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Cox Engine of The Month
July-2024
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
1972 OTM Sokol 2.5cc diesels
Page 1 of 1
1972 OTM Sokol 2.5cc diesels
Here we have two more Russian engines. One is "pristine and un run" the other (with the replacement unadonised spinner) is used.
![1972 OTM Sokol 2.5cc diesels 1972_o10](https://i.servimg.com/u/f86/17/71/25/79/1972_o10.jpg)
Although these are both tight and look well made - there is an odd finish applied to the crankcase. It is flaking away on both engines.
The finish reminds me of a new galvanised bucket!
![1972 OTM Sokol 2.5cc diesels 1972_o10](https://i.servimg.com/u/f86/17/71/25/79/1972_o10.jpg)
Although these are both tight and look well made - there is an odd finish applied to the crankcase. It is flaking away on both engines.
The finish reminds me of a new galvanised bucket!
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England
Re: 1972 OTM Sokol 2.5cc diesels
These look like Yin Yan Silver Swallow diesels.
Ken Cook- Top Poster
- Posts : 5542
Join date : 2012-03-27
Location : pennsylvania
Re: 1972 OTM Sokol 2.5cc diesels
Ken Cook wrote: These look like Yin Yan Silver Swallow diesels.
Here is a Silver Swallow to compare:
![1972 OTM Sokol 2.5cc diesels Ss247a10](https://i.servimg.com/u/f86/17/00/06/17/ss247a10.jpg)
![1972 OTM Sokol 2.5cc diesels Ss247a11](https://i.servimg.com/u/f86/17/00/06/17/ss247a11.jpg)
George
gcb- Platinum Member
- Posts : 908
Join date : 2011-08-11
Location : Port Ewen, NY
Re: 1972 OTM Sokol 2.5cc diesels
Very similar but the Silver Swallow has a much better crankcase and is better finished.
ian1954- Diamond Member
- Posts : 2688
Join date : 2011-11-16
Age : 69
Location : England
![-](https://2img.net/i/empty.gif)
» Russian Diesels - OTM Striz - renovation and new handmade conrods
» OTM Sokol - renovation and maybe handmade conrod for second one
» Enya .15 diesel MK II
» Could anyone help me Identify these diesels?
» 1972 Testors McCoy .29 and .40
» OTM Sokol - renovation and maybe handmade conrod for second one
» Enya .15 diesel MK II
» Could anyone help me Identify these diesels?
» 1972 Testors McCoy .29 and .40
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