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Cox Engine of The Month
August-2024
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
balogh's
![](https://i.servimg.com/u/f95/15/46/86/41/1_balo14.jpg)
"Cox TD09 R/C Beast of Burden featuring Kamtechnik head and DIY metallic fuel nipple"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
Control line T-28/Enya .29 engine removal.......Somewhat destructive
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Control line T-28/Enya .29 engine removal.......Somewhat destructive
I have put this off and put this off. Time to break some eggs.
Darn, I really don't want to do this but the thought of that Enya wasting away eats at me!!!!
Calm before the storm.
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_10](https://i.servimg.com/u/f43/19/15/28/33/spike_10.jpg)
I tried everything, about every modeling tool that I own. I pried, sawed, and hoped to no avail. Finally I peeled off the balsa top, then pried up on the struts and the module popped out. The builder I believe didn't trust the module to stay put in flight by friction alone so he glued it in with some sort of red adhesive??
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_12](https://i.servimg.com/u/f43/19/15/28/33/spike_12.jpg)
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_11](https://i.servimg.com/u/f43/19/15/28/33/spike_11.jpg)
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_15](https://i.servimg.com/u/f43/19/15/28/33/spike_15.jpg)
I don't think that even the family Stradivari could piece this cowling back together but I'm going to give it a try.
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_14](https://i.servimg.com/u/f43/19/15/28/33/spike_14.jpg)
Sitting in a 50/50 mix of kerosene and Marvel Mystery oil right now until I figure out what to do with it. Crock pot/Simple Green removes anodizing and I would like to save what I can, but the engine is well locked up.
Help.................
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_13](https://i.servimg.com/u/f43/19/15/28/33/spike_13.jpg)
Darn, I really don't want to do this but the thought of that Enya wasting away eats at me!!!!
Calm before the storm.
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_10](https://i.servimg.com/u/f43/19/15/28/33/spike_10.jpg)
I tried everything, about every modeling tool that I own. I pried, sawed, and hoped to no avail. Finally I peeled off the balsa top, then pried up on the struts and the module popped out. The builder I believe didn't trust the module to stay put in flight by friction alone so he glued it in with some sort of red adhesive??
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_12](https://i.servimg.com/u/f43/19/15/28/33/spike_12.jpg)
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_11](https://i.servimg.com/u/f43/19/15/28/33/spike_11.jpg)
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_15](https://i.servimg.com/u/f43/19/15/28/33/spike_15.jpg)
I don't think that even the family Stradivari could piece this cowling back together but I'm going to give it a try.
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_14](https://i.servimg.com/u/f43/19/15/28/33/spike_14.jpg)
Sitting in a 50/50 mix of kerosene and Marvel Mystery oil right now until I figure out what to do with it. Crock pot/Simple Green removes anodizing and I would like to save what I can, but the engine is well locked up.
Help.................
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Spike_13](https://i.servimg.com/u/f43/19/15/28/33/spike_13.jpg)
rsv1cox- Top Poster
Posts : 10928
Join date : 2014-08-18
Location : West Virginia
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Well, the only two things that come to mind, other than the crock pot you want to avoid are either let it soak in glow fuel for a few days, or, put it in either an oven or use a torch to get it freed up again. This is however, based on it being castor locked. Neither of these *SHOULD* not hurt the anodizing. Once you get it freed up, you know what to do as you do it well. Also, the above suggestions are based on you not already trying those methods!
NEW222- Top Poster
- Posts : 3895
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
That's a Nice-un lol Putting the cowl back together is going to bee something , Kero and Marvel thats a new one on me but whatever works !
getback- Top Poster
Posts : 10326
Join date : 2013-01-18
Age : 67
Location : julian , NC
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
getback wrote:That's a Nice-un lol Putting the cowl back together is going to bee something , Kero and Marvel thats a new one on me but whatever works !
Kerosene and MMO a poor man's variation of Ed's Red bore cleaner. I used MMO because I'm out of non-synthetic ATF and I don't always trust acetone.
Academic anyway, the anodized head is toast as the glow plugs threads are stripped. First time I have seen this in any Enya. PO must have been a brute. Disappointing though as I was all set up to run it.
No matter, I have many Enya .29's I just have to choose one. But, if I don't go with the red head I will have to cut new exhaust and needle holes in the cowling.
![Control line T-28/Enya .29 engine removal.......Somewhat destructive Enya_221](https://i.servimg.com/u/f43/19/15/28/33/enya_221.jpg)
I did get the little Cox 5cc vented to run though after trying Traxx 10% to no fun. Then it ran fine on Cox 35% but fuel leaked out of the bottom vent tube. Got to swap the tank top to bottom but then the overflow tube won't align with the hole in the cars body.
Overall not a great day.
![Sad](https://2img.net/i/fa/i/smiles/icon_sad.gif)
Edit add: What am I thinking of.........forgot all about this little beauty
![Sad](https://2img.net/i/fa/i/smiles/icon_sad.gif)
![Control line T-28/Enya .29 engine removal.......Somewhat destructive 3_enya15](https://i.servimg.com/u/f43/19/15/28/33/3_enya15.jpg)
Might try all three, best runner gets the job.
rsv1cox- Top Poster
Posts : 10928
Join date : 2014-08-18
Location : West Virginia
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
The Enyas normally have a brass insert in the head rather than the plug screwing directly into alloy. Must have really cranked that sucker down. 1/4" UNEF may be hard to find, but I'd probably try for a Helicoil.
Oldenginerod- Top Poster
- Posts : 4000
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Here you go. Not cheap! (for an Aussie anyway).
https://www.amazon.com/Recoil-34040-32-Standard-Thread-Inserts/dp/B071JG5FR4
https://www.amazon.com/Recoil-34040-32-Standard-Thread-Inserts/dp/B071JG5FR4
Oldenginerod- Top Poster
- Posts : 4000
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Bob, Bob Matte might be able to repair that with a helicoil. http://www.flyfreeflight.com/Site/Home.html He's reasonable for sure and he would more than likely have the proper size in stock without having to purchase several of them.
Ken Cook- Top Poster
- Posts : 5573
Join date : 2012-03-27
Location : pennsylvania
rsv1cox- Top Poster
Posts : 10928
Join date : 2014-08-18
Location : West Virginia
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Bob, Jim slipped my brain waves. He's a very nice guy. I met him a few times in Huntersville. Here's his site http://www.leemachineshop.com/
Ken Cook- Top Poster
- Posts : 5573
Join date : 2012-03-27
Location : pennsylvania
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Not cheap, but apparently better than Heli-Coil. I believe this is because it seals at the head. I know a couple people that have used these and they swear by them. I have read all good, in both RC and other applications. May be worth reading into should you decide to try it. They do make 1/4-32 for our glow plugs.
https://www.timesert.com/
https://www.timesert.com/
NEW222- Top Poster
- Posts : 3895
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Thanks Ken and Chancey.
Considering that stripped glow plug hole I tossed it in the crock pot yesterday about 3 PM and forgot about it until about 10. Unpluged it and just left it in the pot.
This morning I washed it off in Simple Green, rinsed it, blew it out with compressed air and back to the kero/MMO mix until I get a chance to deal with it.
Yup, removed all the anodizing.
Wonder if I should have it (and the drive washer) anodized first then repair the GP hole.............or visa versey.
Considering that stripped glow plug hole I tossed it in the crock pot yesterday about 3 PM and forgot about it until about 10. Unpluged it and just left it in the pot.
This morning I washed it off in Simple Green, rinsed it, blew it out with compressed air and back to the kero/MMO mix until I get a chance to deal with it.
Yup, removed all the anodizing.
Wonder if I should have it (and the drive washer) anodized first then repair the GP hole.............or visa versey.
rsv1cox- Top Poster
Posts : 10928
Join date : 2014-08-18
Location : West Virginia
Oldenginerod- Top Poster
- Posts : 4000
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Bob anodize first...the non aluminum insert may mess with the electrodes or anodes
fredvon4- Top Poster
Posts : 4007
Join date : 2011-08-26
Age : 69
Location : Lampasas Texas
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Good point Fred. I myself, would not have thought of that. While it still may work, it is definately not worth the risk.
NEW222- Top Poster
- Posts : 3895
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
fredvon4 wrote:Bob anodize first...the non aluminum insert may mess with the electrodes or anodes
Thanks Fred, I'll remember that.
But if I can find some of that Dupli-color stuff that Rod showed, I may give that a try on a test piece.
Found it:
https://www.ebay.com/itm/Dupli-Color-MC200-Red-Metal-Cast-Anodized-Color-11-oz/254203982372?epid=1811805786&hash=item3b2fbcf224:g:-0EAAOSwV9RcuJr~
rsv1cox- Top Poster
Posts : 10928
Join date : 2014-08-18
Location : West Virginia
Re: Control line T-28/Enya .29 engine removal.......Somewhat destructive
Well Bob, I know you probably don't need the temptation, but have you found this one yet?
https://www.ebay.com.au/itm/24-Early-ENya-19-redhead-c-l-model-airplane-engine/153501390307?hash=item23bd6555e3:g:~rwAAOSwlk9c6Jjz
https://www.ebay.com.au/itm/24-Early-ENya-19-redhead-c-l-model-airplane-engine/153501390307?hash=item23bd6555e3:g:~rwAAOSwlk9c6Jjz
Oldenginerod- Top Poster
- Posts : 4000
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
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