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Old Aug 07, 2012, 11:56 PM
FPV-ophile
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United States, TN, Greeneville
Joined Oct 2010
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Help me identify this Cox .049/.051 engine??

Hey guys,

One of my buddies gave me a load of nitro stuff and i was looking through it and found these two .049/.051 engines. One of my other friends told me that they are kinda rare.

I just wanted to see if anyone could identify these? My friend said they could be original or remakes...
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Old Aug 08, 2012, 12:20 AM
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United States, TN, Greeneville
Joined Oct 2010
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Alright, so after more research i'm quite sure these are Cox .051 Tee Dee engines. Is this correct?
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Old Aug 08, 2012, 09:41 AM
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The red plastic on the motor and the red pastic tank sure looks like a TD .051 to me.
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Old Aug 08, 2012, 10:29 AM
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United States, CA, Gardena
Joined Oct 2004
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To be sure, the .051 has a groove cut into the piston skirt. Visible at or near TDC.

- Norm
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Old Aug 08, 2012, 10:55 AM
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United States, TN, Greeneville
Joined Oct 2010
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Alright, thanks guys! Turns out these are in fact Cox .051 TD engines! Any idea what these two together would be worth?

Thanks!
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Old Aug 08, 2012, 12:58 PM
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$5 shipped to me
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Old Aug 08, 2012, 12:59 PM
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United States, TN, Greeneville
Joined Oct 2010
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haha, nice try Mr.


Quote:
Originally Posted by KajunKombat View Post
$5 shipped to me
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Old Aug 08, 2012, 05:46 PM
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Actually. Youd get a decently shined penny for them!!
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Old Aug 08, 2012, 07:03 PM
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United States, TN, Greeneville
Joined Oct 2010
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Hmmmmm.....how shiny is this penny exactly?



Quote:
Originally Posted by KajunKombat View Post
Actually. Youd get a decently shined penny for them!!
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Old Aug 08, 2012, 08:25 PM
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Neenah, Wisconsin, United States
Joined Jun 2004
571 Posts
Depends on the condition of the red carb body. If it is cracked where the venturi screws into then it will have to be replaced. New red plastic ones are available from MECOA and replacement red aluminum ones are available from Cox International. If the glow heads work is a + and they are of the high compression version. They should have knurling on the top of the glow head.

The complete engine with the prop and plastic tank mount is from $35 to $45 depending on the overall condition of the engine and if the glow head works.

The engine missing the glow head is from $20 to $30 depending on the overall condition of the engine.

Also the Cox tank mount is worth about $10 alone if its not cracked or leaking.
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Old Aug 08, 2012, 08:38 PM
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United States, TN, Greeneville
Joined Oct 2010
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Ok so the complete engine is the high compression version and the red carb body is completely in tact.

The other incomplete engine is cracked where the venturi screws in.

Also, the Cox tank mount is completely fine and not cracked or leaking.

Thanks everyone for your help! Much appreciated!
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Old Aug 15, 2012, 11:25 PM
Pedro Salomón
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Joined Apr 2005
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check coxengines.ca
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Old Aug 21, 2012, 11:17 PM
Culper Junior
eastern pa
Joined Feb 2007
2,185 Posts
Here you go. Just click on TeeDee on the left panel...

http://www.mh-aerotools.de/airfoils/cox_frameset.htm
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Old Aug 22, 2012, 11:05 AM
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Canada, ON, Cottam
Joined Jan 2012
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I don't think any of the Cox stuff is rare if made from the mid 1960's and up.. There were a lot of them made. There is a demand for them still though. Nostalgia I guess. A lot of fields require a muffler, and they don't really accomodate that well. Electrics have kind of taken over the .15 and under size, so the smaller stuff is readily available at swap meets, and quite cheap sometimes. Some people refuse to give in to the electrics and still use the nitro stuff.(Myself included)
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Old Aug 22, 2012, 12:27 PM
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United States, CA, Ukiah
Joined Dec 2011
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You guys are going to cause me to find my old COX engine stash! I know I have a bunch of them, all vintage, many nib, and include a few pee wee .010's, lots of .020s and a plethora of .049's and .051s.

Mendo
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