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I just receive this engine, I was looking forward to it because I had seen on the web that some had arrived with missing parts. But fortunately this one is (almost) complete, just missing a pair of screws and the instructions. The workmanship is outstanding, it starts easily and runs smoothly...

Hi, what is the right percentage of oil to mix in the gas for these old and "big" 2-stroke engines and what kind of oil, I.E. standard oil for chainsaw, mopeds or other for modern engines?

A very interesting observation about the design, could you tell us more ? Thanks !

Bluejets, thanks it's always a pleasure to enjoy a video of a running engine. The seller found and sent me an old photo taken at a model show with medals and prizes she won... But he has no other infos available.

Happy new year to all and thanks for your suggestions and advices. I don't think the engine is a Westbury design either, a very particular point is the arrangement of the plugs : In most engines they are in the open. Here, you have to remove the cylinder head cover to unscrew them and in...

Longboy, Sorry, no inch rule here but I estimated the displacement with the total length of the jacket (130 MM or around 5 inch) including a water cooling chamber all around this jacket and the stroke of 22.5 MM or .86 inch but don't know if it's right ...

Tim and Longboy, many thanks for your helpful suggestions ! May be I'm wrong but in my mind, a carb that has to feed a 4 cylinder engine 20CC should have basically the same size as a carb intended for a 5cc single cylinder engine : the four 5CC cylinders of a 20 CC engine need to be fed one...

Santa has been generous this year and I just receive his gift : this 1M25 Chris Craft is superb and the home made engine inside is very interesting and well made with a high craftmanship. It features a water pump for cooling, a gear box (forward/neutral/reverse) and an interesting hand start...

The mystery engine is running now, here are the 2 videos : -VIDEO#1 : presentation https://www.youtube.com/watch?v=_WpRfFrSl7Q -VIDEO#2 : preparation and running https://www.youtube.com/watch?v=ff9F-qgPUFI

Hello, I just receive this interesting engine, it is unknown to me. Is it made from a known plan or is it a one of a kind from the brain of a skilled machinist? Maybe somebody will identify it?

Good news about this still unknown engine: she's now running ! The general idea was only to check if she's still able to start, not to do a work of art ... As I'm not a machinist and have no idea about the original design of the missing carb and carb intake, I have designed a very simple...

Hello some news about this engine ! I found a similar engine with F-head, a De Dion 1903 (photo 2) whose castings are made by Mr Kornmüller from classic-motors. Then, with my good pal Google I found this very interesting draving from a modern postcard (Zazzle) showing the old cutaway of a...

Hello, I have unscrewed the front housing (no gasket) :I will not go further because it'useless, once again check how the crankcase and the crankshaft are "immaculate", I have not attempted to clean them... Unfortunately, no new suggestions about the design of the timing assy, carb and carb...

The coleman fuel (+ lubricant) was burnt by the OS 61FS that powered the first model aircraft to cross the Atlantic ocean. (duration: 38 hours, read more about this unique feat: http://en.wikipedia.org/wiki/The_Spirit_of_Butts_Farm) However, Wikipedia makes reservations about the use of...

Hi Frank, many thanks for the info: you're right, it's very similar but there is a difference: the Upshur has a side intake that doesn't exists on mine (it's the exhaust stack at the same place!) : I suspect that there was a kind of intake pipe around the atmospheric valve but I don't know...

Hello, I have partially disassembled the engine and I'm happy to show you the result of the strip tease. After unscrewing the 4 nuts without problem, the cylinder comes out easily, the screw holes are perfectly centered. The interior of the crankcase is surprisingly clean and dry...

Hello JW, many thanks for the reply, I just write a post about the engine:http://www.homemodelenginemachinist.com/f26/ioe-engine-21727/ Thank again, Chris

Hello, I'm the new owner of this early marine model engine, maybe one of the first ever made to power a model boat . I collect vintage model engines and I never seen one of this kind before, it comes in a "fresh" condition with a nice patina, I think a cosmetical restoration is not...

Hello everybody, I'm a young retired guy from the deep South of France, and here is my first post. I collect vintage model engines (mainly marine engines) and even if I'm a HMEM subscriber since 2010, I'm unable to turn a toothpick but I love to enjoy your superb realizations... Today I...