Fueling Cox Engines With A Syringe

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

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.

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.

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....

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.

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

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..

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.

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.

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.

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.

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

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.

https://www.walmart.com/ip/5-x-Monoject-Curved-412-Tip-Syringes-12-Cc-5pcs-Tyco-healthcare-Kendal/140120746

these also work great for wood glue...

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.

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

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.

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

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.

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?