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#1
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On board self-built Genset
http://www.homepower.com/files/mark8.pdf
Any opinon on this being used as a genset on a sailboat? An excellent PDF file on building a genset from a 5HP motor and car alternator. Including images and schematics of resistive field controller as well as an electronic field controller version. Most interesting is: "Type and Size of Engine We’ve since tried many different combinations of engines and alternators. Small gas engines between 3 and 8 horsepower work well. We found that the Honda small engines will run more than 5,000 hours without major work, Tecumseh engines about 800 hours, and Briggs & Stratton engines about 600 hours. The particular Honda G40 (170 cc, Å4.5 hp) engine pictured here has run for over 13,000 hours with the same rings, bearings and valves. The Honda also has the advantage of a 100 hour oil change interval, compared with 25 hours for both the Tecumseh and the Briggs & Stratton. If you consider the operating life and operating cost of small engines, then the higher quality engines are much less expensive despite their higher initial cost. " Mic |
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#2
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On board self-built Genset
wouldn't something like this be a lot more practical???
http://cgi.ebay.com/GAS-POWER-PORTAB...QQcmdZViewItem |
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#3
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On board self-built Genset
on deck maybe
below deck never "Mic" wrote in message ... http://www.homepower.com/files/mark8.pdf Any opinon on this being used as a genset on a sailboat? An excellent PDF file on building a genset from a 5HP motor and car alternator. Including images and schematics of resistive field controller as well as an electronic field controller version. Most interesting is: "Type and Size of Engine We've since tried many different combinations of engines and alternators. Small gas engines between 3 and 8 horsepower work well. We found that the Honda small engines will run more than 5,000 hours without major work, Tecumseh engines about 800 hours, and Briggs & Stratton engines about 600 hours. The particular Honda G40 (170 cc, Å4.5 hp) engine pictured here has run for over 13,000 hours with the same rings, bearings and valves. The Honda also has the advantage of a 100 hour oil change interval, compared with 25 hours for both the Tecumseh and the Briggs & Stratton. If you consider the operating life and operating cost of small engines, then the higher quality engines are much less expensive despite their higher initial cost. " Mic |
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#4
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On board self-built Genset
That makes me wonder. What is the smallest and lightest diesel engine
available? There used to be some model airplane diesels but I don't mean that small  -- Roger Long |
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#6
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On board self-built Genset
Those look like remarkable engines, but slow turning, so big and heavy.
This is a small air cooled diesel. http://www.lombardiniusa.com/singtabl.htm "Mic" wrote in message ... On Tue, 01 Nov 2005 11:58:14 GMT, "Roger Long" wrote: That makes me wonder. What is the smallest and lightest diesel engine available? http://www.vegburner.co.uk/dieselengine.html EXCELLENT PAGE^^^^ http://www.vibha.com/diesel.html http://www.lovson.com/air-cooled-diesel-engines.html http://www.lovson.com/lister-type-sl...l-engines.html http://www.lovson.com/peter-type-sh-series-engines.htm http://www.dieselnet.com/news/1997/08yanmar.php http://www.usdieselengines.com/6_kw%...rator_open.htm http://boatdiesel.com/Articles/APage...troduction.cfm ****Out With The Old - Replacing Old Fuel Filtration Technology With New http://boatdiesel.com/Articles/APage...troduction.cfm ***Repowering a 34 foot Californian http://boatdiesel.com/Articles/APage...ion.cfm&Y=2005 Installing Shafts, Logs, Struts and Rudders along w/ your favorite Engine and Transmission http://boatdiesel.com/Articles/APage...ion.cfm&Y=2004 Engine Life vs. Engine Loading http://boatdiesel.com/Articles/APage...ion.cfm&Y=2004 Nothing beats good filtration! There used to be some model airplane diesels but I don't mean that small -- Roger Long |
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#7
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On board self-built Genset
Impressive research but you missed the real gem:
http://www.launtop.com/ebusiness/en/...5&productid=40 the 5 hp model can be had for about $200 last I checked. The info I have is that this is the factory that makes these engines for Yanmar. A rumor is that they make the gasoline engines for Honda. |
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#8
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On board self-built Genset
That kind of thing might be appropriate as a quick and dirty emergency
homepower solution but never on a boat. I agree with the figures quoted on engine life however. When it comes to small gas engines, Honda OHVs are the best I've seen. Mic, since you seem intent on posting to this cruising newsgroup with prodigious verbocity and authority, I think it would be appropriate if you told us a bit more about your experience, e.g., what kind of boat do you have, where do you cruise, experience level, etc. I may may be wrong but you impress me as a total rookie who is not well enough grounded in boating skills/experience to filter out good information from bad. Enough said? |
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#9
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On board self-built Genset
The issues with air cooled diesels on a boat are noise and ventilation.
The water jacket provides enough extra mass and bulk to have a significant noise reduction effect, and diesels need all the noise reduction they can get. In addition, air cooling requires an open engine box further adding to the noise issue. |
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#10
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On board self-built Genset
On 1 Nov 2005 18:25:23 -0800, wrote:
That kind of thing might be appropriate as a quick and dirty emergency homepower solution but never on a boat. I agree with the figures quoted on engine life however. When it comes to small gas engines, Honda OHVs are the best I've seen. Well I like the idea of attaching an alt. to an outboard as your genset idea that I posted a while ago better. But those who are inovative and think for themselfs....well I like that. Now can this concept presented in the form which it is in be made to work in certain instance or circumstances? Or maybe just part of it like the schematics for the field control of the alt.? Or the concept of using a 1 cyl. water cooled diesel instead as sort of suggested in the thread. In many instances the use of the inboard engine just to charge the bats. is not very desirable. And to have a 110 volt ac genset to charge your DC bats. may not be desirable either. Many cruisers are going for the 1000 watt Honda portable... In sailing and in particular cruising there are plenty of things or issues that I would not have thought of and when I see some of the inovations, creations and ideas I am "impressed" with the thought behind it. For example take a car alternator and a lawnmower engine and create a generator - it aint the theory of relatives.... but is works. Would the one referenced work best? Could it be adapted to make it suitable? Yes I think that there are ideas in the referenced link that are useful. One of the enjoyable things about sailing is the thought that goes into it = which can be at many different levels...have a look at the keeldragger link movie I provided...its sailing, its entertainment and they were having fun. Mic, since you seem intent on posting to this cruising newsgroup with prodigious verbocity and authority, Really? I think it would be appropriate if you told us a bit more about your experience, e.g., what kind of boat do you have, where do you cruise, experience level, etc. I have done that in the past so it would be redundant. Substitue "appropriate" with "appreciate", it sounds better and usually works better too. I may may be wrong I guess there is is first time for everything.....sometimes repeating that experience is a good thing and sometimes its not. but you impress me as a total rookie who is not well enough grounded in boating skills/experience to filter out good information from bad. Enough said? My efforts are not to "impress" anyone but if you feel that way OK. There are those who appreciate the references I have provided and even better is that they have become references on sailing and boating sites and to be shared with those who have a passion for sailing and boating. Generally I dont offer unreferenced opinions or enter into discussions where people choose to be nasty...its not my style or worth my time. So with regard to your statements I suggest the following: http://www.bumfuzzle.com/ http://cruisersforum.com/forumdispla...d 2&forumid=2 Bumfuzzle topic ( 1 2 3 4 ) 46 replies 1432 views Unfortunate turn! ( 1 2 3 4 5 6 7 ... Last page ) 215 replies 13267 views Maybe you'll benefit from some of the ideas there, its clear that some of those who have participated in the discussion have and those that havent well...should watch Mary Poppins and sing along. Right. Enough said... Fair wind and calm seas...... |
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