removing the deck, but the floor went back in as lots of pieces.

As for stringers, it really depends on what you find. If you can lower the new stringer in between the consoles and then move it into position before you 'glass it in place it could work.

Unfortunately like 90% of other boat rebuilds, you really need to open it up to see what's going on before you know for sure..
 
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