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Making Glowplug Igniter Adapter For Cox Engine?

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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  pkrankow on Sat Apr 23, 2016 12:45 pm

If you can get some Anchor Marine tinned stranded copper wire... Dead limp, oil and chemical resistant covering, corrosion resistant, super fine strands so very flexible, and super easy to solder being tinned already.

Realistically lamp cord is really _very_ good. Cheap too. As long as you are using new, or strip back to clean wire, soldering will be easy enough. The plastic is pretty resistant to fuel. It does stiffen at low temperature but I have use it below freezing without problems. (Yes, I do fly in the snow) If possible join by crimping before soldering. The joint will be stronger since it is better supported.

I never needed added protection for the head, even in the winter (other than the yarn), just enough power. I use D cells, 3 of them in parallel(2 is probably enough). On a hot summer day a single AA is all it takes.

The funny thing about winter flying is before launching the engine will run fine without yarn, but after launch will start to sag and quit. Real comedy there. A turn or two of yarn in the two grooves between the three largest fins in the head and "Bob's your uncle!" This works well in the upper teens F, I haven't been out when it is colder than that.

Phil
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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  RknRusty on Sat Apr 23, 2016 12:55 pm

This connects directly to my 4ah pocket igniter. Made by Sullivan



I've made the same thing with a wood clothespin, using the contacts from a similar one that fell apart when the plastic died. It was Thunder Tiger brand.

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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  NEW222 on Sat Apr 23, 2016 5:57 pm

Sullivan, huh? Now that rings a bell where I saw that before. I now have to go searching. But, that in turn is what I was exactly wanting to make.

Also, my two Cox Igniter clips have been replaced with larger diameter copper speaker wire and they do indeed work well. I also am running approximately 5 feet of cable to them.
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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  roddie on Sat Apr 23, 2016 7:26 pm

RknRusty wrote:This connects directly to my 4ah pocket igniter. Made by Sullivan



I've made the same thing with a wood clothespin, using the contacts from a similar one that fell apart when the plastic died. It was Thunder Tiger brand.

Rusty, that's a similar clip set-up to the one that Greg and his son Nicholas used to bench-run the Tee Dee Traveling Engine. It looks like a nice portable clip.

I have a yellow clip very similar to yours Rusty. It came in a Sig 1/2A Flight Pack.



These flight-packs kept me going through the 1990's after genuine Cox Fuel became scarce. The pints of Sig Champion 25 ran just as good as Cox Super-Fuel did. I bought a couple of these flight-packs over the seasons.. and my first had a cool little red rubber primer-bulb with a brass tube-fitting and 4" of silicone fuel-line. It held about 8cc's of fuel.. and I loved it! I still have it.. although it's pretty ragged now. Later flight-packs had a syringe instead. A small roll (24") of 18ga. lamp-cord for the glow-clip, a spool of Dacron flying-line, line-connectors, a handle and instruction sheet were included. It's still available.. and not too unreasonable if you combine it with a Skyray kit. If you had only one Cox Babe/Golden Bee engine and nothing else.. this would be a good start to having some fun for less than $50.. probably including domestic shipping.

http://www.sigmfg.com/cgi-bin/dpsmart.exe/IndexText/FSIGSH566.html?E+Sig

The Skyray kit link doesn't work.. but is currently $15.95. The Dewey-Bird is another $5.00.





It would be kinda' cool if the we could have the pair of copper parts to the original Cox clips specs. laser-cut from a sheet.. (pokes Roger Harris.. Wink ) and have the plastic part 3D printed (pokes Jason or Ian..) in a collaborative effort to design a Cox "Super-Clip"!
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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  pkrankow on Sat Apr 23, 2016 8:57 pm

http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXFU05&P=7
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXFU06&P=7

The one ear can be flipped around and the ends bent.  I have one of these grafted onto a cloth spin, and a good plastic version.  I think I am using a longer lamp cord on both of them.  I use this type on almost all engines.  I don't have a pocket size unit.

Bernie has the OEM style
http://coxengines.ca/cox-glow-plug-clip-oem-style.html
as does Matt
http://www.exmodelengines.com/product.php?productid=17865&cat=259&page=1
http://www.exmodelengines.com/product.php?productid=17946&cat=259&page=1

There is also the 2 D cell tray, I bought one of these, but I bought it to give to my nephews.  The cord is quite short... I have used it and there is no problem.  I just like a longer wire.  The clip is meatier than the Sullivan.  Not significantly different.
again Bernie and Matt both have
http://coxengines.ca/cox-starter-battery-box-with-clip.html
http://www.exmodelengines.com/product.php?productid=17769&cat=259&page=1

and the clip by itself too
http://coxengines.ca/cox-glow-plug-clip-tweezer-style.html
http://www.exmodelengines.com/product.php?productid=17713&cat=259&page=1

Knocking one of this style up from sheet brass and a cloths pin is pretty easy.  Dimple the one end with a round end punch on end grain soft wood, use a nail with the point ground off.  Cut a shallow triangle out of the other piece making a not really fork that resembles a curve.  There  should be one exactly like this in my Dad's stuff (at his house 2 hours from here).  We used it for years.  It needs reshaped regularly since the end with the fork bends easily.


Failing that a couple alligator clips work great.  A larger type can grab the outside of the head, a smaller type with an insulating boot grabs the center.  This works on all size engines.  Good chance you have lying around.  The larger is like on a small car battery charger, and the smaller is like on a volt-ohm meter.

Phil
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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  RknRusty on Sat Apr 23, 2016 10:14 pm

Beware of that black one if it's the Thunder Tiger brand.
http://coxengines.ca/cox-glow-plug-clip-tweezer-style.html
The plastic rots in the course of one season and breaks into several pieces. This is the one which I replaced the plastic with a clothes pin and it worked fine. Still have it in my 1/2A box, but since I use Bernie's Merlin drop-in* plugs, I use the spring release style sub-c pocket glow igniter I mentioned earlier(with no need for an extension and clip). Reloaded with the 4ah(4000mah) NiMH cell from Interstate. Get rid of the 1.3ah NiCd
The yellow Sullivan holds up very much better.
Rusty

* The Tall 5-fin Texaco/"extra cooling" clamp ring interferes and must be hogged out with a drill to work without an extension

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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  pkrankow on Sat Apr 23, 2016 10:31 pm

RknRusty wrote:... but since I use Bernie's Merlin drop-in* plugs, I use the spring release style sub-c pocket glow igniter I mentioned earlier(with no need for an extension and clip). Reloaded with the 4ah(4000mah) NiMH cell from Interstate. Get rid of the 1.3ah NiCd
The yellow Sullivan holds up very much better.
Rusty

* The Tall 5-fin Texaco/"extra cooling" clamp ring interferes and must be hogged out with a drill to work without an extension

That alone is a good reason to go to drop-in style heads.
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Re: Making Glowplug Igniter Adapter For Cox Engine?

Post  RknRusty on Sat Apr 23, 2016 10:51 pm

pkrankow wrote:
RknRusty wrote:... but since I use Bernie's Merlin drop-in* plugs, I use the spring release style sub-c pocket glow igniter I mentioned earlier(with no need for an extension and clip). Reloaded with the 4ah(4000mah) NiMH cell from Interstate. Get rid of the 1.3ah NiCd
The yellow Sullivan holds up very much better.
Rusty

* The Tall 5-fin Texaco/"extra cooling" clamp ring interferes and must be hogged out with a drill to work without an extension

That alone is a good reason to go to drop-in style heads.
Yes, I believe this short Kwik Klip III(plus converting to Merlin plugs and clamp rings) is the complete answer to this whole thing.
http://www.ebay.com/itm/Dubro-396-Kwik-Klip-III-Glow-Starter-Ignitor-with-Charger-DUBP1386-/171843040917?hash=item2802a4b695:g:iFgAAOSwDNdVkwwL

Catalog # Dubro dub-396 is the short one with replaceable battery plus charger

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