Alcyon A.S 1939

:

Welcome . Ah ouais alors comme my english  is véry rouillé   , alors i am compris ça  :
" Salut, je viens d'avoir  cette  A.3,  ( AS3 ) ? .Je pense que le moteur et la boîte de vitesses ont été changés,  la boîte de vitesses  elle est à 3 vitesses. j'ai besoin de quelques pièces  , repose-pied ".
Si vous en comprenez plus n'hésiter pas à l'aider , en tout cas son  Alcyon en vaut la peine     . bon evidemment il aurait du passer avant , par la rubrique " présentation " mais bon , ne lui en tenons pas rigueur ...
aromax

Sorry if I have done things the wrong way , but I know very little French ,
Even thou there is some French in me , my relatives moved from France too England , just a few years back , in 1323

Hello friend and welcome here.

I have moved the subject to put it here https://30kmh.forumactif.com/f4-les-bma-du-groupe-gentil, where it belongs better.
If it turns out that this machine is post-war, which I doubt, I will move it again. There are greater specialists than me in the field of Alcyon.
In any case, I'm not surprised to find a three-speed gearbox on this model.

For the translation, I can't take credit for it since I use this site.

Translated with www.DeepL.com/Translator (free version) https://www.deepl.com/fr/translator#fr/en/Bienvenue%20chez%20nous%20l'ami%20!%20%0A%0AJe%20ne%20suis%20pas%20assez%20cal%C3%A9%20en%20mod%C3%A8les%20de%20chez%20Alcyon%2C%20mais%20je%20ne%20suis%20pas%20%C3%A9tonn%C3%A9%20que%20la%20bo%C3%AEte%20de%20vitesses%20soit%20%C3%A0%20trois%20rapports.%20%0AQue%20pensais-tu%20trouver%20%C3%A0%20la%20place%2C%20une%20deux%20vitesses%20%3F%20Une%20quatre%20vitesses%20%3F%0APas%20d'inqui%C3%A9tudes%2C%20il%20y%20a%20ici%20des%20gens%20qui%20pourront%20s%C3%BBrement%20te%20renseigner%20mieux%20que%20je%20ne%20puis%20le%20faire.%0A%0AQuant%20%C3%A0%20mon%20anglais%2C%20je%20n'y%20ai%20aucun%20m%C3%A9rite%20puisque%20je%20passe%20par%20ce%20site%20de%20traduction%20qui%20n'est%20pas%20mal%20du%20tout%20%3A%20%0A%0A

and even if this link is larger than others it is no less useful and with great qualities.

I think you should have some interesting answers .....

LPDC.

A Aromax. (et aux autres)

Non, bien entendu, mon anglais n'est pas aussi "savant" qu'il puisse le sembler ! .....
Ce lien est assez volumineux mais c'est pourtant celui d'un excellent site de traduction que j'utilise dans les deux sens. Je vous laisse le découvrir si vous ne le connaissiez pas. Vous pourrez au moins comprendre ce dont nous parle notre nouvelle "recrue" .....

LPDC.

I have done a little research after I found the frame id , bike is a A.S , that makes it from 1938 to 1940 .


 

New tyres , Coin in top yoke .

ll engines of this kind at Alcyon seem to have the same 50 X 50 m/m characteristics.
This makes them 98.18 Cm/3 and yours is obviously no exception.
As for the frame plate, it is regrettable that we cannot better distinguish the characters that are stamped on it.
It is also curious that it is simply stamped "AS" without any further characters.
To my knowledge all AS types are "single speed" and I don't think that single speed bikes have been built with this "small motorbike" aspect.
So I could also be wrong, but .....

Question :
- What reason do you have for thinking that the gearbox may have been replaced ?
- Can you put a picture of the gearshift attachment under the tank?

Thank you in advance.

LPDC.

Hello Residentalian ;
And Welcome to this forum!
Nice little Alcyon !
...and I would like to thank Lapétarelleducoin for the tip about this translation site that I didn't know ...because the English language and me

When you don't own one or more Alcyon specimens of the 100 cc category yourself, following the evolution of this category seems rather complex.

I find here, https://30kmh.forumactif.com/t1709-alcyon-100cc-type-as on this forum, this Alcyon which is identical to yours and also given for an AS by Nicopad who especially came to show us his work before disappearing ......
As for its frame plate, it is as unreadable as yours !
Despite everything, we can still deduce that yours is probably not as modified as you seem to think, especially concerning the gearbox.

The frame part strongly resembles that of the later released Type 23 125 cc 125 cc frame with cast iron cylinder engine and round base plate, whereas these "AS" are still both equipped with an aluminium-lined cylinder with square base plate.
This would be one of the first models marketed in 125 cc but with a lined aluminium cylinder engine.

Only the removal of the cylinder head could make it possible to determine the bore and stroke of what still looks like a 100 cc engine.
Personally, I think it is one.
But if it is one, then it can't be an AS unless it is deliberately imprecise and for some reason we don't know. (Production in times of war, for example, when certain manufacturers seemed to deliberately sow confusion with regard to the German occupying forces who restricted all production).
But it's only my opinion that is worth what it's worth! .....

As an indication, the part of the rear mudguard painted white was made compulsory (from memory) in October 1939. It seems to have remained so until 1948, when it was replaced by a red reflector.
This obligation was respected by some manufacturers, such as those of Vélosolex, but was soon abandoned by others ......
If it can be defined that this white part was not added to the brush afterwards, there is every reason to believe that this machine dates back to the 1939/41 period since this obligation seems to have been abandoned very early on leaving the factory.
Logic my dear watson? .....

LPDC.

(SEINE) COURBEVOIE (SEINE)   TYPE A.S  and the frame number

I was working on the bike yesterday , front brake cable , and noticed a nipple sticking out  thought nothing of it , then today I noticed another one ,    

then it hit me  locations for hand pump



:

Then it's perfect!

What are the tyre dimensions?

LPDC.

I matched the size and make of the new tyre that was fitted on the front , 2.50 x 19 !

Well that's perfect.

It corresponds to the old French (and metric) denomination of this period of 600 X 65 m/m.
600 m/m of approximate outside diameter of the inflated tyre, for 65 m/m of average section. This is for a diameter over the rim span of 484 m/m (+/-) 19".

LPDC.

I still have and will keep the old tyre with the bike , writing is only on one side of tyre , other side is plain !

cool

Indeed, it is indeed a 100 cc! (50x50 m/m)

LPDC.

Hi , looking on a web sight I see a list of models and specifications , what does no,sprinklers mean ?


Clutch

Discs

Carburetor

no.sprinklers

Nozzle

Ignition

calibration-mm-or-or-t

Admission

Exha

Seat post

!

Here, for example: http://jmberard.chez.com/carburat2.htm
the sprinkler is part number 1031

In English: Nozzle (the nozzle) = (element with a calibrated hole that adjusts the fuel flow rate according to the volume of air admitted)
No sprinklers = no jets

LPDC.

Thank you , carb is a little diffrent to my Gurtner , but I now know what a sprinkler is , we call it a Jet .
On my carb there is no 303, but the engine run ok !

Not sure when

As far as needle 303 is concerned, it depends on the carburettor and on the planned equipment. It can vary. The main thing is to respect the settings and as much as possible.
Then the page on which my example was taken does not correspond to your Alcyon. It's just a page to take the example of the jet concerning the one of a gurtner looking like this.

For the gearbox I think it's not an adaptation, but that's just my but that's just my opinion. And if after extending the control unit and adjusting it, it works properly, then perhaps it was the gearbox that could be modified. Who knows?

LPDC.

Nota/ Do not hesitate to reread my posts that I sometimes modify afterwards for a better understanding of the text or to correct omissions or mistakes.