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In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! Empty In the Words of Aretha Franklin: "Oh! Happy Day!" 1952 Cox "Space Bug" !

Post  Kim on Mon Nov 14, 2011 5:12 pm

Just got my newest weird little engine...a Cox Space Bug! Now, off to Warren's site to figure out what I bought !!!!!!!!!!!

In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! 2_22


Last edited by Kim on Tue Nov 15, 2011 9:17 am; edited 1 time in total
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Post  Admin on Mon Nov 14, 2011 6:02 pm

Smaller dia. threads, the head just looks like it is smaller. You can see for sure by removing the head and then try to fit a new head on the cylinder. Don't force anything! If it doesn't go on, then the cylinder has smaller threads. If it has smaller threads, that would mean it is from 1955 or earlier,
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Post  Mudhen on Mon Nov 14, 2011 6:19 pm

Admin wrote: If it has smaller threads, that would mean it is from 1955 or earlier.
Also, it does not have the sealing rim around the crankcase. If - If it has the screened acorn nut on the tank back and a domed piston, then it probably has an Oilite bronze bushing running through the crankcase bore. It should also be twin ported and contain two beryllium copper reeds. (Later versions had one steel and one copper reed.) Other than that, there weren't too many differences between the initial issue version and the last.
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Post  Mark Boesen on Mon Nov 14, 2011 10:47 pm

Hi Mud,

Good to see you posting! So when was the 'acorn nut' style venturi screen discontinued?

Also, I can't remember asking...Did the Strato Bug ever have the aluminum 'acorn nut' or was that just on the art work only...I've never seen one, but that don't mean its so.

Thanks,

Mark
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Post  Kim on Tue Nov 15, 2011 3:43 am

Thank You Guys!

This IS interesting information! It does have a screened intake, and domed piston...and the glowhead IS the smaller version. I'm gonna look for an extra glowhead, so if anyone has an example they'll part with, please let me know.

Also, do drawings exist of it's internals?
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Post  nitroairplane on Tue Nov 15, 2011 7:40 am

WHo gave Jacob a "-" ?
Well that is a nice engine Kim.
Do you think you will be running it?
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Post  Kim on Tue Nov 15, 2011 8:36 am

nitroairplane wrote:WHo gave Jacob a "-" ?
Well that is a nice engine Kim.
Do you think you will be running it?

Thanks Nitro!

Not me...at least not intentionally...thought I gave him a + !!!! Who can track and reset it !

Yeah, want to get it going...would like to track down a spare glowplug! While my Building Schedule is backed up past my funeral...I DO think it'd be cool to put this thing on an appropriate R/C assist vintage free-flighter. Maybe do a retro RTF!
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Post  Kim on Tue Nov 15, 2011 8:38 am

Well, I got it half-way fixed...
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Post  SuperDave on Tue Nov 15, 2011 8:42 am

A very minor point but wasn't "Oh Happy Day" derived from Gospel music rather than "The Fifth Dimension"?

(I'm a big time fan of music of all types EXCEPT "rap" crap)
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Post  Kim on Tue Nov 15, 2011 9:18 am

OK...My Mistake...Now Better...
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Post  nitroairplane on Tue Nov 15, 2011 9:39 am

SuperDave wrote:A very minor point but wasn't "Oh Happy Day" derived from Gospel music rather than "The Fifth Dimension"?

(I'm a big time fan of music of all types EXCEPT "rap" crap)

I like some rap.
But those who dont sometimes call it "r'tards attempting poetry"
However i dot like the word retard unless used in its proper for :to slow down or stop"!
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Post  SuperDave on Tue Nov 15, 2011 9:47 am

Kim:

The reason that I made the small point was that I recently heard the song performed at a Black Gospel concert in Nashville. Further it doesn't fit the profile of "Fifth Dimension" music. "Oh Happy Day" is lively spritual and well befitting a Gospel show performance.

OK, so I am a picayune but an observant picayne. Laughing Laughing Laughing

I also note that you changed from "The Fifth Dimension to Aretha Franklin. The song is MUCH older than Aretha dating back to the post-Civil War era and the Freedmen (former slaves).

But, AS I indicated, music is my "thing" especially music of historical significance.
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Post  Mudhen on Tue Nov 15, 2011 10:22 am

Mark Boesen wrote: So when was the 'acorn nut' style venturi screen discontinued?

Good question. I don't know, but they seem to disappear pretty quick...maybe '54/'55.
As for the Space Bug Jr.

In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! Scratc10

This is the original scratchboard for the engine. I think it's the prototype engine that made it into the advertisements but was modified before entering production. The nylon tanks were a headache for Cox. While the Space Bug did not leak, the Space Bug Jr. did. That's why the sealing rim was added to the crankcase.

Kim - I've restored about a dozen or so Space Bugs. One of them went on a clunker airplane and that engine just "got up and went." It's a great performer. Instead of trying to find replacement plugs, maybe you could machine a "runner" head similar to the prototype engine, which used a separate glowplug. You could have one head for display and the other to use while running. You'll definately need to clean the reeds; one thick reed (for spring return) and one thin reed, (for sealing.) The only "internal" drawings I have for the engine is a copy of the crankcase blueprint. If you have any questions, I'll be glad to help. Just a note on running: You'll definately want to run "rich of peak." The engine does not have an oil groove running through the crankcase bore.
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Post  gcb on Tue Nov 15, 2011 11:02 am

Kim wrote:Thank You Guys!

This IS interesting information! It does have a screened intake, and domed piston...and the glowhead IS the smaller version. I'm gonna look for an extra glowhead, so if anyone has an example they'll part with, please let me know.

Also, do drawings exist of it's internals?

How about a pic of the internals? ...sorry. I tried to add a pic several times and failed. Oh well


Last edited by gcb on Tue Nov 15, 2011 11:18 am; edited 2 times in total (Reason for editing : To add pic)
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Post  Kim on Tue Nov 15, 2011 7:39 pm

Thank You Mud,

GREATLY appreciated. I'll take a shot at cleaning the reeds, and include photos of the attempt!!

Hey Nitro ! Thank you for the plan offer, but I'm gonna have to either put it in one I have or maybe an ARF...I've got a bunch of projects started and GOT to finish something eventually !
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Post  Cribbs74 on Tue Nov 15, 2011 8:06 pm

It would be great if you could post a video of it running, never actually seen one or heard one.
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Post  Kim on Tue Nov 15, 2011 8:15 pm

cribbs74 wrote:It would be great if you could post a video of it running, never actually seen one or heard one.

Will give it a shot...should have time tomorrow...we'll see how I and my video program get along !
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Post  Admin on Tue Nov 15, 2011 11:36 pm

Yeah, it would be great to get a video of it to put on YouTube. I think you'll be the first to upload a Space Bug running to YouTube!



In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! 5th_di10
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Post  Mudhen on Wed Nov 16, 2011 12:54 am

Kim wrote:I'll take a shot at cleaning the reeds, and include photos of the attempt!!
Come to think of it. If you're going to run the engine, then you won't need both reeds. In the engine I ran I had only the thick reed installed.
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Post  Kim on Wed Nov 16, 2011 3:15 am

"Come to think of it. If you're going to run the engine, then you won't need both reeds. In the engine I ran I had only the thick reed installed."
Mud

OK...at this point I don't know what the innards of this thing look like...guess I'll find out this afternoon. Got myself some phone wire so I can take my laptop (and you guys) out to my shop as a security blanket !
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Post  Kim on Wed Nov 16, 2011 3:31 am

Admin wrote:Yeah, it would be great to get a video of it to put on YouTube. I think you'll be the first to upload a Space Bug running to YouTube!

Well then...the Pressure is ON ! I'll try shooting it with one of my little "Flip" cameras !


Man! 8-tracks!!!! What great times THOSE were! Funny..the 5th Dimension's music always makes me think of hauling hay with my cousin Bobby! We had a severely beat-up Sears radio that was the height of our teenage entertainment technology (and budget) at the time. With a kinked antenna and missing buttons, it was always packed along, and turned up so loud against the tractor's racket that you could barely recognize the songs.

Guess now, I'm gonna have to get myself a 5th Dimension CD.................."Can You Surrey" ?
In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! 5th_di10
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Post  Mudhen on Wed Nov 16, 2011 11:34 am

Hi Kim - A shot of the "internals" sans gaskets. It's difficult to see the Oilite bronze bushing in the picture, but it's there. Your engine may, or may not have it. You can purchase replacement gaskets from Xenalook. If you need a spare glowhead for a runner, I can send you one. Let me know if you need any help.
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In the Words of Aretha Franklin:  "Oh! Happy Day!"  1952 Cox "Space Bug" ! Intern10

Just a quick note: When you're ready to assmeble the engine, it can be difficult to have the reed stay in place, (in its "key,") while preesing the reed retainer onto the tank. So put a dab of Vaseline on the reed, then place it in the retainer. This will hold the reed while you press the retainer on the tank.


Last edited by Mudhen on Wed Nov 16, 2011 11:48 am; edited 1 time in total (Reason for editing : funzies)
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Post  Admin on Wed Nov 16, 2011 12:20 pm

Do you want a mp3 of that 8 track? I just need to replace the pressure pad and the foil splice. I just have to hook the deck up to my usb turntable and start the recording.
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Post  andrew on Wed Nov 16, 2011 12:43 pm

Fantastic --- I've never seen the internals of a Space Bug and didn't know about the double reed until I read the posts here. Thanks for the pic.

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