John,
A few folks already pointed out that you really should get a survey.* I want to confirm that.* A survey is a bit of money to lay out but you will need one to get the best insurance rate on the boat.* Over the course of a few years of insurance, I am sure you will see a good return on your initial investment.* The 2nd reason is you get to take the engine to it's highest rated RPM under the watchfull eye of the surveyor.* If the owner of the boat doesn't want you to do that, then walk away from the deal.
I bought my MT 34DC last year*and am in the process of adding a lot of new capital improvements.* The one big maintenance item is re-newal of the upper decks.* They were soft and bouncy.* The surveyor was a pretty heavy guy and he wouldn't even go up on the bridge deck.*
The*good news is I got some additional money knocked off an already low price because of that.* The bad news is how much it is costing*in materials and labor to renew a deck on these boats.* *
The job is about half finished now at a cost of $3000 and still climbing.** It certainly isn't cheap to do this kind of thing so be advised.* You may ask, does it really need doing? *You decide.* The reason the upper decks on MTs built in the 70's*need to be re-built is*the Taiwanese builders made the upper decks out of scrap mahogany plywood left from building the rest of the boat.* The pieces, some as small as 4 in x 4 in square, were glued end to end with resin and*sandwiched between two fiberglass layers.* I guess the resin and labor were cheap compared to a solid sheet of plywood.* They tended to use this recycled product on the upper decks and I have seen some photos of it in cabin walls.* Some good news,* they used good quality mahogany plywood for most of the interior of the boat including the bulkheads.* I know because I am installing my own AC and have drilled a number of 4 in round holes finding everything I drill thru is solid mahogany plywood.* If they hadn't built the boat so strong,*most of the boats*wouldn't still be around for us to buy.*
What the Taiwanese builders didn't know and modern boat builders have learned is polyester resin does not bond well to oil rich woods like mahogany and teak.* The oils weaken the bond over time.* I*am finding the fiberglass has actually separated from the mahogany core.* That allows the fiberglass to flex a lot, develop cracks*and let water into the core which causes even mahogany plywood to delaminate.* That said the decks have still lasted a long time and that is probably due to the mahogany core and past owers weren't*as heavy as current owners tend to be.***The first is a fact while the second is my hypothesis.****
Due to the thickness of the original bridge deck, it is taking (2) sheets of 1/2" in cabinet grade plywood criss-crossed for strength, screwed and resin impregnated*and a whole lot of fibreglass cloth and resin to equal*the original deck thickness.* As my repair expert says, the bridge deck will be as strong as the hull when this job is*finished.* I am keeping a running list of materials and labor hours on this project.* I will share the results*if you like when the job completes, hopefully in another week or two.***Until then*I am just peeling thru greenbacks like crazy.* You got to buy it cheap and love the boat to go through this!
Bob
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