Replacing a transom from outside ?

[JJB]

Replacing a transom from outside ?

Can you rebuild a transom from the outside ?

 

[Solittle]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

Yep! - - But why would you want to? (tell us a tinsey bit about the boat - fiberglass?/power/length/problem).

Assuming fiberglass - The outer skin of a fiberglass boat is what keeps the water out. The plywood (in most cases) and inner skin gives the transom strength to support the engine and the force it exerts. If you cut the outer skin you will have a problem in keeping the shape intact and a problem in making sure that it, when finished, is structurally secure.

Spend some time reading the threads here and I doubt that you will find one that was done from the outside - - but to your original question - - Yep!

 

[Bondo]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

Ayuh,........

Not that it Can't be done,............. But it Ain't the Right way......

 

[andy6374]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

When deciding on whether to replace the transom from the inside or outside that are many factors to consider.

1. Foremost-your skill level. Doing a transom job from the outside is not really for the first timers. Sure it can be done just make sure you read alot and think things through.

2. Doing it from the outside is optimal when you have a very complicated non-skid pattern on your deck. If you had to cut out part of the deck to replace the transom from the inside and then replace the portion of the aft deck, some of these patterns would be impossible to reproduce.

3. What are the condition of your stringers? If they are rotted you'll need access, so you'll probably want to do it from the inside.

4. What's the condition of the outer skin?

5. Alot of pro's (not me) just prefer to cut the whole back end off and replace the entire thing. It's just easier and quicker that way for them.

There are plenty of transom replacements fromt he outside on other sites. Here's just one.

http://www.classicseacraft.com/foru...=33932&page=17&view=collapsed&sb=5&o=&fpart=1

 

[JJB]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

solittle it's a 1991 20" bayliner with a fresh rebuilt 175 hp johnson . I was replacing my 150 force OB motor and found water in my transom . There were no cracks in the glass but a small dent in the motor mount area . I drilled sveral areas in the transom and lots of water and dark wood . The reason I was asking about outside replacment of the transom . ON my boat I would need to cut across the large fish boxes on both sides of my deck to get the back motor splash well and rear battery boxes cap off . Dont know how you put the fish wells 40" x 20" back together after cutting across them . they have a groved lip that the deck covers fits into , seems it be a hard time making it right again . Will it be a weaker job if done from the outside instead of inside ? What is everyone take on using material other then wood . I was reading about coosa composites and how well it bond and never to rot again be nice ! True ??? Thanks JJB

 

[Bondo]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I drilled sveral areas in the transom and lots of water and dark wood .

Tha Alone tels Me that there's More Rot than Just the Transom........

You'll have to Pull the Cockpit Liner to get to the Stringers Anyways,..........

So,....... Ya might as well do it Right in the 1st place.......

Or,... Here's another way to Look at it........

If you Don't think you can Glue the Fishboxes back together properly,.........
Just How are you going to Glue the Hull back together Properly,..??......

 

[JJB]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

What about using a composite product instead of wood ? Oh bond- o I can get it back together just looking for the best way instead of making work later . SO I guess I will move the cut up past the fishing boxes and avoid cutting them , that will put me about 1/2 way . I was trying not to cut to much of the liner out ! Thanks JJB

 

[tmh]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I've read many threads about using a pourable composite material for transom repair. I can't recall what the material is right now but i'm sure some here know.

The procedure, if I recall corectly, is to try and leave the fiberglass shell in place and rip the rotten transom out from the top. Carefully cut, scrape, pick whatever to get it out, then pour in the new stuff and let it set. Strong and won't ever rot again!

None of this solves the likely (almost certain) problem that your stringers are all rotted out and that you likely have 100's of lbs. of soaked floatation foam under the floor. I hope youdon't, but haven't seen anyone talk about transon rot without also re-doing at least some stringers.

goos luck.

 

[Solittle]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I had my transom redone about 5 years ago. They cut the inner liner about 3' forward of the transom to give them access to the transom from the inside. I don't know what they did to get a correct fit when putting it back together but you could hardly tell where the cut had been made. The boat is a 1988 23" Wellcract CC.

 

[Solittle]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

er - - - Wellcraft - - -

 

[JasonJ]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I personally wouldn't even let a pro do a transom job from the outside. No matter how skillfully done, it will never be as strong as original, or as strong as a transom job done from the inside.

You could always pull the entire upper deck/liner, but it would be awkward, but not impossible on a 20 foot boat. You would need to strip everything off to make it as light as possible, and get a bunch of buddies to help lift it out. I lifted mine out with my neighbor and his wife, on a 17 foot boat. You have not sadi what style hull you have though. If it is a cuddy or walkaround, that would be horrible to try to seperate. If it is a runabout or bowrider, it is easier to seperate. You would get the best outcome by seperating the upper from the hull, but it is a lot of work.

Your next best bet is to cut the back section of the upper and remove it and replace the transom. As has been said, you are probably looking at a stringer job and floor job as well, so you may have to revisit the pulling of the entire upper. Good luck...

 

[JJB]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

Hey solittle where did you have it done at ? Sounds like you got a good job . I am in the ft lauderdale area .

 

[Solittle]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I think it was down in Naranja - - I'm in Kendall. I'm short on time tonight but will see if I can get you a phone #. I was very satisfied. They used a sandwich fiberglass foam instead of plywood - - it will never rot again. Wiil post back as soon as I can.

 

[Kevin W]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

I think the stuff you are thinking about is called Seacast
its an two part solution that replaces the wood.
I don't have any experiance with it but it has good write ups.
transomrepair.com

 

[JJB]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

No Not seacast , I am looking for a composit sheet product instead of using plywood . and any problems of using it . JJB

 

[Kevin W]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

there is a composite sheet called G10
it is basically layered fiberglass
its much stonger than plywood but its not cheap.
it would weigh more too.
coosa composites may (not sure) be designed for floors, stringers etc. the transom would need quite a bit of strength.
this may be a good question for the MFG of coosa composites.

 

[Solittle]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

JJB - I could not find the bill but I do have some numbers for you. Try:

1. Juan Rodriguez - 305-248-1071 or 305-257-1238 - He is in Princeton, Fl.

2. Omar at Gulf Marine 305-446-8501 0r 305-613-9397 0r 305-352-3837 bpr

My memory tells me that one of these guys did the engine removal & reinstall (Juan?) and the other did the transom & glass work.

Two were involved as both engines had to be R&R and they are OMC SeaDrives. I think I paid $1,000 for that. The transom work cost $2,100.00. This would have been cheaper if I had them use plywood for the core but I chose glass. I think it was the coosa mentioned above. It was done in 1999.

I do have some pictures I could scan & send if you want to post your email addy.

 

[JJB]

Re: Replacing a transom from outside ?

Re: Replacing a transom from outside ?

Hey solittle thanks for the # , will give him a call and check him out ! Hope he is still there ,it is south fl after all ! Thanks JJB