Anyone know this 51DA ?

Blueone said:
Boat trader needs to get its act together when it comes to iPads and phones…
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I sold my boat via boat trader.com. One of the great things about their site is you can fully describe your boat and include unlimited photos. That doesn't work with phones. My attitude was that I'll spend as much time on a phone call as a prospect needs but if he is really interestedd he needs to look at the ad on a computer. For a seller, it just appears that this is one format that isn't well suited for a little bitty screen on a phone.

Now, I'm on the other side of the desk and we find ourselves looking for a different boat. I appreciate the ads with good photos and more than a little detail and still feel that boat trader.com is a site that isn't well suited for a little bitty screen on a phone.
 
This is the only model Sea Ray I ever considered to replace my 450DA. I delivered a 510DA with 3406 Caterpillar engines in about 2000 for the local dealer. With 800 hp Cats that thing was a rocket, and the 510 is the biggest 50 ft boat you will ever climb on.

I tried to buy that boat but could never get a deal worked out with the seller and it was eventually lost in a hurricane in Pensacola.

Watch the exhaust manifold problems on a QSM-11 powered boat. We are seeing a lot of them failing now and the repair is a very expensive one……like $25K to $50K depending upon how much has to be replaced and how far the Cummins techs have to come.
 
Seems like so many of the various diesels have their own issues. Sure some are manufacturing defects but I’m noticing a lot of issues are brought on by over propping and therefore overloading the engines. I’m taking a massively wild simple solution but taking 2” of pitch out does a Diesel engine good.
 
SeaNile said:
Seems like so many of the various diesels have their own issues. Sure some are manufacturing defects but I’m noticing a lot of issues are brought on by over propping and therefore overloading the engines. I’m taking a massively wild simple solution but taking 2” of pitch out does a Diesel engine good.
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You are correct on this situation especially related to the QSM-11’s. The prop specs relate directly to the scope and severity of the exhaust manifold gasket issue. I was very particular about the prop/load/rpm specs on my 52DB. I had minor leaks that were fixed for about $4,000 (for both motors). The next owner after me ran the boat up to 1,200 hours without ever having the issue reappear. Contrast that to the guy next me in the marina with these engines in his Tiara. His props were way off, he was way over loading the engines, and the same Cummins tech did his exhaust manifolds but the cost was closer to Franks numbers above. Same for my buddy in Florida with these in his custom sportfish. He’s done the exhaust manifolds twice now in the 7 years I’ve know him and he’s at 3,500 hours on the motors.

If you watch for the signs of this known weak point, and get on it soon, it isn’t too bad.
 
Seems like it’s either the QSM11, Cat 3406 or the Man 680d in all the boats I am considering.
 
I agree with Frank, this is about the only boat I know of that would smoothly replace a 450DA. Especially with the rare third stateroom. As mentioned, I’d be leery of the wrap and honestly all the overhead speakers but if it were a real party boat, I’d expect there to be cell pictures of people partying. I saw one 510DA at a marina in Chicago once that was definitely a party boat. Complete with subwoofers all over any flat panel in the back seating area, huge speakers on the sundeck, and I counted 13 cameras including in every room in the cabin. Kinda creepy and it sat for sale for quite a while.
 
One thing I seem to recall is that the 510 was one of the (if not the) final hulls sea ray built with a balsa core. I’m sure some on here will correct me if I’m wrong, but a call to sea ray with the HIN would confirm this. Not that it’s a sin if it is, but have your surveyor pay special attention to hull soundings especially around through-hulls and exhaust ports.
 
Not quite to same degree but I watched a 48 Sundancer for 3 months thru the winter. They finally dropped price on Tuesday so went to look Saturday morning. Sold that Friday. Still makes me sad looking at it.
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I noticed the same thing over the weekend. I thought it was going to survey about a week or two ago. When I spoke to the broker he did not anticipate anything coming up at all on the survey and it was essentially a done deal.
 
You will find in many circumstances that a prospective buyer executes a survey and decides to forgo the boat based upon results and in many cases the owner not accepting the survey result negotiations. The survey is the property of the prospective buyer and not the boat's owner or broker. Consequently, many boats that go "under contract" then back on the market is exactly this. There is no incentive for the owner or broker to disclose survey results from a previous potential buyer. I'm sure that behind the scenes the broker is counseling the owner to undertake the deficiencies so the boat is more marketable and less of a waste of time to the brokerage....
 
ttmott said:
You will find in many circumstances that a prospective buyer executes a survey and decides to forgo the boat based upon results and in many cases the owner not accepting the survey result negotiations. The survey is the property of the prospective buyer and not the boat's owner or broker. Consequently, many boats that go "under contract" then back on the market is exactly this. There is no incentive for the owner or broker to disclose survey results from a previous potential buyer. I'm sure that behind the scenes the broker is counseling the owner to undertake the deficiencies so the boat is more marketable and less of a waste of time to the brokerage....
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Exactly what I was thinking as well.
 
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