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Cox Engine of The Month

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Franken engine

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Franken engine

Post  fit90 on Sun Aug 13, 2017 4:26 pm

Or "It's alive!"

Several months ago I was fiddling around with a dieselized .09 Medallion. In a fit of supreme brainliness, I over compressed the day lights out of it. I ended up breaking the crank shaft and conrod/piston. I was finally able to get all the parts I needed/wanted to get it running again. It is now a Cox .09 Medallion with a Tee Dee spinner, crank shaft and piston/cylinder. When coupled with a Medallion glow head, one head gasket, Sig Champion 25 and a Cox 7x3 prop it will happily turn 13,950 RPM steadily through a complete ounce of fuel, which takes five minutes and ten seconds to burn. It is a good, steady runner. What do you guys think? Is this a good performer or did I waste the time, effort and money?
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Re: Franken engine

Post  NEW222 on Sun Aug 13, 2017 8:39 pm

I would like to say in my opinion, you will have a very nice 'runner'. As well, I do not see there being any waste of time and money if you are happy with it when it comes to these little gems!
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Re: Franken engine

Post  RknRusty on Sun Aug 13, 2017 10:40 pm

I agree, that ought to be a tough little powerplant.

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Re: Franken engine

Post  KariFS on Mon Aug 14, 2017 4:40 am

I have heard that a common mod for Tee Dee 049s is to replace the carburetor with a Medallion unit. You lose some power, maybe, but fuel draw, starting and overall handling is easier than with a Tee Dee, and you still have a lot more power than a standard Medallion.

You have done essentially the same thing in .09 size, sounds good Thumbs Up
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