Cox Engines Forum
You are not logged in! Please login or register! Guests are limited to posting in the "General Questions (Guest Posting Allowed)" section only. Becoming a member is fast, easy and FREE!


Problems with a "used" Golden Bee -- purchased from RC Groups Babe_b10
Log in

I forgot my password

Search
 
 

Display results as :
 


Rechercher Advanced Search

Cox Engine of The Month
November-2020
sosam117's

"Three Cox Tee Dee 020 engines with a new lease on life."



PAST WINNERS
CEF Traveling Engine

Win This Engine!
Forum Store
CEF Ear Savers
Gallery


Problems with a "used" Golden Bee -- purchased from RC Groups Empty

Problems with a "used" Golden Bee -- purchased from RC Groups

Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Problems with a "used" Golden Bee -- purchased from RC Groups

Post  sosam117 on Mon Nov 16, 2020 9:13 am

Purchased a good looking Golden Bee (original with #2 cylinder head) and metal backplate.
It looked like it was used very little. No screw/ screwdriver marks on the tank.
Still have a very "Yellow" anodized look to it.
It turned over, nothing was stuck, had a high compression glow head.
Looked at the screws in he back plate. Yes, the screw heads were buggered up, but for the age --ok?

Now, to take it apart to clean it up and rebuild it, cause it looked like it hasn't been apart for a while?
(this is where I should have started to photos of this teardown).

I tried to remove the screws. The wouldn't budge? O.K., I'll use some heat. I could smell the caster oil.
Ok, now try to remove the screws. The heads broke off. Damn! affraid

Whom ever had this engine, used epoxy to help seal the holes around the screws.
The heads of these screws were not Cox engine type screws. Probably why epoxy was used?
(this is where the photos of this problem would have been useful)

Well the good part was with the heads of the screws broken off, I can just remove the tank. Very Happy
The tank wasn't coming off, nor was it able to rotate? Huh... confused
Alright, maybe some more caster oil "goo" holding the tank onto the back plate? confused
I used heat again on the engine on the fuel tank. Started smelling that caster oil smell.
Using a pair of pliers on the backplate and a strap on the tank I was able to get them apart. cheers
What I found amazed me. The previous owner used epoxy instead of the rubber gasket to seal the venturi tube to the backplate.
(this time I took the time to get the camera and take photos)
Problems with a "used" Golden Bee -- purchased from RC Groups Golden12
Problems with a "used" Golden Bee -- purchased from RC Groups Golden11
Problems with a "used" Golden Bee -- purchased from RC Groups Golden10

After about a 1/2 hour of work to carefully remove the epoxy from the venturi area. (not to create any burrs) I was able to remove all of the epoxy.
Problems with a "used" Golden Bee -- purchased from RC Groups Golden13
Problems with a "used" Golden Bee -- purchased from RC Groups Golden14

One thing I still had to address were the broken screws that were still sticking out of the crankcase.
Again using heat I was able to remove three of the four screws.
The 4th screw sheared off even with the crankcase.  Damn!  Doh!

What I did was to carefully (using my Dremel)cut the screw even with the back of the crankcase.
Using my MiniMax drill/lathe, drilled out the broken shaft of the screw so I can re-tap it.
Then, re-tapping the hole I was able to save the crankcase housing.

Here are the finished photos of the rebuilt Cox 049 Golden Bee.  Thumbs Up  sunny  Clapping
Problems with a "used" Golden Bee -- purchased from RC Groups Golden16
Problems with a "used" Golden Bee -- purchased from RC Groups Golden15
Problems with a "used" Golden Bee -- purchased from RC Groups Golden17
sosam117
sosam117
Gold Member
Gold Member

Posts : 214
Join date : 2016-03-23
Location : Chicago, Illinois

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  Cribbs74 on Mon Nov 16, 2020 10:19 am

That’s a nice early 70’s GB, you did excellent work. That was quite a bodge done by some PO.
Cribbs74
Cribbs74
Moderator

2019 Supporter

Trusted Seller
Posts : 11000
Join date : 2011-10-24
Age : 46
Location : Tuttle, OK

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  pkrankow on Mon Nov 16, 2020 10:53 am

Gives a new meaning to the concept of threadlocker.

Looks good.

Phil
pkrankow
pkrankow
Top Poster
Top Poster

Posts : 3022
Join date : 2012-10-02
Location : Ohio

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  sosam117 on Mon Nov 16, 2020 12:26 pm

Cribbs74 wrote:That’s a nice early 70’s GB, you did excellent work. That was quite a bodge done by some PO.

Originally I payed $45.00 for it (plus shipping -- total= $53.00)
sosam117
sosam117
Gold Member
Gold Member

Posts : 214
Join date : 2016-03-23
Location : Chicago, Illinois

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  944_Jim on Mon Nov 16, 2020 4:14 pm

Fabulous recovery! I would love to see a picture of your milling machine just to see how you managed to fit a puny engine in it. Can you re-bush cases with it too?
944_Jim
944_Jim
Platinum Member
Platinum Member

2019 Supporter

Posts : 953
Join date : 2017-02-08
Age : 55
Location : NE MS

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  Admin on Mon Nov 16, 2020 4:36 pm

Great save on a pretty nice looking Golden Bee. Beer Cheers

_________________
-Jacob


Admin
Admin
Administrator

Posts : 5404
Join date : 2010-07-27
Location : Roseville, Minnesota

http://sites.google.com/site/coxenginecollection/

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  NEW222 on Mon Nov 16, 2020 6:18 pm

Great job on giving this engine a new chance at life!
NEW222
NEW222
Diamond Member
Diamond Member

Posts : 2938
Join date : 2011-08-13
Age : 42
Location : oakbank, mb

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  sosam117 on Mon Nov 16, 2020 10:39 pm

944_Jim wrote:Fabulous recovery! I would love to see a picture of your milling machine just to see how you managed to fit a puny engine in it. Can you re-bush cases with it too?

It's a combination of a milling machine and a lathe.
The height is 14 inches (bed to mill head) and the length is 30 inches.
My dad had it before me. I inherit the MiniMax from him when he passed away in 2001.
In the photo you have the on/off switch. Top white button on, middle turns the spindle on, Red button emergency stop.
Below that is a toggle lever to increase or decrease the motor speed on both motors.
The long lever to the right is the "high/low" gear selector.
To turn on the milling head, there is a switch on the back of the motor. (square looking box on the back of the motor)

It is a good "hobby" lathe/mill for doing small stuff and some minor home repairs.
My dad and I have done interesting stuff on it and trying to get stuff done on it that probably shouldn't have?
We have had it for close to 40 years.

Down side is the dials don't "zero" out. It's in inch ( I like working in metric more --- 25.4mm= 1 inch)
The mill stop is just a threaded nut that you just screw down to where you think it should stop
and lock it with the other nut that is behind that nut. The tail stock is a guess as well. No measurements on the spindle.
One turn on the tail stock is approximately 1/4"
No way to do any threading on this. Everything is done by hand (hand feeding - turn the wheel)

Here is a photo of it.
Problems with a "used" Golden Bee -- purchased from RC Groups Minima10
sosam117
sosam117
Gold Member
Gold Member

Posts : 214
Join date : 2016-03-23
Location : Chicago, Illinois

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  sosam117 on Mon Nov 16, 2020 11:39 pm

Admin wrote:Great save on a pretty nice looking Golden Bee.   Beer Cheers

This Golden Bee will help out my original Golden Bee that I got for a Christmas present (back in 1972 -- I was 13 yrs. old)
along with a Carl Goldberg Lil' Jumpin Bean kit. (from my dad --rip)  Sad

Here's photos of my cleaned up 1972 Golden Bee.
It has been mounted into many planes over its life time.
Last plane it was in was an Airtronics S-Tee with an EK Logictrol radio.(a month ago -- stuck and dirty)
Notice the screw markings on the tank and scratches --- no yellow anodizing.

Problems with a "used" Golden Bee -- purchased from RC Groups 049_go10
Problems with a "used" Golden Bee -- purchased from RC Groups 049_go11
Problems with a "used" Golden Bee -- purchased from RC Groups 049_go12
Problems with a "used" Golden Bee -- purchased from RC Groups 049_go13
sosam117
sosam117
Gold Member
Gold Member

Posts : 214
Join date : 2016-03-23
Location : Chicago, Illinois

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  dckrsn on Tue Nov 17, 2020 4:58 pm

Good looking Golden Bees, the both of them. I especially
like the thin wall #2 on the second bee.
Thanks for sharing.
Bob
dckrsn
dckrsn
Diamond Member
Diamond Member

2019 Supporter

2020 Supporter

Posts : 2328
Join date : 2010-10-21
Age : 67
Location : Long Island, New York

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  roddie on Tue Nov 17, 2020 7:01 pm

Glad you were able to work things out with that engine. The Golden Bee's have always been a favorite of mine. I like your MiniMax machine. Nice to have that.. even with the shortcomings you pointed out. The Unimat and Smithy are machines that I believe are similar to yours.

Nice job on the engine. Do you plan to run it with that H/C glowhead?
roddie
roddie
Top Poster
Top Poster

Posts : 6989
Join date : 2013-07-17
Age : 60
Location : N. Smithfield, Rhode Island

http://www.stilburnin.com

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  sosam117 on Tue Nov 17, 2020 8:31 pm

roddie wrote:Glad you were able to work things out with that engine. The Golden Bee's have always been a favorite of mine. I like your MiniMax machine. Nice to have that.. even with the shortcomings you pointed out. The Unimat and Smithy are machines that I believe are similar to yours.

Nice job on the engine. Do you plan to run it with that H/C glowhead?

The high compression head is what came with it when I purchased it.
I have always use a standard glow head (with no problems).

With the MinMax machine I have learned to work with and work around its short comings.
It gets the small jobs I want to do, get them done.
I have friends that come over and have "little projects" that they would like me to do on my MiniMax.
I've done replacement contra-pistons for diesel engines.
Bore out old engines crank cases to re-sleeve them with a new oil-lite bearing (and ream them to size to accept the old crankshaft.).
Made special venturi for engines (out of production). The latest, I made a fuel tank for an old McCoy 049 diesel from aluminum because the original was missing.
And many other projects.
They're luck I don't charge them like a small machine shop would? They supply the material, throw me some money or item that I like my way and I'll do the job (if I like it?)
sosam117
sosam117
Gold Member
Gold Member

Posts : 214
Join date : 2016-03-23
Location : Chicago, Illinois

Back to top Go down

Problems with a "used" Golden Bee -- purchased from RC Groups Empty Re: Problems with a "used" Golden Bee -- purchased from RC Groups

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum