Questions on transom repair 85 16 seaswirl outboard

shawpdx1

Petty Officer 1st Class
Joined
Apr 29, 2009
Messages
294
I'm going to attempt to repair this transom tomorrow has anyone ever done one like this. it looks like the plywood goes all the way across on the bottom but is notched out arounf the upper housing. cna anyone help with on were I should cut off the glass from the outside? looks like I have something to tie to below do I use big lag bolts ? I was going to cut and expose the whole outside of the back about 3" from each corner to leave me room to somehow tie in the sides Im lost there here are some pictures any help would be great and I will take pictures as I go pics show the hull style hopefully someone has been down this road with this type of hull looks like I can secure from the inside thanks in advane
 

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NoKlu

Senior Chief Petty Officer
Joined
Feb 23, 2008
Messages
786
Re: Questions on transom repair 85 16 seaswirl outboard

You do NOT cut the glass from the outside. You are cutting the hull if you do. The repair is done from the inside.!!! Before you do anything search transom repair and find one that is similar to yours. Hopefully someone with more experience than me will chime in and help you. DO Not cut anything till you get more info.
 

lucid484

Petty Officer 2nd Class
Joined
Oct 5, 2008
Messages
175
Re: Questions on transom repair 85 16 seaswirl outboard

hahah look for my thread..my transom looks like its gna be worse than yours to do..i think its in a few seperate pieces...and my splash well has plywood core all around it also =(
 

shawpdx1

Petty Officer 1st Class
Joined
Apr 29, 2009
Messages
294
Re: Questions on transom repair 85 16 seaswirl outboard

wow after looking at other repairs seems mine might be a pain to do. but my plywood does not go all the way up to the height of the seats it only goes to the height of the transom and then all the way across. guess I will follow factory build
 

NoKlu

Senior Chief Petty Officer
Joined
Feb 23, 2008
Messages
786
Re: Questions on transom repair 85 16 seaswirl outboard

Here's another way to consider. Check out the GDMF thread and klik the link in post #20. I tried to move it here but can't get it to work. There is another product called NidaCore that is cheaper.
 

shawpdx1

Petty Officer 1st Class
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Apr 29, 2009
Messages
294
Re: Questions on transom repair 85 16 seaswirl outboard

NOKLU were is the GDMF section
 

VeroWing

Petty Officer 2nd Class
Joined
May 16, 2009
Messages
150
Re: Questions on transom repair 85 16 seaswirl outboard

From looking at the few pics you show of your boat, I would do either one of two methods to rebuild that transom.
The first option would be to remove exterior rubrail from transom towards bow around three feet up each side, enough to get to narrow section of gunwales. At this point on gunwales I would cut cap on each side, unscrew cap in rear, and lift this section off. This will give you clear path to interior transom repair job, and make it so you can actually epoxy layers of plywood, or whatever type material you will be using, together, and then install as one unit. Much easier than buiding transom one layer at a time. Only drawback is, you must do a nice finish job to the cut seam when reattaching the rear cap section.
Second option that may be available to you is this. You may be able to cut and remove those two thin (2 1/4"?) sections of transom side notch areas, like you have the section where outboard mounts. This may allow you to install layers of plywood, if they are cut in half, staggering cuts. It would probably be pretty messy, trying to install epoxy coated plywood to interior coated transom, but it sure would save a ton of labor in the long run.
There may be at least one other option, depending on how high from bottom plywood goes up on interior transom. That would be to install, epoxy, etc., from underneath that cap section. Again, messy, but will save a lot of labor.
Looking at your exterior transom, I see various holes where items were attached. Each one of these holes can be used to pull new layers of wood tightly against transom interior wall with screws. After it all dries and cures, remove screws and fill holes with pigmented epoxy paste. You can even drill more holes if you need. Don't be worried, when you patch these holes with epoxy, they will be stronger and denser than what you are replacing. If done correctly, it willl never ever leak a drop of water.
Good luck, Mike.
 

shawpdx1

Petty Officer 1st Class
Joined
Apr 29, 2009
Messages
294
Re: Questions on transom repair 85 16 seaswirl outboard

Thanks Mike!!
I like option 2 the transom only goes up about 3" past the area were the outboard attaches so I would stager my seams to the outside so I dont have a seam in the center. Im on the fence on repairing it . I actually like the room in it and the width for a small boat for fishing was going to just put in some comfortable swivels and leave the rest wide open. think it would be good out on the columbia river here in portland. would you guys spend the time repairing this boat or just off it and look for another
 

jonesg

Admiral
Joined
Feb 22, 2008
Messages
7,198
Re: Questions on transom repair 85 16 seaswirl outboard

Do it the ez way, slide a sear elec chainsaw down inside the transom ,it will throw all the wood out for you, then pour a nida core composite filler back in there, no more wood, no more rot.

Heres how I did mine and the tools used, the long drill extention is good to chew up wood in the corners. Took a couple of days max.
 

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