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Hello Forum,
I was debating whether to even create this post as I am not sure my “Admiral” will even go for this……
I was poking around and I ran across a Tiara 3600 Open, 2005 vintage, in Marathon Florida that looks interesting. This is one of the boats that is HIGH on my desirable list. Description states “5100 hours on the engines and ~90% of those are at Trolling speed”. I sent 10 questions to the listing agent about the normal stuff talked about here on the forums. I also asked a series of questions about how the boat was operated including RPM and Fuel burn both on plane and trolling, time at those speeds, maint of all attachments etc….
Are there items about the base engines that I need to ask or have a surveyor look at closely that are specific to high hour engines? The pictures of the listing look encouraging. Things are clean topside, in the cabin and in the engine compartment. Things appear to be well cared for. If the engines have been given the same due regard it might be worth taking a flight to FL and check this boat out in person.
Seaboard team have mentioned that if setup correctly, maint is performed the “Seaboard Way” and the operator runs the boat with due regard to longevity then these engines can have a long life. 10K hours maybe? Source:
The Tiara factory test shows that at 1000-1400 rpm(below hull speed) these engines burn fuel at rates that are well over the prop curve. is that even relevant at these lower rpm’s? According to the same test, the engines are over propped at about 10% when looking at the planing speed range of 2200-2600. I would take 2-3 inches of pitch out of the props if the owner indicates actual fuel burn is similar and we buy the boat.
I guess the main question is about the hours on these engines. My reading of the “low speed running…” article makes me think that the hours, in and of themselves, are not an issue. I might have tripped over a gem, pending the owner’s answers to the operation and maint questions of course. Looking for some confirmation of my reading.
The economics of this listing are actually exciting and I would love to make the “Sales Pitch” to my Admiral. Want to get my ducks in a row first.
Thoughts?
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