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Running a Space Bug Jr.
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Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 4:30 pm
I went through this thing twice today. How many reeds does it require? I have one copper and one thin steel.
Last edited by cribbs74 on Sat Feb 09, 2013 5:42 pm; edited 2 times in total
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Re: Running a Space Bug Jr.
Mudhen Sat Feb 09, 2013 5:11 pm
.
Last edited by Mudhen on Sun Nov 14, 2021 12:17 pm; edited 1 time in total
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Re: Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 5:44 pm
Thanks Mud,
It actually had 2 thin and one thick when I took it apart. I'll try it with one. You may notice in the video it never broke out of 4 cycle.
Ron
It actually had 2 thin and one thick when I took it apart. I'll try it with one. You may notice in the video it never broke out of 4 cycle.
Ron
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Re: Running a Space Bug Jr.
Mark Boesen Sat Feb 09, 2013 6:04 pm
hey Ron, while your at it, try running a really large prop on it, due to the different sbj porting designed to help starting, it will run with larger props, an early test review claimed it would run with a 10x6!
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Re: Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 8:05 pm
Thanks for fixing the vid Rusty.
Mark, I'll throw a 10x6 on and see what happens!
Mark, I'll throw a 10x6 on and see what happens!
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Re: Running a Space Bug Jr.
RknRusty Sat Feb 09, 2013 8:13 pm
That'll be an odd site, a 10x6 on that little engine. I bought my first 10" prop the other day and after 45 years of playing with 5" props it's downright huge.
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Re: Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 8:17 pm
RknRusty wrote:That'll be an odd site, a 10x6 on that little engine. I bought my first 10" prop the other day and after 45 years of playing with 5" props it's downright huge.
I know what you mean!
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Re: Running a Space Bug Jr.
Jason_WI Sat Feb 09, 2013 9:58 pm
Does this have the 3 piece piston in it? How tight is the fit of the ball socket and the plate that holds it all together? I have one 3 piece piston assembly that has more than 1/16" of slop and I am sure the performance is going to be poor in the babe bee it is in.
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Re: Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 10:11 pm
Jason_WI wrote:Does this have the 3 piece piston in it? How tight is the fit of the ball socket and the plate that holds it all together? I have one 3 piece piston assembly that has more than 1/16" of slop and I am sure the performance is going to be poor in the babe bee it is in.
It was in there, but it was sloppy so I put a regular one in. I think the reeds are just squished in there and not moving freely. The reed arrangement is not the best thing ever designed in my opinion. No wonder the tank and reed assembly came as one unit for a replacement part.
Ron
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Re: Running a Space Bug Jr.
Jason_WI Sat Feb 09, 2013 10:37 pm
Must be a reed issue then. Did you do a suction test to make sure it seals properly?
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Re: Running a Space Bug Jr.
Cribbs74 Sat Feb 09, 2013 10:42 pm
Jason_WI wrote:Must be a reed issue then. Did you do a suction test to make sure it seals properly?
Yes, it seemed to seal, but it was hard to blow as well.
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Re: Running a Space Bug Jr.
Mark Boesen Sat Feb 09, 2013 11:05 pm
opps, i forgot to add, you might want to add 2-3 head gaskets and maybe try something like a 9x4 or 10x4 first. I think it would be cool to see.
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Re: Running a Space Bug Jr.
Mark Boesen Sun Feb 10, 2013 1:31 pm
Remember when Estes was blowing out Sure Starts for $2.50 a piece...where's that time machine when you need it?
note: the above photo is from a free android app, scanner...something, pretty neat!
note: the above photo is from a free android app, scanner...something, pretty neat!
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Re: Running a Space Bug Jr.
ebeneezer Mon Feb 11, 2013 1:09 pm
Oh! guys you've done it again. Here I am content that I've just scored a new crank for my TeeDee 010, and what happens I now fall in love with a Space Bug Junior. Am I right that the later ones use a standard cox glohead, and are a quite practicle vintage engine for a novice restorer. Bearing mind I want to put it in a vintage model. Dakota? If not a Dakota any suggestions? Whats a ballpark figure cost wise?
Cheers
Cheers
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Re: Running a Space Bug Jr.
Cribbs74 Mon Feb 11, 2013 3:58 pm
ebeneezer wrote:Oh! guys you've done it again. Here I am content that I've just scored a new crank for my TeeDee 010, and what happens I now fall in love with a Space Bug Junior. Am I right that the later ones use a standard cox glohead, and are a quite practicle vintage engine for a novice restorer. Bearing mind I want to put it in a vintage model. Dakota? If not a Dakota any suggestions? Whats a ballpark figure cost wise?
Cheers
Eb,
Yes, the later ones use a normal head. The hardest thing to aquire is the reed. The good thing is the cylinder is interchangeable so you can run it just about forever.
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Re: Running a Space Bug Jr.
ebeneezer Tue Feb 12, 2013 2:48 am
Fantastic now on my wish list.. Look out Ebay
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Re: Running a Space Bug Jr.
gcb Tue Feb 12, 2013 11:33 am
Be careful using large or strong props on this engine because the shaft is easy to bend or break. Cox did not use an easily replaceable prop screw until they came out with the Babe Bee.
BTW, a Space Bug Junior was my first new engine back in 1953. :-)
George
BTW, a Space Bug Junior was my first new engine back in 1953. :-)
George
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