Replacing floor in 22' Crownline

Hey guys, this is my first post but I've spent a couple days digesting the wealth of knowledge here. A friend of mine recently bought a '94 Crownline bowrider that has been exposed to the elements for years. the upholstery is shot and the floor has some soft spots. I'm going to help him refurbish it starting with a new floor as I have decent carpentry skills and tools but have never repaired a boat floor before. What did I get myself into???

How well were these boats constructed or can I expect a nightmare revealed when the floor is removed?

What kind of wood was used on these and were they sealed with epoxy or polyester resins? If Poly, can I epoxy over the old poly and how can I tell which resin was used?

Can I just cut out the bad wood or should I cut it all out and start all over, and what type of ply should I use when carpeting over it? Is there an issue with carpet glue adhering to epoxy?

Sorry for all the questions, I feel I have the ability to do the job as long as I can aquire the correct information.

Thanks

Tony

 

Thanks for all the help guys, I guess you guys don't like Crownlines

I found enough info on this and other forums to proceed with decent results. I used 3/4" HDO ply for everything and I believe the boat is more solid than ever. Everything was sealed with epoxy.

 

Here is the progress

 

more pics of progress

 

and more recently....a floor or sole

 

Very nice work man. Where did you find alot of your info @?

 

Great work. I don't use HDO because I was told it has a coating to allow it to be used and re-used for concrete forming, the concrete doesn't stick to it. I assumed it would have adhesion problems, but I certainly don't know that, never having used it. I have used several tons of MDO, Olympic Signal grade, really great stuff. If HDO is as good as MDO you will have a floor that will last a very long time.

 

Great job, sure looks good and solid. I am new to the forum which I found while researching replacing the sole of my 19 foot 84 Chaparral bow rider. Lots of info on the forum but your project sure looks exactly like what I am about to undertake. It appears that you removed the cap to replace the floor, was this as difficult as I imagine it to be? Also, it looks as if you had to replace all or most of the stringers except under the engine. Was your second picture showing the repaired stringers taken before applying the epoxy?

My Chaparral has a ski locker in the floor which is where the damage started. Without removing the floor it it seems the damage is limited to the floor itself which sits on top of of fiberglassed stringers, at least in the ski locker area where I can see, but I probably will replace the entire floor which looks fairly straight forward except in the bow area. Did you have any difficulty with the bow on your boat?

 

I guess nobody answered the original poster because all this stuff has been covered numerous times before. All you have to do is use 'search'. Two things that might be overlooked is to make sure the hull shape doesn't change when all the internal support is taken out as the new stuff will lock it into that shape. Also, most of the time the fuel tank should be replaced as they are usually aluminum and corroded and you have to rip the deck up tp replace them, if you haven't provided a removable hatch over them.

 

in wingman's first pic during the tearout of the old floor, what is that metal looking plate leaning against the carpet? the reason i'm asking is because i have a 1999 crownline 202 br and the passenger seat bolts stripped out of the floor while under way. i initally thought these were through bolted, but then found that they were just screwed into the floor. the screws seemed a little strange to me as they appeared to be sheet metal screws, not wood screws. so, upon buying new stainless wood screws, thinking the more aggressive threading would hold better this time, i sealed the "stripped" holes and rotated the seat base to drill new pilot holes between the old holes for my new screws. while drilling these holes, i seems i hit metal and twisted off three drill bits. the circular layout of the holes in that piece of metal is the same pattern as the base of my seat. if that is what is beneath the wood in my boat, that would answer a lot of questions. anybody know?