1990 Sea Nymph

onmedic

Cadet
Joined
May 26, 2009
Messages
27
I have a 1990 Sea Nymph 195 sportfisher gls. I love the hull and i fish out in Lake Erie its a great boat but i need to spruce it up a bit.
I have two questions.
1- can you rivet from the outside as access only?
2- has anyone replaced the floor in this model of boat. Just wondering what to expect under carpet for supports and what not, i'm going to vinyl. If can time it all right i can rivet bottom while floor is out, if not hope it can still be riveted.
I had it at the cottage in the water for the fist time, usually in lakes just for the day. By morning it needed to have bilge run, i'd like to lessen the amount of water its taking in.
The boat is in really good shape with two newer four stroke motors on it, have no intention of getting rid of it and want it for a long time to come, its a great lake boat.
 

Fistful

Cadet
Joined
Mar 31, 2009
Messages
20
Re: 1990 Sea Nymph

Onmedic,

I have a 1987 17.5 Sea Nymph GLS. I removed the entire floor and replaced it with new...actually not to complicated. After tearing the carpet out you will see the plywood is riveted to the aluminum supports / stringers. First thing you need to do is drill out all the rivets to remove the wood, this will reveal the internal supports (try to keep the plywood intact to act as a template for the new floor). After cutting the new floor to shape, I fit it back into the boat and used stainless steel flathead screws to reattach to the supports.

Removing all the floor will expose the stringers, molded foam, and through-hull rivets. This is a good time to do any and all work under the floor. I too needed to do some rivet work as Ihave experience similar leaking to you. The tough part is that many of the rivets are hidden depending on how extensive you want the tear up to be (under the foam, under the console, under the stern area...). With the ones I could access, I flattened them by holding a sleg hammer underneath for counter pressure and a steel bar and hammer from inside. A few good wacks and it tighened them right up. I am sure redoing all rivets would be the better way though. Remember to vacuum up all loose rivets and crap that may have gotten in there...bad for bilige.

Good luck.
 

Huron Angler

Admiral
Joined
Apr 7, 2009
Messages
6,025
Re: 1990 Sea Nymph

We had a '86 19' Sea Nymph Fish-n-Ski and they are excellent for the big lakes.

Gluvit will solve the leaks, as long as you have access on the interior hull to all rivets and seams. Some folks put it on the exterior too, for protection from beaching/rocks.

The below deck structure will likely have pour-in foam, which can be a real pain if it's wet.

Hopefully your foam has not seen much water.

Welcome aboard:)
 

dkmartin

Recruit
Joined
Jul 27, 2012
Messages
1
Re: 1990 Sea Nymph

I have a 1990 Sea Nymph 195 sportfisher gls. I love the hull and i fish out in Lake Erie its a great boat but i need to spruce it up a bit.
I have two questions.
1- can you rivet from the outside as access only?
2- has anyone replaced the floor in this model of boat. Just wondering what to expect under carpet for supports and what not, i'm going to vinyl. If can time it all right i can rivet bottom while floor is out, if not hope it can still be riveted.
I had it at the cottage in the water for the fist time, usually in lakes just for the day. By morning it needed to have bilge run, i'd like to lessen the amount of water its taking in.
The boat is in really good shape with two newer four stroke motors on it, have no intention of getting rid of it and want it for a long time to come, its a great lake boat.

I just replaced the floor in my 1990 sport fisher gls 195. It had a plywood floor with carpet. underneath the plywood there were some aluminum panels and many aluminum trusses. I was unsure what I would find relative to the condition of the aluminum under the plywood floor but I was pleasantly surprised to find it in excellent condition. I used 1/2 inch marine board to replace the floor. It is pretty expensive and some say that exterior plywood is just as good but I didn't want to take a chance. I first used thompsons water seal on both sides of the plywood, let it cure for 2 days and then installed it. After I installed the floor and fastened it down, I then used a non skid latex deck paint that I picked up from home depot and had then color match it to the sides of the interior of the boat. It really turned out nice.
 
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