Karl-Erik Olsryds 2 cylinder boxer engine.

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Cogsy

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Welcome to the forum. Those are some nice looking castings and an interesting looking engine too. I'll be following along with your build.
 

e.picler

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Hi Karl!
Welcome to the forum team.
I will be following your project with close interest. The kit looks interesting.
Is this casting kit available on the marketing?
Good luck!

Edi
 

bengt-olausson

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Hi !
No I dont think so, the designer of this engine was Karl-Erik Olsryd. He lived in Sweden
I think he was at least 70 years old 1996, when he did this castings.
He made a lot of engines the most known was a 9 cyl radial WRIGHT engine.

Bengt
 

bengt-olausson

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¨Hi Jef. Thank for your kind words.
The steel is SS2541 equal to 34CrNiMoS6.
C 0,3-0,38
Si 0,15-0,40
Mn 06´,60-0,80
P max 0,025
S 0,02-0,035
Cr 1,30-1,70
Ni 1,30-1,70
Mo 0,15-0,30
Hardened to 340-400 Hb.

Bengt
 

jef-lemmens

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¨Hi Jef. Thank for your kind words.
The steel is SS2541 equal to 34CrNiMoS6.
C 0,3-0,38
Si 0,15-0,40
Mn 06´,60-0,80
P max 0,025
S 0,02-0,035
Cr 1,30-1,70
Ni 1,30-1,70
Mo 0,15-0,30
Hardened to 340-400 Hb.

Bengt
Thanks Bengt , I use most of the time 42CrMo4 for crancshaft and cilinders (for 2 stroke petrol and diesel engines)

Regards Jef

Nova 061.jpg
 

arc

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Very nice work! You are really making some headway.
 

petertha

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Very nice work!

Can you tell me about your valve cages. Are they bronze? Pressed in place or held with adhesive like Locktite? I'm interested to see your chamfering tool & the valves when they come along.

ps - just for interest, a 1/4 scale Wright J5 9 radial of the same designer is being built in Japan. He mentioned he had the casting & plans about 10 years before starting.
http://modelicengine.la.coocan.jp/j5140402.html
 

bengt-olausson

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Thanks.
The valve cages is made of bronze and held in place with a nut. Probably I will fix them with Loctite 271 when I assembly the engine.
The Wright Radial is very nice engine. I have the drawings but I never bought any castings. I regret that now.
I bought the castings for the Boxer engine at Christmas time 2016 from a guy that had them for many years, but newer start machining them.

IMG_1923.jpg
 
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