Inboard engine vs. outboard motor on CP23--my situation

[Mas]

Well just sitting here after eating too much, which we always plan to do on Thanksgiving, looking at some older threads and saw this one. We just acquired a 23D and have not had a chance to enjoy any benefits or regret any problems, but the previous owners never had any issues with the 10GM Yanmar in her. Not fresh water cooled. It is a 90 with only 356 hours. Certainly you have lost storage area and yes there are now even more thru hulls (No Mas has other thu hulls for head, deck wash down, etc.) but the bilge is bone dry and it looks as if you could eat dinner on it. It has been in the water 24/7, 365 for the past 4+ years.

What i can speak to is the salability of them, they are rare and like all rare items they are desirable. We had been looking for one, and all of them that were in boats that had been taken care of were on on the market only a few weeks and went for a premium. The 12 gallon tank in No Mas, according to Gerry Hutchins, ought to give us 48 hours of steaming at 5 knots if wished and battery charging.

No idea if you are still considering the merits of one, as there are many merits of outboards as well. Our last boat was an outboard and we wanted to have an inboard for many reason including the knowledge of how to maneuver a single screw prop boat since you can't just turn the motor. Any larger boats are going to have one so gotta jump into it eventually!

Hope this find the poster still needing a little input.

No Mas

[moonlight]

1990 Yanmar 10GM has about 5 years left, at best, before the block rots out.
Repower early and at your convenience, not in an emergency in the middle of the season.

[Mas]

personal experience?

[moonlight]

No, extensive industry experience.
Adjust of course for freshwater use; my estimate should be applied to the saltwater environs I (and most of these boats) frequent.

Cast iron is just that; iron.  It's gonna go, either with enough circulation, or because of not enough.  Switching gears to Mercruiser/gas engines; I've got a customer who we had to change his exhaust manifolds (raw water cooled) at 7 years; 92 hours.  not enough run time, plenty of corrosion time, so the chunks coming off were huge, and blocking passages.  We tried back flushing and acid washing first, due to his concern over cost of manifolds, but I had predicted that wouldn't work and was right.

[Mas]

Thanks for the heads up. Our diesel lived in fresh water for its first 8 years (and then only a few months each year)then out of the water for every winter for the next 10 years. It was in brackish water for 4 years 365 till recently and now out of water again for winters. The diesel tech said everything looked great and will have a better idea when we replace the pencil zinc this spring before a spring launch. Will monitor it but it starts on the first try and exhaust looks good. Glad to have it!

[moonlight]

Block corrosion is one of those sleeping gremlins that awakes with a startle.
Everything is fine, until it isn't...
Pressures, compression, all that and whatever is fine.
Then a flake falls off, and clogs something, and heating issues occur.
Or worse, a pin hole breaks through, and something hydrolocks.
Please don't take it as a "chicken little the sky is falling" statement, but more of a factual statement.
I had to go get a bayboat last night, stuck on the water, 1996 Yamaha 225 2-stroke.  was running great.  then wasn't.
last time it was in the shop, we did compression (as we always do) all six cylinders between 125-130.  Will check it tomorrow or Tuesday, but just basis their description I expect to find a hole in a head or the water jacket into a cylinder.
Entirely different animal; aluminum heads and such, and much higher hours on an outboard from a fishing boat (but I think this one is still less than 500?) than from a sailboat auxiliary diesel; but corrosion knows no limits and particularly if your block zinc has been neglected it's the time of corrosion doing the damage not the water flushing through.

But my prayer for you is 15 more years of successful service from this one!
And just for curiosity sake, I'll try to report back on the dead Yamaha later this week.

[Mas]

yup me too! Gunna enjoy it.

[Bob23]

No point in worrying about a problem that doesn't exist yet. My outboard, Miss Nissan size 8 who had performed flawlessly for 8 years, last season out of the blue decided to stop pumping water. And easy fix but the point is any engine, marine or land based is just one failure away from total catastrophe. When one looks at the speeds, forces and temperatures of any internal combustion engine, it's a miracle they run at all. Not to mention 250 thousand miles and counting like my Tundra. Simply amazing.
Bob23

[Mas]

No point in worrying about a problem that doesn't exist yet. My outboard, Miss Nissan size 8 who had performed flawlessly for 8 years, last season out of the blue decided to stop pumping water. And easy fix but the point is any engine, marine or land based is just one failure away from total catastrophe. When one looks at the speeds, forces and temperatures of any internal combustion engine, it's a miracle they run at all. Not to mention 250 thousand miles and counting like my Tundra. Simply amazing.
Bob23

I totally agree. If it ain't broke don't fix it. That doesn't mean ignore it but enjoy it!. My last diesel car, a Mercedes 240D, finally decided to retire at 489,000 miles. Who knows how long the little Yanmar will go but it is woefully underused to date and I intend to correct that!

Well Bob23, it's snowing yet again and we still had snow left from Jonas. We might need to wax up those xc skies again! Hope all is well.

[Bob23]

We've got about an inch here but it's turning warmer so conditions are not good. I fully expect at least 350,000 miles from my 4.7 liter Tundra. Got about 92,000 to go and he's showing no sign of weakness or slowing down. I am a maintenance freak, bordering on aircraft meticulousness, so that will contribute to it's long life.
Bob23

[HeaveToo]

An auxiliary diesel is a beautiful thing.  Keep her maintained and she will purr for a very long time. 

Damn all this snow.  I need to get some boat work done before I can go sailing.  Lots to do, little time to do it.  We will see when I get there again.

[Mas]

Hang in there Heave. Weather is soon to break and much warmer temps and sun on the way!

[HeaveToo]

I hear you.  Next Monday I think I will finish the VHF install and the water system install.

Are you guys still thinking about doing the Tangier Trip?

You know, I bet if a few other souls wanted to be involved in the crossing we could find space for them aboard and, if they wanted to, they could get a good place to sleep at one of the B&Bs on the island.

[Mas]

It is on the radar and a course is being laid out to make it happen. Like to get to the city docks at slack if possible as the currents, which you know from experience, can be a little tricky while docking. An extra set of hands is always welcome in such situations so sure space can be found. The lady who ended up with a Typhoon, I am sure will want to do this if schedule permits and others i am sure will look to join. The mid week nature of it does eliminate some but what a great time to enjoy the place.

Meanwhile it has started icing here.

[Bob23]

I'm placing this pretty high on my list. Not sure I'd be hauling the intrepid Koinonia down there...but I might. Otherwise, I'd need to hitch a ride aboard another craft. I am still planning to row this sometime but maybe a sail to Tangier first might be in order. Do you guys have a concrete date or dates nailed down yet?
Bob23