Author Topic: Whats this engine in 1930's Monet Goyon  (Read 52 times)

Offline Jonny The Goat

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Whats this engine in 1930's Monet Goyon
« on: January 15, 2018, 07:02:34 PM »
Hi, In my garage I have this old French bike. Its a 1930 Monet Goyon S17 with a incorrect tank on. Never really do much with it but I sort of like it. I have never been able to find out what the engine is. Its not correct for the bike as been on the French MG site in the past. No one there could ID it. I was told when I bought the bike it was a Villiers 250R, have not been able to find that engine ether and it looks a bit small to be 250 but have not had it apart to sure. Its a twin port with a nice bronze Amac carb. The exhaust connections at the head are screw threaded. The number I can see is very worn. Any ideas ? 

Offline mini-me

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Re: Whats this engine in 1930's Monet Goyon
« Reply #1 on: January 15, 2018, 09:05:23 PM »
Its a 250cc Ancre de Bateau.

Offline Rex

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Re: Whats this engine in 1930's Monet Goyon
« Reply #2 on: January 16, 2018, 09:21:12 AM »
Wrong model...this one's a 200cc Port-Stoppeur...

Offline 33d6

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Re: Whats this engine in 1930's Monet Goyon
« Reply #3 on: January 16, 2018, 09:45:21 AM »
Hi Jonny,
You'll be looking a long time for a Villiers 250R. They are so rare that Villiers didn't list them in any of their factory literature. Unlike all their other engines they never put out an operators handbook nor printed a spare parts list nor put them in any catalogue. If they were still around Villiers would even flatly tell you they don't exist.
Cheers,

Offline mini-me

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Re: Whats this engine in 1930's Monet Goyon
« Reply #4 on: January 16, 2018, 10:08:58 AM »
http://www.mig-welding.co.uk/forum/threads/vintage-2-stroke-bike.56837/ :o :o :o ;) ;) ;)


A lot of French bikes used Villiers engines; Villiers engines were used in all sorts of industrial/agricultural uses.

  edit  I notice yours has a non detachable head, probably off a mower or the like.

France was a bit hard up in the 1930s, then there was that bit of embarrassment 1940-45 which did not help, the 50s were also hard economically. After 80 years its assuming a lot to believe all that iron belongs together, its probably a bitza, and looks to me as if the model number has been modified with a file.

I have seen some ingenious and appalling mods from the hard up or tight fisted to keep transport running from those eras. Somewhere I have a photo taken in Spain of a OHC Sq4 lashed up as a Harley look alike; you'd not believe such bodgery could be mobile.

The god of originality does not work everywhere there is an old bike.

Its a dog, but its yours to love.

PS that carb is not all Amac either,
« Last Edit: January 16, 2018, 05:25:36 PM by mini-me »

Offline mini-me

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Re: Whats this engine in 1930's Monet Goyon
« Reply #5 on: January 16, 2018, 05:17:37 PM »
Monet Goyon 1930 with Villiers Brooklands  engine.

Offline mini-me

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Re: Whats this engine in 1930's Monet Goyon
« Reply #6 on: January 16, 2018, 05:23:40 PM »
other side