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Post  roddie Fri May 17, 2024 8:42 pm

I bench-ran a .049 reed-valve engine last weekend as part of a water-cooling test. I had set it up with a choke-tube and an experimental velocity-stack.. which created too many variables for my test. It didn't go well.. lots of gremlins came out of the woods... and stuck their fingers in my work..  Laughing (that's my story.. and I'm stickin' to it..)

This afternoon.. I got the urge to reconfigure a different engine.. in a similar way.. but not water-cooled. The engine came in a "box-O-engines" that I sourced a few years ago. A Babe Bee with a single fill-tube on the backplate.


A choke-tube with velocity-stack configured Bee Dsc04310

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missing needle.... and a cam-style starter-spring.. without a hex drive-plate.  Huh...  

Very clean inside..

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I donated a needle from my Bee needle stock... stuffed the 5cc bowl and mazac/zamac backplate in a little baggie.....  Smile  and proceeded to put together an alternate "back-end" for the little mill.

I gave the back of the crankcase's gasket surface a little "massage".. over glass and 600 grit paper...

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I had done a "needle-seal" using silicone tubing on the water-cooled engine's carb. and I wanted to do the same to this engine. I paid a bit more attention to the fitting of the tubing... to the needle.

I found a small flat-washer that fit perfectly around the needle-shaft and up against the spring-collar.

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then I cut a length of tubing* to make a seal.

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There's ample clearance for both; the tubing-seal.. and the flat-washer retainer.

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With the back-end/carb. configured; I decided on a cylinder-orientation. The choke-tube (height) interferes with a parallel cylinder if using the Cox (Sandblaster) heatsink.. and the Cox heat-sink is replacing the water-cooling for this engine's testing. Therefore; I reoriented the cylinder position from 12:00 to 3:00; which will work for an application that is waiting.

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Orienting the cylinder/crankcase 90 degrees from the NVA when using the horseshoe backplate/carb. leaves one of the four engine-mounts inaccessible from the front-side. This can be defeated by the use of #5 cap-screws and a ball-end driver.

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I made some modifications to the bench-mount. When the engine "ran" for the water-cooling test; the tank was gyrating..



I'm actually "happy" that my little custom clunk-tank fed the engine.. until I pinched the line. I decided to make a mount to keep it still..

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Oh.. almost forgot; the velocity stack is made from a brass compression-fitting with a heat-shrink sleeve to lock it in place.

A choke-tube with velocity-stack configured Bee Veloci12

If the weather permits tomorrow; I'll run er' up... and report.  Smile
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Post  MauricioB Fri May 17, 2024 10:21 pm

Friend, I must highlight the quality of your work and presentation, it is to be applauded.
I follow your progress although sometimes I don't write, Roddie...my first friend from the USA!
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Post  roddie Fri May 17, 2024 10:35 pm

MauricioB wrote:Friend, I must highlight the quality of your work and presentation, it is to be applauded.
I follow your progress although sometimes I don't write, Roddie...my first friend from the USA!

I Love You my friend! We share a common bond!!!
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Post  Greenman38633 Sat May 18, 2024 8:02 am

I can definitely learn a lot from watching your posts. Thanks Roddie
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Post  getback Sat May 18, 2024 8:16 am

I hope you get to run it calling for rain again through day/night today Sad Too much! ! anyway looks good , I like the tank and mount you have made . Very Happy
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Post  akjgardner Sat May 18, 2024 10:39 am

I Like that too . How did you leak proof the tank And do you think a pill bottle would work ?
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Post  GallopingGhostler Sat May 18, 2024 2:55 pm

Roddie, love your experimenting, shows a creative mind at work. Today, seems many just like to go with the flow and not find there is more of the world out there to explore, and we can do it with both for fun and humor.
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Post  rsv1cox Sat May 18, 2024 3:28 pm

GallopingGhostler wrote:Roddie, love your experimenting, shows a creative mind at work. Today, seems many just like to go with the flow and not find there is more of the world out there to explore, and we can do it with both for fun and humor.
Clean my glasses Popcorn Thumbs Up bounce sunny Beer Cheers Clapping This Site Rocks!

Yes, I bet roddie saves pen springs too. Mine just went dry. Nothing goes to waste. Multitude of uses.

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Post  GallopingGhostler Sat May 18, 2024 3:31 pm

rsv1cox wrote:I bet roddie saves pen springs too.  Mine just went dry.  Nothing goes to waste.  Multitude of uses.  
A choke-tube with velocity-stack configured Bee P1017658
Yes, I do that too, I think we are not alone in accumulating potential repair material for our engines and the planes/vehicles/boats that are powered by them. I find a certain amount of joy when I find a solution that works perfectly well and restores function.
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Post  MauricioB Sun May 19, 2024 12:37 am

GallopingGhostler wrote:
rsv1cox wrote:I bet roddie saves pen springs too.  Mine just went dry.  Nothing goes to waste.  Multitude of uses.  
A choke-tube with velocity-stack configured Bee P1017658
Yes, I do that too, I think we are not alone in accumulating potential repair material for our engines and the planes/vehicles/boats that are powered by them. I find a certain amount of joy when I find a solution that works perfectly well and restores function.

So now there are 4 of us who use these springs haha..
Don't forget the lighter (encendedor de cigarrillos) stone springs which are perfect for the Cox Babe Bee .049/ Black Widow/ Queen Bee tank hose etc. etc.
Lighter (encendedor de cigarrillos) O-rings are also used for tanks, among other things!
And don't forget the springs and aerosol valves... I'm a "ciruja" haha

humor:
"ciruja" in Argentina: Person who makes a living by going through the garbage.

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Post  roddie Sun May 19, 2024 6:12 am

Greenman38633 wrote:I can definitely learn a lot from watching your posts.   Thanks Roddie

Thanks for your interest Mark. We don't see much use of the choke-tube.. so I thought it would be good to give it some attention.
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Post  roddie Sun May 19, 2024 8:23 am

akjgardner wrote:I Like that too . How did you leak proof the tank And do you think a pill bottle would work ?

Hi Joe, I sourced a package of .5oz. (15cc) clear plastic bottles w/caps from Amazon.. I guess it would depend on your type of pill bottle..

A choke-tube with velocity-stack configured Bee Sm_clu24

I used 3/32" alloy tubing for my fittings. I "melted" holes through the plastic bottle cap using a short piece of the tubing and a "pointed-tip" in my little pencil type soldering iron.

A choke-tube with velocity-stack configured Bee Sm_clu25

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This forms smooth "burr-free" holes. The cardboard seal inside the cap must be removed and punches made to align with the holes in the cap. I actually made my own cap-seal using the "coated" cardboard found in refrigerated food packaging which is more resistant to "soak-through".

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I soldered little steel flat-washers onto my tubes to prevent them pushing-through the cap.. and beveled the ends.

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The "clunk" is a fishing worm-weight. This was actually my first time using the little tank and it worked pretty well considering it was bouncing around quite a bit.
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Post  roddie Sun May 19, 2024 10:48 am

rsv1cox wrote:
GallopingGhostler wrote:Roddie, love your experimenting, shows a creative mind at work. Today, seems many just like to go with the flow and not find there is more of the world out there to explore, and we can do it with both for fun and humor.
Clean my glasses Popcorn Thumbs Up bounce sunny Beer Cheers Clapping This Site Rocks!

Yes, I bet roddie saves pen springs too.  Mine just went dry.  Nothing goes to waste.  Multitude of uses.  

A choke-tube with velocity-stack configured Bee P1017658

Absolutely!!! I get a LOT of enjoyment from tinkering, measuring, fitments/fit-ups.. It really helps to have supplies, stock and tools to work with... not to mention; an open/creative mindset.
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Post  roddie Sun May 19, 2024 2:54 pm

Please see THIS thread.. thanks. Smile
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