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Wednesday, March 28, 2012

SIM 2 Polish Model Diesel Engine

SIM 2 model diesel engine 2cc
Circa 1950



Design History:
Designed and manufactured in Poland in the 1950's

Design Features:
long stroke;
cast iron piston;
steel cylinder liner;
rear induction;
integral fuel tank; and,
plain journal bearing supported crankshaft

Specifications:
displacement 2.0 cc


Observations:
Sim 2 is a 2cc Polish model engine from the 1950's the design is typical of other long stroke engines of the period




Fitted with a huge propeller seen below ready for a test run

Easy starting with loads of torque even though the compression of this engine is less than desirable
The sound made by this long stroke engine is music to the ear: almost as good as that made by the classic Dyno; the sound on the video clip does not do justice to the real thing. 





Uploaded by valic000 on Mar 17, 2012
Welcome again for people who visite my channel regularly. Today I will show the rare Polish SIM 2 engine. Of a design concept which is very typical for its time. A long stroke side-port engine. He makes a lovely sound when run. I was really amazed about that: almost exactly like my Dyno replica. The engine is in decent condition, but could use a new crankshaft bearing and piston. As he still runs very well, I decided to wait until later to do this maintenance work.
In Poland there are some engine manufacturers, but not a lot. The Jaskolka and the Super Sokol are know too me, but I am sure that there are more. With great engine building nations and neighbors like the Ukraine who have been making great engines for a very long time why don't they just import more of them?
This engine has a lot similar things with my Letmo 2.5 diesel and Super Atom 1.8cc. but that's not uncommon...as I saw many copies of the Mills and Dynos out there.....copy a successful engine is the fastest way to get a proven concept.
I was lucky with the buy this one, as I said before, its not an easy find. Also very hard to find is any info about the Sim engine: if somebody out there knows more about the Sim engines, it would be nice to send it along.....just a hint! Thanks
I am of course very happy to have him next too my Czech engines.
Many thanks for watching...see you soon, here on my channel
Vallic000


http://youtu.be/Ec9svmJXIYA


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