PCTREE
Treehouser
Anybody know of a diesel chainsaw?? I know there was one made years ago by Jonsered I believe and heard rumor that a Russian Co. was trying to get one to market??
Diesel chainsaw
- Thread starter PCTREE
- Start date
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Cobleskill
Treehouser
Sounds heavy and smelly. It could be the future though.
Comet made the first one, then Jonsered took over thepatent.
Magnus has a bunch of them, he brought some over to Denmark a couple of years ago to show me.
Actually he was going to a historical machinery show, but wrote me and asked if there was anything I wanted to see.
One heck of a chainsaw connoiseur.
I'll PM him about this thread. My guess is that NOBODY knows more about diesel saws than him.
I don't know if you guys realize it, but we have a hell of a knowledge bank here at TH.
Magnus has a bunch of them, he brought some over to Denmark a couple of years ago to show me.
Actually he was going to a historical machinery show, but wrote me and asked if there was anything I wanted to see.
One heck of a chainsaw connoiseur.
I'll PM him about this thread. My guess is that NOBODY knows more about diesel saws than him.
I don't know if you guys realize it, but we have a hell of a knowledge bank here at TH.
N
NeTree
Guest
The the US military moving towards a "single battlefield fuel", I wonder if they're looking into a diesel saw? They were looking at diesel ATV's awhile back.
I think we'll see a diesel chainsaw again.
After all, diesel is winning over gasoline on almost all other fields.
I know American cars are still mainly gas fueled, but in other parts of the world ( to paraphrase john Irving)
Diesel is getting to be the norm.
Even the 24 hr Le mans race has been won by diesel cars ( and a Danish driver) for the last few years.
After all, diesel is winning over gasoline on almost all other fields.
I know American cars are still mainly gas fueled, but in other parts of the world ( to paraphrase john Irving)
Diesel is getting to be the norm.
Even the 24 hr Le mans race has been won by diesel cars ( and a Danish driver) for the last few years.
Cobleskill
Treehouser
JD and Kaw both have a diesel side by side 4 wheeler.
Thor's Hammer
Wolfish. Sometimes Bites.
Tom Kristiansen in the awesome Audi tdi.
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- Brevity and smelling errors courtesy of iPhone using Tapatalk
Magnus
TreeHouser
Comet was first out.
The first 1000 Diesel saws were designed by Rasmus Wiig for Norska sågblads fabrikk (Norwegan saw blade factory).
Project was ordered by the Norwegan government. It is a two stroke hotbulb or semidiesel engine of older style.
Casting parets was made by Jonsereds verken, these had no saw production other than parts manufacturing.
Propane/Gasol was used to heat the bulb.
Marketing was poor and sales were slow. To boost this the project was handed over to Como in Stockholm Sweden.
Marketing and sales now took off and saws from number 1001 up to 3999 was assembled in Stockholm by Como.
After this Jonsered assembled and Rasmus did some changes that resulted in Jonsereds first saw "Raket".
from 4000-4360 they were named "Raket P" after that "Raket XA"
XA was not easy to sell and soon electric ignition was available in same saw now named El Raket XB.
This ended the sales of the XA very fast. A few were made that had electricly heated hot bulb, XC.
I have two Comet "B" and "S", I have Jonsereds Raket "P" and XA.
To my knowledge there is no other series produced diesel saws.
http://www.chainsawcollectors.se/phpbb3/viewforum.php?f=64
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=19&t=7353
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=19&t=5009
ATV Diesels are pretty common here.
The first 1000 Diesel saws were designed by Rasmus Wiig for Norska sågblads fabrikk (Norwegan saw blade factory).
Project was ordered by the Norwegan government. It is a two stroke hotbulb or semidiesel engine of older style.
Casting parets was made by Jonsereds verken, these had no saw production other than parts manufacturing.
Propane/Gasol was used to heat the bulb.
Marketing was poor and sales were slow. To boost this the project was handed over to Como in Stockholm Sweden.
Marketing and sales now took off and saws from number 1001 up to 3999 was assembled in Stockholm by Como.
After this Jonsered assembled and Rasmus did some changes that resulted in Jonsereds first saw "Raket".
from 4000-4360 they were named "Raket P" after that "Raket XA"
XA was not easy to sell and soon electric ignition was available in same saw now named El Raket XB.
This ended the sales of the XA very fast. A few were made that had electricly heated hot bulb, XC.
I have two Comet "B" and "S", I have Jonsereds Raket "P" and XA.
To my knowledge there is no other series produced diesel saws.
http://www.chainsawcollectors.se/phpbb3/viewforum.php?f=64
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=19&t=7353
http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=19&t=5009
ATV Diesels are pretty common here.
Magnus
TreeHouser
I really doubt we will see a series produced diesel saw anytime soon....
Four strokes will be up next. Perhaps fuel injected like the old diesel saws, but not with diesel as fuel.
I would like very much to see the fuel and ignition systems interacted and controlled by one unit, not two competing against each other.
Rumors about diesel saws being made roam constantly but after a bit research it often lead to misunderstandings and BS.
Four strokes will be up next. Perhaps fuel injected like the old diesel saws, but not with diesel as fuel.
I would like very much to see the fuel and ignition systems interacted and controlled by one unit, not two competing against each other.
Rumors about diesel saws being made roam constantly but after a bit research it often lead to misunderstandings and BS.
Magnus
TreeHouser
The diesel fuel we have here is pretty much crap. Not worthy of the name any more.
Years of storage? That we could do 25 years ago, but not with this stuff....
Years of storage? That we could do 25 years ago, but not with this stuff....
Burnham
Woods walker
Yeah, and comp release would keep them from firing, if I understand diesel engine theory.
N
NeTree
Guest
It sure would; but starting it wouldn't be MY first concern; lugging the damn thing around would get old in a hurry!
Al Smith
Mac Daddy
I saw a diesel engine,single cylinder 12 HP on a trencher .Rope start .The way it worked was a racheting release on the exhaust valve which took 4 revolutions of the crank shaft to fully release .As such it got the flywheel up to speed and warmed the cylinder with the compressed air prior to injecting the fuel which was on the last revolution .Cold engine it might take several tries before it would putt .
It was a German design and actually worked pretty well .If I remember tomorrow evening I'll ask the guy that owns the engine what make it is .It just so happens that's the reunion of my graduating class of 1966 of high school .
It was a German design and actually worked pretty well .If I remember tomorrow evening I'll ask the guy that owns the engine what make it is .It just so happens that's the reunion of my graduating class of 1966 of high school .
Burnham
Woods walker
And I keep thinking that I'm the old fart around here.
Be cool to see if you can find something solid on that, Al. Thanks!
Be cool to see if you can find something solid on that, Al. Thanks!
Magnus
TreeHouser
These saws were light. Much lighter than anything on the market at the time.
Fuel injected in crank case, two stroke with fairly low compression.
Not hard to pull, but as it was hot bulb engine it was not easy to run. Loggers at the time were good at logging. Not much mechanically interested. Those who were, got this to run good and loved it!
Read this: http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=64&t=705
Fuel injected in crank case, two stroke with fairly low compression.
Not hard to pull, but as it was hot bulb engine it was not easy to run. Loggers at the time were good at logging. Not much mechanically interested. Those who were, got this to run good and loved it!
Read this: http://www.chainsawcollectors.se/phpbb3/viewtopic.php?f=64&t=705
treesandsurf
Treehouser
Magnus, what's the difference between the diesel we have now and what was available ten or twenty years ago?
jp
jp
Magnus
TreeHouser
Not really sure how it is at your location, but here it is producing less power and is more aggressive than it used to be.
We add two stroke oil to not blow the pumps up...
Compared to other countries in Europe we have about 20-25% less power... More if it is stored a bit.
We add two stroke oil to not blow the pumps up...
Compared to other countries in Europe we have about 20-25% less power... More if it is stored a bit.
Thor's Hammer
Wolfish. Sometimes Bites.
I find that hard to believe Magnus. A diesel engine will produce roughly the same kind of power output on most grades of heavy oil provided the viscosity is right. I've seen them running on old hydraulic oil, engine oil, corn oil, animal fat, palm oil etc etc. none seems to impair performance once up to temperature. I've seen diesel engines running on wood gas, marsh gas and old farts. anything seems to work.
N
NeTree
Guest
In the US, the sulphur content is much less now.
Thor's Hammer
Wolfish. Sometimes Bites.
the sulfur is only there as a lubricant. Rudolf Diesel designed his engine to run on vegetable oils, which naturally lubricate the pump. Mineral diesel was found to be lacking, so much like lead was added to petrol, sulfur was added to diesel.
Cobleskill
Treehouser
I always thought the sulfur was naturally occurring. Couldn't prove it by me.
Magnus
TreeHouser
If you run different fuels in same engine you will see differences. Energy content will not be the same.
The Finnish Diesel instead it will drastically reduce the consumption. Same with German and Polish Diesel.
If we use the Finnish farm diesel, not only will be reduced, it will have about 20% more power too.
Enough to notice a clear boost in the Truck/car just by normal use. Especially when loads are pulled.
The Finnish Diesel instead it will drastically reduce the consumption. Same with German and Polish Diesel.
If we use the Finnish farm diesel, not only will be reduced, it will have about 20% more power too.
Enough to notice a clear boost in the Truck/car just by normal use. Especially when loads are pulled.
