Hi Guys,

I am looking to get dates on these engines. In think the Enya 45 is from 1970 and the Enya 29 is from 1969, but not sure about the others and I dont know
what the .049s are. It also looks like the Enya 29 has been set up for a boat? Can I run it as an airplane engine? Not sure what the part in pic G is, cooling
head for boat?

I am into the vintage planes, so I was hoping to get the engines running again and find some kits that were typically used with these engines in the
years they were manufactured, any kit and engine matching suggestions?

Any idea on what % nitro to run any of them on?

Any of them worth $$?

Thanks!!

Mod, please move this to the Vintage section if you spot this, Thanks.

No Nitro please, you will "kill" them, they originate from the time when Nitro was only used for
competitions when the price of engine was sacrified for the victory. And use 25% castor and 75%
methanol is maybe the best things to start with.

As for the price - place them on eBay and sale them, the market will set the price. As intial
bargain price I would put 9 USD, i.e. just a bit below the price where eBay is charging more,
in fact check with eBay - in September they had free of charge something offer...

What I would do is to sale them and buy one good new one.

Some of the engines go back to the mid sixties. The newest one is the OS Max 30 The oldest is the Max 15 with the steel fins.

They were all just run of thr mill standard fair engines from the latter 60's through the early 70's

The Enya 45 and 60 are pretty nice. They were powerful engines for their day. They have ball bearings.

These bushing engines need 25% oil. The two Enya's don't need so much oil.

They all look badly rusted. If the damage extends to the inside, your chances of getting them running again are slim. If you do, however, ditch those nylon props! No nitro, too! The Enya 29 is definately a boat motor (with flywheel, shaft coupler, water-cooling head jacket, and a shorty muffler), and could have collector value because of that.

Dr.1

Yes, about the props, look at the midle engine - the prop seems to have a crack near the head;
if that is the case better cut it in pieces and trow it away - that can harm someone badly if used.

The 1/2A is a Cox medallion 049 on a Cox (?) tank mount.

The Cox engines are designed to run fuel with 15-25% nitro + 25% castoroil.. Without nitro the Cox engines are powerless.

Sure but where do you get spare parts for them, because more Nitro means more Spare parts too ...

There is in fact further stronger point: - Cox are almost useless in the presense nowadays of batteries and controllers
with power efficiency of 90+%. Almost all engines below 15cc are already on the way to the museum and soon the
bigger ones will follow. Look at F3A - many fly there electric. The batteriy price is the inhibitor but soon that will go
too - Porshe showed right now on Frankfurt Motor show an SUV(!) with 40% of the power from batteries, and Cessna,
the new Light Aircraft Cessna 162 for two people was demonstrated to run on batteries with SAME(!) endurance
as on gasoline version, sure the Efficiensy is everything in Aviation and nothing we can do for those old "fellows" than
to clean them and place them in the museum, like the steam machine is no longer a choice. In fact I wander if
some one on RCU is flying an RC with Steam Engine - that would be terrific to see.
Well I will be missing my 15cc and 26cc engines but there is still time to enjoy them till the
batteries get lot cheaper.

Cheers,
Nick

There is a solid group of 1/2A fliers that will keep Cox engines in the air for a long, long time to come. I'm one of them. Just check out the 1/2A forum here at RCU. Parts are not hard that hard to find. I had more trouble finding parts for an OS SF .61 than I have had finding Cox parts. Granted, the picture may be different in Finland.

Honestly, I've never bothered myself worrying about what the majority does. I don't belong to it anyway. I love 1/2A and older engines, so that's what I fly. I can't imagine ever running out of Cox engines, they made them by the millions.

David

Almost all engines below 15cc are already on the way to the museum and soon the
bigger ones will follow.

In Finland, maybe. Don't bet on it here in the USA, though. There are those of us (ME!) who will NEVER fly electric. We enjoy the gasoline and methanol fuel engines too much. It's not a matter of efficiency, but a matter of a certain style.

Dr.1

Dr1Driver - three cheers! I too just can't get too excited about the electrics at this point. To me it just seems that there's no "soul" to an electric powered airplane..

The Enya 29 model 5224 was first made in 1964 and yours is the more common plain bearing type. No other carb can be fitted to yours because of the square intake housing and the water jacket is a shrink fit over cut down cylinder fins.

The 45 model 6001 was an absolutely incredible CL stunt engine back in its day (early 70's from memory when I bought mine). The Enya 60 is a 60-II from 1965 and has two rings like the 45.

Recipricating engines power cars motorcycles and airplanes. Electric moters power washing machines and hair dryers.

jess

Wow guys, Thanks.

I will not be using the props, Have a whole bunch that came with this stuff, some real old looking wood ones as well.

What is wrapped around the exhaust ports in 'J' ?

Keep info coming if you got it.

PS. Please don't hijack this thread and turn it into an electric vs. fuel thread. Plenty of those anyway. Besides, don't know of many full scale electric planes to model.

In "J" this is most likely a muffler on this engine but the first devices that Cox brought out that looked like this were exhaust throttles

It IS a muffler, I had one on my old Cox EZ Bee. It had a slider on it so you could adjust for sound VS performance, as per the instructions. That was my very first RC plane...with one servo on an old Futaba Attack Mode 1 controller... Ancient Technology You could either go up and to the left or down and to the right... [:'(]

But, it's a muffler that robs a LOT of power. Besides, there aren't too many things that sound as nice as a screaming 1/2A engine. I tried one of these mufflers a while back on a Randy Randolph Bee-Tween. Needless to say, I'm removing it and going back to an APC 5.7x3. However, it was quiet enough to fly at a park with the 7x3.

Watch that little ,049 prop, that engine will bite your finger in a heartbeat! It likes high nitro, too. Cox fuel is best for it.

Dr.1

I gave these engines an antifreeze bath, what material can I use to replace the gaskets?

Hi!
Paper!

Really? Just plain old paper such as what is in my printer right now? How many thick?

Magazine covers are probably better but ordinary printer paper is OK.

Cut the insides to fit and punch the screw holes with an ice pick, awl, or scribe. Assemble the part and trim the outsides with an Exacto type knife.

You can also buy gasket material at the auto parts store.