Felgiebel 16,6

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F-DS

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Ahoj
Po dlouhém plánování jsem začal stavět dvoudobý benzinový motor Felgiebel. Připravoval jsem se na stavbu motoru dva roky a poté, co jsem dostal plány, zkušenosti s konstrukcí dalších motorů a pístní kroužky, mohl jsem začít svůj nápad naplňovat. Svou konstrukci jsem zahájil vytvořením válce.

Motor má neobvyklý objem válce 16,6 ccm, protože použití prstenů pro větší vrtání. Kroužky o průměru 26 mm jsou pro mě nedostupné, protože jsem použil možnosti prsteny o průměru 28 mm.
DS
 
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Turning of cylinder and rib contours.
 
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ahoj z akeho materialu si robil kruzky?
what material did you use for piston rings production?
 
ahoj z akeho materialu si robil kruzky?
what material did you use for piston rings production?

Kroužky jsem koupil od české firmy "Piston Rings Komarov s.r.o". Právě kroužky jsem začal shánět jako úplně první a od rozměru kroužků, které jsem sehnal jsem upravil obsah válce.
I bought the rings from the Czech company "Piston Rings Komarov s.r.o". Just the rings I started looking for the very first and from the size of the rings that I got I modified the contents of the cylinder.
 
I fit the transfer channel to the cylinder. Now I'll try to make a new carburetor.

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Very neat work. I am envious.

Cheers,

Andrew in Melbourne
 
Extension of carburetor throat-attempt number two.
The throat had to be repeatedly heated by the burner to light red and then tap the thorn with small knocks.


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Preparing for soldering.
I made a fixture to attach the carburetor to the cylinder. It holds the transfer channel itself as it is pressed. I insured him with a wire anyway. After a long deliberation, I made an unplanned exhaust flange.
Before soldering, I coated the soldered places with a mixture of borax and alcohol.

I can provide my own sketch on the flange.

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Cylinder just after soldering. He's not cleared of borax yet. I soldered with silver, soldering itself lasted about 30 minutes and there was no need to heat the cylinder red.

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A tricky brazing job and well executed. Did everything end up in the desired positions?

No, thanks to the necessary preparation, nothing moved. I was surprised how everything went according to plan.
Perhaps only the exhaust flange wanted to secure against sliding down.
 
I never used Borax, but the flux I used from Felder was quite well removable with a 15% sulfuric acid. Heated up to about 30-40°C. Take care, use gloves and glasses!
 
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