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8th April 2008, 03:41 PM
| #1 (permalink) |
| Gettin' motoring  Join Date: Dec 2007 Location: CANADA
Posts: 27
|  Diesel chainsaw?????? YES or No????? Does it exist....many might have ask this question? other's would think it is impossible!!!!!!!!!!!!! The answer is ...YESSSS!!!!!!!!!!!!!!!!!!!! My latest acquisition...very rare in America.....COMET COMO "B" . Diesel chainsaw do exist and i am the proud owner of one. The russian did not invent anything but like the chinese copying the russian druzzba chainsaw and selling them as new, i was in china last fall and have seen it...we are going into a world of buyer beware!!!!! they even make true copies of huskvarna and jonsered chainsaw. Coming back to the diesel stuff, Although a very light and innovative saw, sales were not what the inventor Mr. Wiig had hoped for, so, he took his idea to neighboring Sweden. A company called Como... M. T. Bjerke would now build the Comet in Sweden. This occurred in 1950. The Swedish version of the Comet was called model B.Production of Comet is approximately 1,000 between 1950 through 1953. Verry light saw, 32oz would make her run for 1 1/2 hr....It is a 2 cycle engine that uses an injector type of carburetion system with a glow plug called a tandror working out from propane gaz under pressure inside the handle assembly. Comet was pruchased by Jonsered and did produced another model...the RACKET XA injector saw. Technology was too advanced for those days and even if those saws could run on diesel fuel, kerosene or gasoline mixed with oil, the production was limited and ceased in 1960. Hope this was of some interest....... My collection: vintagechainsawcollection.blogspot.com Alain, |
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8th April 2008, 05:18 PM
| #2 (permalink) |
| Astronaut  Join Date: Feb 2007 Location: Sydney, Australia
Posts: 679
| Re: Diesel chainsaw?????? YES or No????? Thanks for sharing Caporal. Very interesting, besides the fact that if they did market it, I'd have to start bloody carrying an extra container of Diesel :P It is very hard to imagine someone like Stihl, making something as compact as a 200T, a diesel engine. Although I could imagine something like an 880 or a 3120 as a diesel...
__________________ Climber with slow climbing speed, must make up with mighty chainsaw roar. Free Tree and Green Industry Link Directory Red : Green : Blue |
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8th April 2008, 06:31 PM
| #3 (permalink) |
| Tree World Icon  Join Date: Jun 2007 Location: Live Oak Florida home of the crapiest trees you will ever see.
Posts: 2,188
| Re: Diesel chainsaw?????? YES or No????? Thanks for sharing,do you think its safe to use around power? 
__________________  Have your say join us today. http://www.youtube.com/watch?v=Xzkd_m4ivmc http://www.youtube.com/watch?v=Xzfzb...eature=related http://www.youtube.com/watch?v=x-OqK...eature=related |
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8th April 2008, 08:23 PM
| #4 (permalink) |
| Custom Chainsaw Muffler Modifications  Join Date: Dec 2007 Location: Ohio
Posts: 57
| Re: Diesel chainsaw?????? YES or No????? I cant remember where I read it but any saw will run on Diesel if you get it hot first and you adjust the squish properly. Scott.
__________________ ScottWojo HP Modified Chainsaw Mufflers| GB Bar and Chain Distributor. |
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9th April 2008, 04:17 AM
| #5 (permalink) |
| Gettin' motoring Join Date: Dec 2007 Location: CANADA
Posts: 27
| Re: Diesel chainsaw?????? YES or No????? This is an interresting question??????????????????????  I would like to see that being a miracle..................a nice theory but impossible to my knowledge since diesel engine takes in just air, compresses it and then injects fuel into the compressed air. The heat of the compressed air lights the fuel spontaneously. A gasoline engine compresses at a ratio of 8:1 to 12:1, while a diesel engine compresses at a ratio of 14:1 to as high as 25:1.  it is not feasable with the engineering design of the chainsaw. I have seen some diesel engines that would run on gas for startup....with a decomp valve and then when hot enough ...would turn to diesel operation but never the opposite(CR is too low). on standard chainsaw...better have a strong rod.....  Alain, /www.csgnetwork.com/compcalc.html |
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15th April 2008, 04:36 AM
| #6 (permalink) |
| Cruisin' Join Date: Nov 2007 Location: Troms, North Norway
Posts: 59
| Re: Diesel chainsaw?????? YES or No????? Here is the story of the Diesel Chain Saws, written by no less than George Blake.  Since he wrote that, there has been documented that some Comet "A"s were made in Sweden, and some Comet "B"s in Norway - but most of the parts probably were made by Jonsereds anyway......  |
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23rd April 2008, 10:32 AM
| #8 (permalink) | |
| Gettin' motoring Join Date: Dec 2007 Location: CANADA
Posts: 27
| Re: Diesel chainsaw?????? YES or No????? Quote:
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23rd April 2008, 09:02 PM
| #9 (permalink) |
| The Tree World Bandit  Join Date: Oct 2007 Location: Lancaster, Ca
Posts: 1,112
| Re: Diesel chainsaw?????? YES or No????? is that a fancy way of saying "a garage sale"?? Incidentally, I was over at a guy's place this evening returning his socket set. (a WW2 set that runs up to 4") He's also a tractor mechanic and he's been helping my friend and I as we've been rebuilding the hydraulic swivel motor on the excavator. Anyhow... we got to talking about saws and he showed me his old Stihl 041, and as I was ogling it with my eyes, he brought out his 1940's homelite... that thing weighed a ton!!! What a bitchin saw though. I'll have to ask him about the diesel saw thing.
__________________ Ken Fessia I.T.S.A. Tree Service (661) 916-4703 |
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