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Monday, July 16, 2012

Uctkam 2.5 cc Racer Diesel



Data:   UCTKAM Model 2.5 D (CSTKAM) Manufacturer U.R.S.S. (C.C.C.P.)
Distributed by U.R.S.S. (C.C.C.P.) MK III Year of manufacture 1995;
2.47 Displacement d.c. (0.151 cu. In.);
Bore 15 mm. (0.591 in.); 
Stroke 14 mm. (0.551 in.); 
Diesel power class 2 stroke;
Fixed type carburetor (without speed control); 
Admission front rotary valve (crankshaft);
Ether based Fuel / Kerosene / Oil;

Comments: One of the great Russian engines of production and quality better than the Meteor. This is a classical configuration diesel, steel jacketed, cast piston, crankshaft and supported in a front bearing in the crankcase.

Design History:
The UCTKAM Model 2.5 D was Designed and Manufacturer in the U.S.S.R. (C.C.C.P.) around 1968; was evolved from the Uctkam-1. to the MK II and eventually the featured engine the MK III which was introduced somewhere around 1995.  

Design Features:
classical configuration diesel;
steel cylinder liner;
cast iron piston;
fixed type carburetor (without speed control);
induction front rotary valve (crankshaft);
ball bearing supported crankshaft; 
schnuerle scavenging engine of high quality construction

Specifications:
2.47 Displacement d.c. (0.151 cu. In.);
bore 15 mm. (0.591 in.);
stroke 14 mm. (0.551 in.);

Observations by YouTube Channel Valic000:
Again another audition of a model diesel from my growing collection.The Uctkam arrive on the russian market around 1995,but I have no exact year. This engine popped up on E-bay some time ago and I decide this time it wil be not let it slip away from me, as I let it get away twice before..on inspection it is a very impressive engine. Its almost an exact copy of the famous Rossi 15. Diesel/Glow engine This was a very successful and proven design for combat and speed racing, that won many prizes. The Uctkam has also ABS piston setup, that will give him a lot rpm output. I am not sure,if the diesels were also sold with the res-o-pipe too.Its not a easy to find info on that issue. I think a res-o-pipe will work in a diesel too, but a bit less impact than in the case of a glow engine ,because of the lower speed and frequency of the shock wave. But it should give provide better filling of the cylinder. All in all the engine is well made to my mind but, maybe a lot people have had some bad experiences with some of the older engines from the Ukraine...that was the past...but today, there are leaders in developing hi-tec engines for competition flyer. Ceramic ball bearings and super alloys like Dispal S226 are only a few examples for using the best materials for their engines. The older engines shoud be checked for dirt and correct assembly, but if you have ``engine hands``...you can get your self a nice runner. This engine should run 30.000 rpm and produce 1 hp. It has a huge venturi and the same thick crankshaft, so it he hits the right rpm with a smaller prop, it should be possible. Maybe I will test this after the engine is freed up. Many thanks for watch my clips. A lot more nice old engine still will be run...here on my channel..please feel free to subscribe. I hope you share the same passion! Ratings and comments are always welcome.
http://youtu.be/gn3S5X5hDsU


Below, watch one of the early MK1 engines (serial no 44) scream something like it did back in those good old days.

Run-in Process for a MK3 Engine shown below

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