Moving to 'The Dark Side"


jlanka

jlanka

New member
Well, I went and closed on a 2010 Sea Ray Sundancer 580. My 2007 40PC will be up for sale this spring (gotta get her ready)

It's been great being a Formula owner. I'll pop in here to lurk from time to time.

Thanks for all the great tips.

Jeff
 
sweet. A L650 Express is my current dream boat. Just have to sell a few kidneys first.

what engines are in the 580? top speed?
 
You might know this. On these larger boats with engines the size of small cars, can you actually replace the engines at some point in the boat's future? The hatch on the L650 is like 3x3 feet, but obviously you aren't getting an entire engine through that hatch. I had to replace both engines on my 292 due to previous owner neglect. Just curious how that works on the bigger ones. thanks.

Formula's new 550 or 500 (not sure length) has like 4 600s mounted to the back. I wonder if I could put 4 600s on the back of a L650 LOL.

Maintenance would be 1000x easier with the engines on the back.

https://www.thehulltruth.com/boating-forum/159712-man-900-cr-servicing.html

found that when I googled the Man900. I wonder what they do for $11k 'service'?
 
The larger diesels are not even in the same ballpark as small gas engines. The gas engines may as well be disposable compared.

They are designed for life measured in the mid to high thousands of hours. Additionally many are sleeved, so that you rebuild the whole engine in the boat without removing the block.

Finally, if you do need to do an engine out rebuild, the cost of cutting the floor and re-doing it is a fraction of the cost of the engines/rebuild.
 
You can remove the floor if you have to replace the engines. You aren't cutting fiberglass you are simply slicing through caulking.
 
fascinating. I wonder if there's any videos on youtube. I will be looking into this. Yeah, you could then leave the block in place, resleeve it, but how do you get the crank out? So many questions!

Yes, a Merc 350 short block is, cost wise, disposable vs these engines.


thanks!
 
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There is tooling that will refinish rod journals without removing crank. Only a catastrophic fail would a crank removal be required
 
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