Denis Moindrault, TAVERNY France didou-bike@wanadoo.fr
This is submission for my new 0.75 motors in homemade casting
first I'm make connecting rod :
And now the crankcases for made 2strokes or 4strokes motor (same crankcase) :
Also it's the same crankcase for right or left, I'm think for 4stroke
I will use syncro pulley and syncro belt for drive valves
Thanks Denis France near Paris
11/17/2007
All inside crankcase metal machining are doing in one time

You can see a female edge on the left crankcase and a male edge on the right crankcase for good centre

For be sure than cylinder will be perpendicular with the crankshaft I
made a special lathe's tool . A pin is inside the ball bearing

Crankcases ready

11/24/2007
Yes I made myself
aluminum-casting, I made my own propane furnace and pattern, you
can see here :
http://projets.denis.monsite.wanadoo.fr/page5.html (in french
sorry)
12/17/2007
Connecting road finish with bearing

Crankshaft ready to be assemble the pin coming from moped hardened
piston pin 
Crankshaft assembled

A friend off mine who working with a cnc lathe made for me
cylinder parts 
For 2stroke moteur it will be necessary to drill it

Cylinder in 2parts assembled

Crankcases modify for 2srtoke

Motor with 1/2 crankcase removed for see inside

inlet 2stroke valve

2/4/2008
> I am cast pistons whith old motorcycle pistons, I made a special machine for cast them. I melt aluminium liquid in the meal mod and I press.




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> Cylinder head in aluminium casting
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> Last motor progress
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> Also I draw motor in CAD>
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And now the moteur is runing
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!>
http://www.dailymotion.com/didou-bike/video/x47fw7_1505081mvi_tech
>
http://www.dailymotion.com/didou-bike/video/x47fyo_1505082mvi_techr
>
Denis
3/16/2008
This is my new submission for the 0.75 homemade motor (always the same motor) :
I am made a hand puller :



Also I am made a centrifugal clutch with teflon parts :


I am made a homemade 1/7 Cox for run my homemade motors (all is homemade except : boby, weels, shok absorber, mufler)




And now i am working on a homemade carburetor, it will be finish in few days
Thanks Denis
Copyright 2007-8, Florida Association of Model Engineers and engine builder as noted above, All rights reserved.