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Author Topic:   Revenge w/ OMC Sea Drives
Rangermac posted 05-19-2001 01:29 AM ET (US)   Profile for Rangermac   Send Email to Rangermac  
I'm ready to move up from my beloved Montauk to a bigger Whaler. I found an 88 Revenge W/T with a 6 cyl OMC Sea Drive rated at about 200 h.p. Have not yet inspected the boat. Reportedly has about 320 hours. I know nothing about Sea Drives. Buy or avoid?
Peter posted 05-19-2001 08:41 AM ET (US)     Profile for Peter  Send Email to Peter     
A Seadrive powered Revenge is probably a rare bird. To accomodate the Sea Drive, the Revenge was built with a full transom, which is quite desirable to some folks. However, the thing you will have to ask yourself is what will you do when the power head or other parts of the Sea Drive dies. I am not sure how easy it is to get replacement parts for the Seadrive as OMC discontinued this product nearly a decade ago. You should factor in that at some point in the near future, a repower will be likely for this specimen. To repower this one, an engine bracket such as one made by Armstrong, retrofit will be necessary. The bracket and installation thereof can be quite costly. This should be factored into the price. To learn more about brackets and whalers with them, see
jimh posted 05-19-2001 09:04 AM ET (US)     Profile for jimh  Send Email to jimh     
Your situation is an interesting one.

I have a Revenge (20) with the standard transom. All winter I was dreaming of reworking the transom and adding a bracket. Now that it is spring, I can just get on the boat and use it the way it is. It really works just fine.

The boat you are looking at would be a perfect candidate for adding a 30-inch bracket and new power. The only problem would be the time and money needed to accomplish that!

If the boat is a 22 or 25, you might even consider repowering with twin engines. Of course, that really drives the costs up!

So would I buy that boat? I guess--like all deals--the price is a big factor. I would calculate the value with little or no money factored in for the SeaDrive. It is going to need replacement and because of the transom situation you will have to spend an extra $4,000 - $5,000 to unmount the SeaDrive, repair the holes from it, and purchase and install a new bracket. Then you will be in the market for a big outboard, probably a minimum of a single 225 or maybe twin 150's. Those will cost serious cash.

Another factor might be the condition of the rest of the boat. If you did repower with bracketed outboard(s), you would be moving the boat to the absolute top of the heap in terms of performance and equipment. Is the rest of the boat intact and in condition to be moved to the "cream of the crop" level?

Of course, you could buy the boat and run the SeaDrive for five more years without a problem! Who can predict?


Peter posted 05-19-2001 10:04 AM ET (US)     Profile for Peter  Send Email to Peter     
I forgot to add that the Sea Drive had a steering system built into them which is not usable on a standard outboard so you would probably have to redo some or all of the steering system when it came time to repower. A hydraullic system (highly recommended) easily could add another K to the cost of a repower.
andygere posted 05-22-2001 03:17 AM ET (US)     Profile for andygere  Send Email to andygere     
There is a guy at the Santa Cruz Yacht Harbor with a full cabin 27 and twin 235 Sea Drives. He has told me that the powerheads and gearcases are the same as similar year OMC outboards, and he's kept his going for quite a while using outboard parts. The elaborate hydraulic tilt/trim is another story, and when I saw him last, he was trying to solve a problem with a stripped out hydraulic fitting inside this mechanism. Overall, he liked the Sea Drives, but said he was planning to repower next year using an Armstrong.
lhg posted 05-23-2001 03:17 PM ET (US)     Profile for lhg    
OMC Sea Drives are basically worthless as an engine investment, so consider the asking price as a bare boat. There are NO parts available for the Sea Drive mechanisms except from a junkyard. Anybody selling a Whaler with a Sea Drive is going to have to accept a much lower price, since controls and steering will also have to be changed.

But there is an upside for someone who wants a full transom boat, and willing to re-power.
It's a real opportunity to acquire a great boat at a good price, and set it up just the way you want it. If I was looking for a full transom Whaler, this is what I'd want, since I prefer a bracket to the Whaler Drive unit.

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