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Cox Engine of The Month
February-2024
1/2A Nut's

"RC Speed Boat Power Drive TD .020"

More info on this engine!




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One that got away, two that didn't Empty One that got away, two that didn't

Post  rsv1cox Sun Mar 25, 2018 8:09 am

I really hated to let this one go but it would have been $50 +.  I would like to see how it was configured and how efficient the throttle was.  Anyone here pick it up?

One that got away, two that didn't Cox_gb16

One that got away, two that didn't Cox_gb17

Instead I opted for this lump of an engine, one that I do hot have and could perhaps be configured to fit one of Marks Mustangs.

One that got away, two that didn't Cox_lu11

One that got away, two that didn't Cox_lu12

And this "quiet" engine with a 8cc tank.

One that got away, two that didn't Cox_8c10














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Post  getback Sun Mar 25, 2018 8:24 am

I seen that one too Bob , hope someone here got it and will take the time to post , the car engine will work fine in Marks ford lol Easter Bunny but you will need to clean it for him first , maybe a basket for him Easter Bunny Very Happy
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Post  Mudhen Sun Mar 25, 2018 8:29 am

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Last edited by Mudhen on Tue Nov 16, 2021 1:34 pm; edited 1 time in total
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Post  rsv1cox Sun Mar 25, 2018 9:11 am

Well Mud, you have returned the favor and put me in a good mood.  It's not often that I make the right decision. Smile

"Lump" is a commonly used term in the MG world to describe the various tractor based engines of some MG's.  The 1800CC engine of the MGB in particular.  Especially if it is nasty, dirty, and in need of repair

Thanks to you and Eric for your comments, something I would have never known otherwise.

One that got away, two that didn't Cox_lu13

A lump

One that got away, two that didn't Mgb_en11

A lump cleaned up

One that got away, two that didn't Mgb_en10
Bob
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Post  balogh Sun Mar 25, 2018 9:26 am

Bob the gold anodized 049 Bee is similar to the 074 Queen Bee  configuration except the RC carb here is a Tarno carb the same as I have on my TD049 powering the TeeDeeVooDoo.

The carb throttles better than the genuine TD050 RC carb and is also a bit better engineered in as much as the rhrottle adjustment screw is rather sloppy in the COX carb and with vibrations further widening the thread in the carb body it is easy to lose it.

I guess otherwise the gold engine should work assuming rhe reed backplate is OK.

The Tarno carb alone, when available at all, sells on ebay beween 30- 40 bucks.
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Post  NEW222 Sun Mar 25, 2018 1:01 pm

rsv1cox wrote:And this "quiet" engine with a 8cc tank.
One that got away, two that didn't Cox_8c10

I have a question regarding the 'quiet' engine. In its configuration, what seperates it from a Black Widow or Golden Bee? I am assuming the differences between from the Black Widow is teh cylinder? And difference from the Golden Bee the color? Probably a silly question for those with more knowledge, but I myself, am unsure. Thank you.
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Post  NEW222 Sun Mar 25, 2018 1:02 pm

And of course, the muffler would be a difference from those as well. I am fairly confident on the obvious.... Very Happy

And both are nice looking little engines as well!
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Post  rsv1cox Sun Mar 25, 2018 2:36 pm

NEW222 wrote:And of course, the muffler would be a difference from those as well. I am fairly confident on the obvious.... Very Happy

And both are nice looking little engines as well!

Thanks,  I will let the experts here respond.

But with Cox it must be all about the cylinders, -  induction, sub-induction, single intake with/without flute, double intake with or without flute etc. etc.

 I think all tanks vented/not vented outside of capacity and color were the same. But there were some minor differences regarding the use of starter springs. Cases varied in design and application from the earliest to the latest.  

Then there were the "horseshoes" and "Postage Stamps" etc. etc. etc.

It took a book.  Smile

The Cox handbook is an excellent referance.

"I am assuming the differences between from the Black Widow is teh cylinder? And difference from the Golden Bee the color?"

My best guess too. What attracted me to this engine was the 8cc tank. I hadn't seen a "Quiet" like it before.
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Post  NEW222 Sun Mar 25, 2018 2:45 pm

Thank you. For such a small, uncomplicated engine, they are sure complicated to identify them all though! Shocked I think this is one part that keeps me interested. As well, on used engines, I am sure many have swapped parts here and there along the way. I had always honestly thought all of the Cox engines with the cross flow fuel vents in an 8cc tank configuration were all Black Widows......
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Post  rsv1cox Sun Mar 25, 2018 3:01 pm

NEW222 wrote:Thank you. For such a small, uncomplicated engine, they are sure complicated to identify them all though! Shocked  I think this is one part that keeps me interested. As well, on used engines, I am sure many have swapped parts here and there along the way. I had always honestly thought all of the Cox engines with the cross flow fuel vents in an 8cc tank configuration were all Black Widows......

Didn't Golden Bees have them too?

One that got away, two that didn't Cox_gb18

Ohhhh Can't forget the RR1, Purple Python, Copperhead, etc. etc. Frightening. Smile
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Post  NEW222 Sun Mar 25, 2018 3:37 pm

Sorry, my bad. I should have been a bit more clear on my behalf about the 8cc stunt tanks as is on the Golden Bee and Black Widow. Yes, the Golden Bees had them, but were at least distinguished by being colored. Either black or golden, as per the info I found online.
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Post  66 Malibu Sun Mar 25, 2018 5:44 pm

Actually the Golden Bee with the rear carb had the Tarno carb and the Tarno 1/2AR kit that included the carb/reed adapter, screws, and the metal bracket.
That kit is actually pretty rare and sold separately from the Tarno carb.
All in all $50 plus freight was pretty good and just happened to have run of the mill Golden Bee attached to it.
I started to bid but I already have my share of Tarno .049 carbs , Tarno .09 carbs, and Tarno 1/2AR kits.
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Post  roddie Sun Mar 25, 2018 8:35 pm

Hey Bob.. I'll point this out again.. (not Gospel.. just my findings).... Somewhere along the production line.. Cox decided to make their 8cc integral-tanked/stunt-vented engine (the "Golden Bee") more powerful. I have two Cox Golden Bee engines that have been in my family since new. One of the engines has a larger venturi. The original Golden Bee was simply a "Babe Bee" engine with a larger-capacity fuel-tank.. with venting to permit inverted-flight without the loss of fuel. It had the same size air-intake (.063") as the Babe Bee engine. One of my Golden Bee's has a "larger" air-intake size of .082" evidenced by both; the backplate and the tank's venturi-tube. There's no evidence of any customization. The gold anodizing can be seen inside the larger tank-tube.

One that got away, two that didn't Golden12
One that got away, two that didn't Golden13

My guess is that the engine with the larger air-intake was the predecessor to the Black Widow engine. I don't know if Cox continued to produce the Golden Bee engine.. after the Black Widow was introduced.

Unfortunately.. the cylinder-identification (intake-porting) between my two engines was lost years ago.. which may have been a clue to whether Cox had produced a "high-output" Golden Bee.. just prior to releasing their Black Widow engine. I like to think that I might have a "rare" assembly.. but who knows...??? That tank is my only claim to what "might be" a rare Cox item.




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Post  NEW222 Sun Mar 25, 2018 9:12 pm

Thanks for posting that again roddie. I actually remembered seeing that description after you posted it again.
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Post  rsv1cox Mon Mar 26, 2018 6:50 am

Yes, I remember that post too roddie, but anymore my brain is like when your washing machine flips to the spin cycle, all that knowledge just goes down the drain. Sad

Makes me regret selling all my early unmolested used and NIB Golden Bee's. But I still have five, two of which are on my P-38. Will have to take a look and see if I can duplicate your findings.

Bob
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Post  roddie Mon Mar 26, 2018 7:24 am

You may remember I scored two GB's last December from a hobby shop in Sturbridge, MA. but they both have the std. (.063") air-intake.
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