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Fueling Cox Engines With A Syringe

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Fueling Cox Engines With A Syringe

Post  NEW222 on Wed Jan 11, 2017 6:00 pm

Hi there. So, this past two years, I have been fueling my engines with a couple different sized syringes. I had a heck of a time to connect my fuel line to these syringes. I have noticed some threading on the tips and was wondering how others use these syringes with fuel line. It was impossible to use 1/2a line, but I had to resort to a larger diameter tubing than required then add a couple adapters (solid tubing) to size down the tubing, and still hope it did not fall off. So, in short, how does everyone else use their syringes? Would using a needle be the way, or is there a needle size that I could slide the 1/2a tubing on? Thank you.
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Re: Fueling Cox Engines With A Syringe

Post  Marleysky on Wed Jan 11, 2017 6:17 pm

Texas timers makes an adapter that fits onto the threaded end of the syringe.  Let me find the link:

Start here:
https://www.coxengineforum.com/t3317-pressure-bladder-how-to-videos-parts-one-and-two#45901
Goto here: http://www.texastimers.com/
Look under "bladder fittings"


Last edited by Marleysky on Wed Jan 11, 2017 6:39 pm; edited 2 times in total
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Re: Fueling Cox Engines With A Syringe

Post  pkrankow on Wed Jan 11, 2017 6:19 pm

Most syringes have a Leur lock on the end of them. There are fittings available because of the medical industry. Cheap turkey basters have a metal needle that can be made to work, otherwise Texas Timers (under pressure bladders) and Ebay.

Phil
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Re: Fueling Cox Engines With A Syringe

Post  Ken Cook on Wed Jan 11, 2017 6:22 pm

http://mbsmodelsupply.com/Ordering/Order.php Melvin is the owner, he has all this stuff and more. Don't be afraid to call he's a great person to talk to and he offers the parts as Phil mentioned.
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Wed Jan 11, 2017 7:13 pm

Ken Cook wrote:http://mbsmodelsupply.com/Ordering/Order.php        Melvin is the owner, he has all this stuff and more. Don't be afraid to call he's a great person to talk to and he offers the parts as Phil mentioned.

Thanks for the link. I had called him about a year or so ago about some bellcranks for 1/2a as they were cheap, but the shipping to Canada through him was huge. He did not want to send in an envelope. All in all, I would have enjoyed dealing with him, as he was very friendly and such, but again, the shipping was what killed the deal for me. But, I will fire off an e-mail again anyways just in case things have changed. Thank you.
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Wed Jan 11, 2017 7:22 pm

Thank you all. I will take my time and try to hunt something out around here as TT is at $5.50 USD to ship one or two here as well. I will try a pharmacy to see if they have something. I also like the turkey thing idea....
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Re: Fueling Cox Engines With A Syringe

Post  TopBannana on Wed Jan 11, 2017 8:20 pm

I kind of Jerry rig mine, what i use is regular size rc fuel and i put that on the syringe. Then i stick the 1/2a line in side the rc fuel line and it has good flow and no leaks yet. lol!
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Re: Fueling Cox Engines With A Syringe

Post  pkrankow on Wed Jan 11, 2017 9:13 pm

Go to the cooking gadget section of the local grocery and see if they have "flavor injectors" "meat injectors" or something similar. I got a couple extra a year or two ago at the end of summer on clearance for extra cheap, but I can always find them when I need one. The rubber squeegee swells after a while when using fuel and the syringe goes bad. I got one with no gasket and it is a little nicer. The marking rub off though.

Phil
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Re: Fueling Cox Engines With A Syringe

Post  roddie on Wed Jan 11, 2017 10:03 pm

I've gotten syringes with a different-style tip in the baby dept. at the pharmacy.



The one on the left has the standard/syringe tip. The one on the right is direct injection.. Laughing

Actually.. if your interested.. I made a micro-fueler syringe using sm. silicone line compress-fit into the end of a syringe.




It would be handy for injecting a precise amount of fuel for a short-run.
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Wed Jan 11, 2017 10:21 pm

Now that is some great engineering there. I like it and will definately give it a try. While at Walmart tomorrow I will search for the injection tips also. Thanks again for the help and suggestions.
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Re: Fueling Cox Engines With A Syringe

Post  Mark Boesen on Wed Jan 11, 2017 11:04 pm

ok, so here's mine, no fuel line to deal with as they often come off, the Monoject 412 fits right into the fuel fill, also less chance of dirt getting into it. I looked around for a clean one, but couldn't find one, also makes a handy li'l grease gun.

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Re: Fueling Cox Engines With A Syringe

Post  roddie on Wed Jan 11, 2017 11:18 pm

Chancy, years ago; Sig Manufacturing Co. (in Iowa) offered their 1/2A starting-kit with a small rubber primer-bulb. I LOVED IT! They switched to the standard syringe sometime in the late 1990's.



This little rubber bulb lasted a LONG time. I've kept it for sentimental reasons.. You can find small rubber-bulbs in the baby department.. listed as "nasal-aspirators". Some can be fitted with tubing for use as a primer-bottle. I like a bulbs ability to apply droplets for priming an engine. A syringe has its place for specialty-fueling.. (bladders/balloons).. but for regular tanks and priming.. I like a bulb.
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Re: Fueling Cox Engines With A Syringe

Post  OVERLORD on Thu Jan 12, 2017 4:41 am

I use a bit of silicon tube with an inner diameter of 1,5 mm and that worked well until now.

In this video I fill up a tank of a  Pee Wee



https://www.youtube.com/watch?v=LIldctdlAb0&t=121s
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Re: Fueling Cox Engines With A Syringe

Post  RknRusty on Thu Jan 12, 2017 10:11 am

NEW222 wrote:Now that is some great engineering there. I like it and will definately give it a try. While at Walmart tomorrow I will search for the injection tips also. Thanks again for the help and suggestions.
They are with the grilling utensils. $.88 cents each.

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Re: Fueling Cox Engines With A Syringe

Post  Mark Boesen on Thu Jan 12, 2017 10:32 am

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Re: Fueling Cox Engines With A Syringe

Post  Kim on Thu Jan 12, 2017 10:40 am

A late check-in...you might also try a farm supply store if one is near by. Several in my area carry livestock syringes in a bunch of different sizes. They've actually out-lasted the two purpose-made fuelers that I bought from a vendor at a fun-fly.
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Re: Fueling Cox Engines With A Syringe

Post  706jim on Thu Jan 12, 2017 1:30 pm

I just used to use a needle to fuel my 0.020's. Filed the end so that it was blunt and the needle fitted right into the fueling spigot on the backplate.
0.4cc would give about a 30 second motor run for my free flight airplanes.
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Re: Fueling Cox Engines With A Syringe

Post  fredvon4 on Thu Jan 12, 2017 2:00 pm

I too find great low cost usage of the WalMart Turkey versions for $0.88
and m local Tractor supply has all variety of smaller and Larger for o mucho$$ per syringe...I use them for fueling and gluing A LOT
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Thu Jan 12, 2017 5:34 pm

Well, allow me to say this. Walmart Canada SUCKS! no syringes like those mentioned anywhere, I even talked to the pharmacy technician, then off to get a turkey baster. Asked where abouts they are and the girl took me to the aisle where the kitchen stuff is. Well, I guess nobody here in Canada uses a turkey baster anymore! None, zip, zero, not even a spot for them that is empty. I guess I will be off to do the mods as per roddie. I will however pick up a baster or two in teh late spring when I head down to the US for a couple of days, that is if Grand Forks or Fargo have them there. Anyways, thank you all again for teh various suggestions and help given.
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Re: Fueling Cox Engines With A Syringe

Post  pkrankow on Thu Jan 12, 2017 7:14 pm

Know anybody with little kids? Dosing syringes that come with child/infant pain killers (ibuprofen, Tylenol) come with 5cc dosing syringes, which are exactly perfect for baby bee engines. Small fuel line will, with some effort and hopefully no swearing, fit over the tip. As a parent with growing little kids I can say these things collect pretty quickly around teething time.

Phil
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Thu Jan 12, 2017 7:58 pm

Ok. So, I found something interesting, so I ordered the following. I am not 100% sure if this will work, but worth the chance. I will also do the other method too so I have two options.
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Re: Fueling Cox Engines With A Syringe

Post  NEW222 on Thu Jan 12, 2017 7:59 pm

These supposedly have a .9mm internal diameter.

On another note, does anyone have any idea as to the inner diameter of the Cox engine filler tubes?
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