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Post  Davidb01 Wed Jul 17, 2013 8:03 pm

Hello all ... new to this site and The Cox Golden Bee.
I did get it running but it runs sparatically> Removed it from the plane, disassembeled and soaking in 15% fuel. I also read tyhat the pick up tube needs to be relocated to the bottom of the tank.
I ordered the wrench, new glow heads, new propeller and the proper glow clip (dads was wrong or messed up) As far as I know this engine was only run one time prior to me firing reciently ... YEARS AGO!
Any suggestions would be appreciated!
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Post  Jason_WI Wed Jul 17, 2013 8:15 pm

Did you also order a new rebuild kit for the Golden Bee? It includes a new reed, venturi gasket, crankcase gasket and pickup tube. Also take the backplate off and the needle valve out. Sometimes dried castor oil can plug the fuel inlet nipple on the backplate. Some compressed air or a bread twist tie wire can clean it out. Make sure you can blow air through the pickup tube with the needle valve turned out 5 turns.

Also do a suck test on the reed valve. Some 1/8" silicone fuel line will work for this. Cut a 2" piece and place it on the tank venturi intake. With the reed installed suck on the tube. The air should be blocked and should not make any noise. Noise means it is leaking. Also blow into the tube to make sure the reed isnt blocking airflow by being too tight. The reed should turn freely in the tank reed housing with the circlip installed. If it binds trim a bit off the outside edge just enough to remove flashing that my be there from the mfg process of making the mylar reed.

What fuel are you using?

Register on the forum and welcome to the forum.

Hope this helps.
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Post  Cribbs74 Wed Jul 17, 2013 8:35 pm

Can't really add anything to Jason's comment, with the time it's been sitting it just really needs to be dissassembled and gone through. Join the forum! help is at hand.

Ron
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Post  Davidb0123 Sun Jul 21, 2013 2:19 pm

No I did not order a rebiuild kit. But appatently I should. I doubt seriously dad broke it in properly... do you think it has been damaged? Like I said up until last week ... it was only run one time.
Are these difficult to rebuild? I am not at all famillure with these engines. I read an article on the forum that described cleaning the cox engines so I dissassembled and soaking while waiting for parts.
The local Model shop sold me Traxxas 20% Nitro for the golden bee.
I have other fuel 15% Cool Power for another engine OS that is on a trainer model > not having much luck there either except rebuilding when it lands a bit rough Surprised) SAgain ... like I said New to all of this!

Thanx 4 the replys!!!
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Post  Davidb0123 Sun Jul 21, 2013 2:22 pm

Jason / Ron >>>I did join the forum last week but am showing up as a guest????


Last edited by Davidb0123 on Sun Jul 21, 2013 2:33 pm; edited 1 time in total
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Post  ian1954 Sun Jul 21, 2013 2:30 pm

I don't think that the Traxxas fuel has any castor oil in it and the lubricant is fully synthetic. This wouldn't be a wise choice for a Cox engine.

Search this site and you will find that it will be wise to add some castor oil to the Traxxas. The Bee will not survive long without it.
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Post  Davidb0123 Sun Jul 21, 2013 2:35 pm

Ian ... thanx 4 the reply. i can dump the traxxas if need be?
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Post  Davidb0123 Sun Jul 21, 2013 7:04 pm

ian1954 wrote:I don't think that the Traxxas fuel has any castor oil in it and the lubricant is fully synthetic. This wouldn't be a wise choice for a Cox engine.

Search this site and you will find that it will be wise to add some castor oil to the Traxxas. The Bee will not survive long without it.


Unable to find the article yet but will keep looking and reading. in the mean time > Is this a special kind of Castor Oil? How much castor oil should I add to a quart.
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Post  pkrankow Sun Jul 21, 2013 8:01 pm

You can use pharmacy or drug store castor oil in a pinch. It is less than ideal because it will gum the engine up over time, leading to more cleaning.

Yes, I am currently using drug store castor oil. However I am not finding the percentages of oil in traxxas fuel, so unknown starting point. With Omega from Morgan Fuel I added 8 oz castor oil to a gallon, which fill the entire head space of most gallon jugs.

Adding 2-4 oz of castor to a quart would be reasonable assuming that traxxas has about 17% total oil to start with.

Phil
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Post  batjac Sun Jul 21, 2013 8:28 pm

Phil, when adding Castor to the fuel, do you just pour it in and shake, or do some kinda mixing and stirring.


The Shakin' Mark (https://www.youtube.com/watch?v=4q9Y_jb1pcU)
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Post  pkrankow Sun Jul 21, 2013 8:53 pm

batjac wrote:Phil, when adding Castor to the fuel, do you just pour it in and shake, or do some kinda mixing and stirring.


The Shakin' Mark (https://www.youtube.com/watch?v=4q9Y_jb1pcU)

Dump it in. Shake it up. Let it sit at least overnight and shake again. It doesn't mix in very quickly. It won't separate once it mixes in.

Good song choice.

Phil
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Post  gcb Wed Jul 31, 2013 10:05 pm

Davidb01 wrote:Hello all ... new to this site and The Cox Golden Bee.
I did get it running but it runs sparatically> Removed it from the plane, disassembeled and soaking in 15% fuel. I also read tyhat the pick up tube needs to be relocated to the bottom of the tank.
If you haven't already disassembled it, try a few runs before rebuilding it. It may just be plugged a bit with congealed oil.
The pickup tube should be on the bottom if you are putting it in a RC plane. For control line it should be up on the side toward the outside of the circle.

George
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Post  WingingIt74 Wed Jul 31, 2013 10:39 pm

Old engines need quite a few tanks of fuel before they settle down into their groove. Just keep running it.
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Post  RknRusty Wed Jul 31, 2013 10:57 pm

It would probably be least expensive and a good idea to buy some of the right fuel. If you go to http://www.sigmfg.com and use the links on the left and navigate to Sig Champion fuel, and get a quart of the SIGCF016, SIG CHAMPION FUEL 25% RC QT.

To navigate to it, click on Field Equipment>Fuel>Airplane, and then click on the picture of Sig Champion at the top left. It's a 50/50 castor/synthetic mix.

And as to your question if it was probably damaged; no probably not. With the right fuel, they're tough as nails.
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