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Old 10-02-2013, 04:30 PM   #1
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Diesel Dinghy?

Hi all, I have another question. I was thinking about dinghy engines. Were I to get a boat I would like to have an outboard powered dinghy. The drawbacks of stowing gas on board had me looking around for alternative engines for one. There is propane, electric, gas or diesel.
So anyway, if you got in a fix and the (single) engine was out, it might be possible to tow the boat with the dinghy if you had enough fuel and the patience to actually get anywhere. This would rule out gas, (small fuel can) and propane would be limited to your cooking/heating supply. The odds against ever needing 10 tanks of propane would put me off storing that much aboard all the time, so it wouldn't be there.
I came upon these diesel outboards:

Diesel Outboards | Klaxon Diesel Outboards

Does anyone have experience with these or any other diesel outboards, and if so, what do you think of them, their costs and their utility?

It would be great to have unlimited dink fuel aboard without using up all the propane and no explosive gasoline to stink up the boat.

Feel free to straighten me out, I need the info to further my scheming and dreaming.
Thanks to all and I really enjoy reading and living vicariously through your excellent forums.
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Old 10-02-2013, 05:03 PM   #2
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Greetings,
Mr. Bluto. Outstanding idea. Better still, the LHD series could be used as a get-home mounted on the swim step (adequately braced of course). @.5 GPH (for the 15.5HP) you could go a heck of a long way with trawler capacity tanks.
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Old 10-02-2013, 05:13 PM   #3
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Great idea. I thought it would also serve as a get home engine.

BUT EPA knows more than you, so forggetttaboutit.

100 years from now, they will look back at these years and both the Democrats and Republicans will be recognized as the second coming of the Know Nothing party.

No science, just politics 24/7. I can't believe that in the 60's we actually were so stupid as to think that science could help us.
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Old 10-02-2013, 05:17 PM   #4
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Greetings,
Mr. Bluto. Outstanding idea. Better still, the LHD series could be used as a get-home mounted on the swim step (adequately braced of course). @.5 GPH (for the 15.5HP) you could go a heck of a long way with trawler capacity tanks.
Hi!
I'm just Bluto, man
I'm not qualified to scrape barnacles at this point!
I like that idea, you could arrange a solid mount that isn't too conspicuous then pop it off there and stow it in the lazarrette. Beats heck out of driving the dinghy all day in the heat and weather.
It could do double duty as a dinghy engine. There must be something wrong with these outboards or you would see them in use, wouldn't you?
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Old 10-02-2013, 05:23 PM   #5
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Great idea. I thought it would also serve as a get home engine.

BUT EPA knows more than you, so forggetttaboutit.
Oh, Noooes!
Not those morons again! So they have some beef with diesel outboards when the entire sea-faring world lives with diesel powered ships.
That must be the catch, right there...

Bluto sad. Heck with it, I'd run one anyway, if I decided it was the way to go.
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Old 10-02-2013, 05:30 PM   #6
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Greetings,
Mr. Bluto. Outstanding idea. Better still, the LHD series could be used as a get-home mounted on the swim step (adequately braced of course). @.5 GPH (for the 15.5HP) you could go a heck of a long way with trawler capacity tanks.
We think a like.
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Old 10-02-2013, 05:32 PM   #7
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After watching their video, sans video, I did see some future income for me. Doing voice overs in Asia. Three years from now, Stay tuned.
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Old 10-02-2013, 06:02 PM   #8
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Tried to open the link to the diesel outboards but didn't succeed.

One potential downside to a diesel outboard would be weight, assuming that they are heavier than gasoline outboards of the same HP. That could be an issue for handling and weight distribution on a dinghy.
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Old 10-02-2013, 06:07 PM   #9
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They are heavy check the weights in the link given on the first page.
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Old 10-02-2013, 06:16 PM   #10
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Klaxon Diesel Outboards Features

A link to their homepage. Maybe that will work better.
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Old 10-02-2013, 06:22 PM   #11
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They are heavy check the weights in the link given on the first page.
Yep, 10 HP electric start, 47 kg. (103.4 lbs)

Well.. that certainly is a drawback. I guess they have some cast iron involved in those rascals. To be fair they claim that a lower hp rated diesel can do the job of a larger gasser. I don't quite get that.
The outboards would have to have a high pressure injector pump so
I imagine that adds weight (and cost).

So weight and legal issues have to be considered.
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Old 10-02-2013, 06:28 PM   #12
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I tried a number of different ways to get to their site, to no avail. Perhaps I'll have better luck later.

It would be interesting to see how their outboards stack up to gasoline outboards weight wise. For example my Yamaha 9.9 four stroke weighs 91 pounds. Would a diesel come in at 10% higher? 20%? 30%?
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Old 10-02-2013, 06:33 PM   #13
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Yep, 10 HP electric start, 47 kg. (103.4 lbs)

Well.. that certainly is a drawback. I guess they have some cast iron involved in those rascals. To be fair they claim that a lower hp rated diesel can do the job of a larger gasser. I don't quite get that.
The outboards would have to have a high pressure injector pump so
I imagine that adds weight (and cost).

So weight and legal issues have to be considered.
That isn't so bad. My Yamaha 9.9 is 12 pounds less but also is a manual start. Put an electric start on it and I suspect that the weight difference wouldn't be significant. Mind you, a 2 stroke 9.9 manual start comes in at 79 pounds but they are hard to get these days, at least new.
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Old 10-02-2013, 06:37 PM   #14
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Yanmar used to make diesel outboards.
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Old 10-02-2013, 06:41 PM   #15
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That isn't so bad. My Yamaha 9.9 is 12 pounds less but also is a manual start. Put an electric start on it and I suspect that the weight difference wouldn't be significant. Mind you, a 2 stroke 9.9 manual start comes in at 79 pounds but they are hard to get these days, at least new.
The 2 stroke 9.9 is a breeze to pull through, where I imagine that 10 hp diesel would take Arnold to spin up..
That's why I quoted the elec start model's weight.
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Old 10-02-2013, 06:51 PM   #16
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The 2 stroke 9.9 is a breeze to pull through, where I imagine that 10 hp diesel would take Arnold to spin up..
That's why I quoted the elec start model's weight.
Agree - we can't all have an Arnold in our back pocket!

I've been trying to find specs on an electric start Yamaha 9.9 four stroke for a direct comparison to the diesel, but no luck. I'm actually pleasantly surprised at the kind of reasonable weight of the diesel outboard - as long as you don't compare it to the now hard to find two strokes.
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Old 10-02-2013, 06:54 PM   #17
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Yanmar used to make diesel outboards.
Right you are Daddyo. I'll try to copy the spec's below, but I always imagined if I found a 27, I'd prop in on a transom bracket to use for get-home. If you don't mind handling the weight, an 11 ft. dinghy should do well with it, but I'd still carry a propane 5 HP for most uses

http://www.minardsdiesel.com/images/diesel_outboard.jpg
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Old 10-02-2013, 07:40 PM   #18
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Tohatsu makes diesel outboards. I saw a Panga here in seizure with two rather small one's on the back. They said they seized it near Puerto Rico and it had come from Columbia loaded with dope. That's pretty far, figured fuel efficiency, and small radar "footprint" was reason.
Impressed me. They must sell them in South America. I made "note to self".
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Old 10-02-2013, 10:28 PM   #19
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I had a 7kw diesel outboards on my tri, it was the get home. It worked well but was just too heavy for me to handle by myself in a seaway and I didn’t want it on the stern all the time. I replaced it with a 9 hp 4 cycle gas outboards. My next boat, which is in the yard, had a 40 hp yanmar driving a hydraulic pump, now redundant. I am building a dingy around this engine to act as a tender/get home.

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Old 10-02-2013, 11:44 PM   #20
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why does everybody make such a fuss with storing a little ( 15 gal max ) gas on board? It really isn't a issue unless the skipper is a moron.
Store it in a on deck locker, turn over the fuel every few months.. enjoy boating.
I cannot imagine the noise of a diesel hanging off my inflatable.. or the weight.
My 15hp Yamaha 2 stroke s.s. weighs 80 lbs.. on a 11' Zodiac it's just right.
Klaxon's 10hp weighs 171 lbs ! a real pig.
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