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Cox Engine of The Month
November-2024
Kim's

"A Space Bug Jr. pulls the Q-Tee up high over Sky Tiger Field"



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CEF Traveling Engine

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Santa Phred deal of 2021 Empty
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Santa Phred deal of 2021

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Thinking Santa Phred deal of 2021

Post  fredvon4 Wed Dec 15, 2021 7:08 pm

kariFS won a half price .15 with proper guess about missing piston


Attached is a photo of 4 NEW un mounted and un run Cox engines

1 TeeDee .10 still for sale $100



1 PeeWee .20 sold
2 Exh Throttle Medallion .15s in damaged (cracks) crystal cases

1 of these engines has a fatal flaw

in aggregate about  $400+/- worth of engines

Each is for sale at Santa Phred seasonal pricing
Each spoken for by a CEF member will be shipped with a very cool select engine or other bauble from my dwindling
"junk Barrel"

Between NOW and 10 AM Friday 17 Dec 2001 any member may ask for any engine at my special holiday price Date and Time of PM or post in thread will determine first right of refusal

As I cant mail until Monday 20th
this game/sale is extended until I head into the house Dec 19th Sunday night 8PM central time


However I stated ONE of these engines has a fatal flaw

Any member that can guess which engine and exactly the fatal flaw …if true guess.. may select any other un spoken for engine at Half my special holiday price

Each Medallion is offered for $85 good one sold missing piston is best offer as parts engine
The TeeDee .10 is offered for $100
The PeeWee .20 and extra glow head is offered for $60

I promise not to sale the fatal flaw engine to any member with out full disclosure and significantly reduced cost

At 1200 Hours Friday 17 Dec CST I will disclose the Fatal Flaw engine

Hint...the flaw is a distinct factory defect rendering the engine unusable for it's intended use

I have no desire to try to determine which if any are Estes Vs Leroy Cox Mfg

I promise all that the fatal flaw with leave every member wondering how the hell did they do that!

Santa Phred deal of 2021 20211210


Last edited by fredvon4 on Thu Dec 16, 2021 1:26 pm; edited 2 times in total (Reason for editing : change end date)
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Thinking cox .010

Post  jiim welch Wed Dec 15, 2021 7:44 pm

Fred...i'm addicted I want the .010 . I suspect one of the medallions has an unfinished crankshaft with no window opening. My best guess. RC Plane
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Wed Dec 15, 2021 7:59 pm

Jim has first right of refusal on the TeeDee.10 but no joy on half price, wrong guess. Feel free to keep guessing
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Wed Dec 15, 2021 8:02 pm

8 pm here so heading to house with dogs to watch tv. Back at 6AM central tomorrow 16th
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Thinking Re: Santa Phred deal of 2021

Post  Marleysky Wed Dec 15, 2021 8:18 pm

Just for kicks and giggles, my guess is that the PeeWee 020 cylinder does not have internal porting.

How many guesses are allowed??
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Thinking Re: Santa Phred deal of 2021

Post  rdw777 Wed Dec 15, 2021 8:29 pm

Hole in the PeeWee .020 tank?…. Probably just light reflection on the packaging…
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Thinking Re: Santa Phred deal of 2021

Post  davidll1984 Thu Dec 16, 2021 2:05 am

Me a hole in the tank that's not what would prevent me from using it Smile  Huh...  Strange this crankcase on the .15 it looks like the cover does not close or just improperly closed? Another .15 in my collection would be good Good or bad I dont have a medallion engine at all I never manage to find one for cheap I am broke Especially after buying new tools like a lathe the kind of tool that needs a lot more Accessory of all kinds To work with
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Thinking Re: Santa Phred deal of 2021

Post  Levent Suberk Thu Dec 16, 2021 6:13 am

I'm thinking: "If defect can be seen from outside of engine, then Fred do not buy it, so I can guess that flaw is in inside of engine. But which one? .010 TD can not be, because it is in it's box with a tie. Fred didn't examine it. Prices don't give any clue. Perhaps Pee Wee has a factory defect, but what? .15 Medallion in opened box at the middle may be, because Fred wanted to point the defective engine. So I'll guess it"

Fred, that .15 Medallion at the middle has a broken needle valve assembly. Very Happy
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 7:08 am

No correct guesses, TeeDee .10 is spoken for

both 15s cracked jewel cases were opened so I could see if they had instructions and tools. One has instruction and 2 cox 15 wrenches, the other, 1 wrench and cox stickers

The peewee bubble is stapled down two places so I did not open it

The TeeDee .10 has wrenches, prop, instructions

the engine with defect from factory is 100% correctable

I did not first hand see the fatal flaw.
The original owner fully disclosed the flaw and I deliberately bought it pre thinking some guessing contest.
How Cox or Estes managed to sell with this flaw is a head scratcher

each successful purchase will include something from my stash of Cox items none will be less than $40 value

1 guess per post, guess as many times as you want but remember CEF is gentlemanly site. Flooding with guesses places me in the position to slog through and answer in a timely manner

As I cant mail until Monday 20th
this game/sale is extended until I head into the house Dec 19th Sunday night 8PM central time
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Thinking Re: Santa Phred deal of 2021

Post  getback Thu Dec 16, 2021 7:13 am

y guess is the Medallion .15 in the clear case to the right , looks like something sticking out the CC under the mounting lug RT front maybe the rod ? Rudolph
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Thinking Re: Santa Phred deal of 2021

Post  cstatman Thu Dec 16, 2021 9:53 am

i'd like to buy the 20 if available

the fatal flaw is obvious.

none are mounted on a plane in my shop, getting ready to fly?


OR -

the TD20 comes with spare glow plug because original glo plug has no element.
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 10:00 am

cstatman has first right of refusal on the PeeWee.20

you may buy it now our add a few guesses to see if it is half price to you

there are still NO correct guesses
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Thinking Re: Santa Phred deal of 2021

Post  KariFS Thu Dec 16, 2021 10:25 am

I am interested in one of the Medallions. That is, if you’re OK with shipping it to Finland (at my cost of course). My guess for the fatally flawed is the TeeDee .010, having the ball joint pressed in too tight.

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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 10:33 am

KariFS has first right of refusal on one of the Cox .15 medallions

PM me your physical address so I can work up what shipping looks like

My software requires me to add a country specific Harmonization code I have to look up on our state department export web site but should be no problem

You guess is wrong You may continue to guess ad see if the engine is yours for half price
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Thinking Re: Santa Phred deal of 2021

Post  crankbndr Thu Dec 16, 2021 11:12 am

The flaw has got to be in the .010. I guess no element in the head.
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 11:55 am

Wrong guess

PeeWee 20 is sold at may asking price so off the block and it did not have the dreaded confounding fatal flaw thus one of the remaining engines has it.
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Thinking Re: Santa Phred deal of 2021

Post  KariFS Thu Dec 16, 2021 12:03 pm

100% Correctable Huh... A part missing maybe? Only internal part that could be missing without it readily showing to the outside would be the piston. I can see the piston on the Tee Dee, so it must be a Medallion missing the piston. The one in the middle, can I see inside the cylinder? The shade of metal looks a bit dark for a piston Shocked

Sounds crazy, but also quite fatal.
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 12:11 pm

We have a winner!!

KariFS guessed correctly
Cox made and sold a perfect >15 Medallion forgetting to install a piston and rod

Obviously FariFS desires the Good .15 for half price would like to get in mail today so please send me a good address ASAP
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 12:15 pm

So we have a good to go TeeDee 10 for sale and a good Medallion worth a lot in new parts

$100 for a new TeeDee .10 is a great deal IMO

Will take offers on the Medallion .15 parts engine

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Thinking Re: Santa Phred deal of 2021

Post  Levent Suberk Thu Dec 16, 2021 12:24 pm

How do you know that "Cox made and sold a perfect >15 Medallion forgetting to install a piston and rod" ?
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 12:42 pm

Because the gentleman selling it to me told me he bought it in a hobby shop some years ago. It was sitting in his spare engine cabinet until this year, deciding recentlyto sell off all his never going to be used engines.

When he dropped in and nearly destroyed the crystal case it was open so he turned the shaft to see if it was locked up.....it spun freely with NO compression so he unscrewed the back plate and wa la no piston assy

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Thinking Re: Santa Phred deal of 2021

Post  Levent Suberk Thu Dec 16, 2021 1:12 pm

An engine without piston/rod assembly left factory. Very interesting.
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Thinking Re: Santa Phred deal of 2021

Post  KariFS Thu Dec 16, 2021 1:19 pm

fredvon4 wrote:We have a winner!!

KariFS guessed correctly
Cox made and sold a perfect >15 Medallion forgetting to install a piston and rod

Obviously FariFS desires the Good .15 for half price would like to get in mail today so please send me a good address ASAP

Cooool! Yes, I’d prefer the complete one Very Happy I’ll pm you with my address shortly Santa

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Thinking Re: Santa Phred deal of 2021

Post  davidll1984 Thu Dec 16, 2021 5:49 pm

Is the piston from a sportsman .15 fit ???rc médallion Huh...
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Thinking Re: Santa Phred deal of 2021

Post  fredvon4 Thu Dec 16, 2021 6:03 pm

I really don't know, I assume diameter exact but con rod length might not be the same
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Thinking Re: Santa Phred deal of 2021

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