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Post  daviddiag Tue Apr 24, 2012 10:27 am

I have looked at posts that came up when I did internal search for cylinder identification, and found the wikopedia sight that has a chart with drawings.They list #1, #2, and no marks. I have an old cylinder from a Golden Bee that is stamped 3. Where can I find info to identify cylinders?

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Post  Admin Tue Apr 24, 2012 11:59 am

Cylinders stamped with the #3 has been seen on many different engines. Can we see a picture? I have a cylinder list currently only for .049 and .051 here http://sites.google.com/site/coxenginecollection/choosing-a-cylinder

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Post  andrew Tue Apr 24, 2012 12:02 pm

Here is a pen and ink drawing for cylinders 1 - 4. I cannot vouch for the accuracy of the designations.

cylinder identification Cox_cy10
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Post  daviddiag Tue Apr 24, 2012 12:07 pm

Thanks Andrew, this is just what I was looking for. Excellent info!

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Post  nitroairplane Tue Apr 24, 2012 12:10 pm

andrew wrote:Here is a pen and ink drawing for cylinders 1 - 4. I cannot vouch for the accuracy of the designations.

cylinder identification Cox_cy10
One problem I have, now mind you this is just me being particular.
The NO.4 cyl appears to have either a larger bore or smaller head diameter the the others.
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Post  andrew Tue Apr 24, 2012 12:25 pm

nitroairplane wrote:One problem I have, now mind you this is just me being particular.
The NO.4 cyl appears to have either a larger bore or smaller head diameter the the others.

I believe the head threads were drawn undersized --- the cylinders are all the same diameter. I'm inclined to think the drawing was more for showing the bypass and boost ports and the cylinder shoulders.
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Post  John Goddard Tue Apr 24, 2012 12:32 pm

I think that may be the diagram that transposes all the numbers to different cylinders.
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Post  daviddiag Tue Apr 24, 2012 1:59 pm

I think the #4 cyl in drawings is for very early engines. Pre Babe Bee? I read somewhere that the cyl head threads were smaller.
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