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Tee Dee .049 on steroids

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Post  jsesere Sun Jul 14, 2013 6:55 pm

http://www.ebay.com/itm/COX-TD-049-SPARK-IGNITION-ENGINE-VERY-NICE-AND-RARE-CONVERSION-/151081706432?pt=UK_ToysGames_RadioControlled_JN&hash=item232d2be3c0
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Post  RknRusty Sun Jul 14, 2013 7:38 pm

It probably runs good. Gasoline and oil(castor I hope), according to the seller. It's too much stuff to break for my applications though.

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Post  ahrma_581 Sun Jul 14, 2013 8:31 pm

Nicely crafted, but I'd think going from 25% nitro fuel to gas it is more like 'Tee Dee .049 on estrogen'! Smile

Did you notice the two small (.15cc and .25cc) diesels he also listed?
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Post  tru168 Wed Jul 17, 2013 5:38 am

I think its not practical in planes, just an experiment set. gasoline at 049 displacement can't pump out much horse power, It might run stable , but under powered.
Add weighs from spark ignition coils and battery, I think it only can fly a glider than any sport planes.
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Post  Basher Thu Jul 18, 2013 6:05 pm

The price on that thing jumped from some $4.00 and change (US) to $109 and change overnight! Shocked 
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Post  Jason_WI Thu Jul 18, 2013 6:58 pm

Someone wants it bad. I bet it will fetch $200 to $300.

I bet the oil he was revering to is 30wt 2 stroke oil at around 16:1 mix. Castor doesn't mix well with gasoline.
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Post  pkrankow Thu Jul 18, 2013 10:38 pm

Jason_WI wrote:Someone wants it bad. I bet it will fetch $200 to $300.

I bet the oil he was revering to is 30wt 2 stroke oil at around 16:1 mix. Castor doesn't mix well with gasoline.

That is probably a safe ratio.  Modern 2-stroke oils are much superior to straight weight non-detergent oils of days past.

In my antique Johnson 3hp I run modern 2-stroke oil at 24:1.  With appropriate modern oil this is probably a safe ratio.  A name brand lawn equipment or chainsaw 2-stroke oil is what I would suggest, and absolutely not run lighter oil load than this.

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