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  #21  
Old 03-05-2012
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Re: Which engines would you think twice about

Quote:
Originally Posted by davidpm View Post
What about sail drives in general.
Any models ok, any trouble?
OMC Zephyr saildrive is on my list of NOT.

They are so close, and yet so far, to being the perfect sailboat engine.

"Most" of the parts are OMC outboard. Then there are the parts that are "not" and they are silly expensive and everything must be ordered.

If one enjoys pulling the engine out of the boat to change the water pump impeller, they are a hoot
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Old 03-05-2012
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I would live to hear opinions on the vetus, which is actually made by mitsubishi. since this is my first boat/engine, I can't really make any comparison. She does run like a champ every time, though.
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  #23  
Old 03-05-2012
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Re: Which engines would you think twice about

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Originally Posted by RobGallagher View Post
OMC Zephyr saildrive is on my list of NOT.

They are so close, and yet so far, to being the perfect sailboat engine.

"Most" of the parts are OMC outboard. Then there are the parts that are "not" and they are silly expensive and everything must be ordered.

If one enjoys pulling the engine out of the boat to change the water pump impeller, they are a hoot
Pretty well any boat I've seen originally equipped with these power units now have an outboard on the transom..

Two friends on different boats persevered way beyond reasonable trying to keep them alive.. in the end even they gave up. Corrosion and cooling systems seem to be the biggest issue, with temperature issues and back flooding most prominent.
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  #24  
Old 03-05-2012
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Re: Which engines would you think twice about

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Originally Posted by klem View Post
The ones that I can speak to:

Generally good
Cummins
Beta
Detroit (though many of these are starting to get pretty old)
Yanmar
Westerbeke (as mentioned there is some variation in these)
Volvo (newer ones, the parts are still expensive but they run well)
Isuzu
Deere

Ones that I would avoid
Volvo (older ones)
Atomic 4
Farryman
Sabb
You should qualify your listing the Atomic Bomb if your "avoid" call is based only on it being a gas engine. They are wonderful little engines that will last as long as a diesel if cared for. You can also get parts, right down to brand new engine blocks.
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Old 03-05-2012
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Re: Which engines would you think twice about

My statement on the atomic 4 is based partly on it being a gas engine but more on the amount of work that one needs to put in to keep it running well. I like an engine that I can put thousands of hours on with only changing the oil, impeller and air filter. Atomic 4's can last a very long time for a gas engine but they require too much work for me.
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Old 03-05-2012
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Re: Which engines would you think twice about

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Originally Posted by klem View Post
My statement on the atomic 4 is based partly on it being a gas engine but more on the amount of work that one needs to put in to keep it running well. I like an engine that I can put thousands of hours on with only changing the oil, impeller and air filter. Atomic 4's can last a very long time for a gas engine but they require too much work for me.
I never thought of that.
What exactly labor wise is required to keep them running that is not required for a diesel?
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Old 03-05-2012
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Re: Which engines would you think twice about

Can I assume that any raw water cooled engine is on the NOT list?
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Re: Which engines would you think twice about

If a boat has a saildrive unit is it true that to convert to stern shaft is probably not worth it?
If so what saildrive unit would you re-power with?
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Old 03-05-2012
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Re: Which engines would you think twice about

When you guys say expensive what are we taking about.
Sometimes a statement can be true but not significant.
For example I check on some sample prices for a Universal
Impeller 48
starter 1000
injector 121

For a volvo what we we be talking. I couldn't find any which I suspect is part of the problem?
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Re: Which engines would you think twice about

Quote:
Originally Posted by davidpm View Post
Can I assume that any raw water cooled engine is on the NOT list?
...certainly on the 'rather not' list..

Quote:
Originally Posted by davidpm View Post
If a boat has a saildrive unit is it true that to convert to stern shaft is probably not worth it?
Hmmm.... fitting a shaft log after the fact, mounting a strut where perhaps one was not intended to be.... and then there's the matter of that rather large hole between it all once you manage all that.. a new gearbox may well be required as well..
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Last edited by Faster; 03-05-2012 at 04:36 PM.
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