I bought a 1985 Hydrasports WA 2200 from a close friend of mine. He just got too old and had some health problems to do anything with it. It has been sitting approx 10 years. It has a 15 hp Honda kicker on it, model 1996 that hasnt been run enough to warrant a first oil change, and a 1994 Ocean Runner 225 that turned right over. He had it fogged and laid up when it last used it. We did a compression test, 120 all...
My concern is the floor stringers and foam.
I took the tank out, which is roughly 18" deep, 76" long and holds about 150 gallons I would say. It has some pitting, but I tig weld for a living in a shipyard, so I am familar with the precautions, gas-freeing and pressure testing of repairing 5000 series aluminum plating and testing to 2.5 psi with air. I have a vacuum box built to locally test pitted areas.
The stringers on the other hand, once I pulled the tank out, I noticed the wood was wet, rotten and crumbling. I know this is a kevlar hull, its stamped on the outside transom.
It has once appears to be a 1x8 wood underfloor joist both sides and the 1/2" plywood was attached to that. It was glassed over, but the glass was waving like a bedsheet. Thats what gave me my first clue. I took the two stringers of plywood out (fuel tank coffin longs) and exposed large blocks of foam which are glass encased best I can tell and are approx 15" high x length of coffin and 12" wide judging by the inspection hole outboard where the bilge pump hose goes over. The fiberglass on that side is also waving like a bedsheet.
Should I destroy the intact blocks of foam? Which poundage would you say the foam is? It is dense.
Should I cut the floor out to get to that outboard stringer?
These are just beginning questions, hoping that someone has one of these boats and can shed some light based on experience.
Charleston SC