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Enya 29-V 5225 - Page 2 Empty

Enya 29-V 5225

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Post  GallopingGhostler on Tue Nov 17, 2015 9:50 pm

You're welcome, Bob. Kavan used to make universal mufflers for different engines back in the 1960's and 1970's. An engine specific machined adapter fits the exhaust port of the engine to the inlet port of the muffler.

This one, the bullet front is actually a venturi style with slits all around. There is a machined aluminum disk that can be fitted, which seals the slits for quieter operation. That is currently how I have it configured. The muffler has a large chamber and a reasonably large outlet, so even with the disk it is relatively free flowing, gives the engine more power than the stock Enya muffler.
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Post  larrys4227 on Tue Nov 17, 2015 9:54 pm

Yeah ... thats a really cool looking muffler. And I do remember Kavan from the 1970's .... my dad was always buying their stuff.
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Post  Oldenginerod on Wed Nov 18, 2015 1:53 am

I have a similar looking Kavan muffler on a Torpedo .40 but the front dome is missing. Must be a different set-up to the one pictured. The muffler is still sealed at the front, so is functional, but mine looks like it just has a screw-on "dress-up" dome to make it neater. I'd be interested if anyone has a spare screw on dome to spare.

Rod.
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Post  rsv1cox on Wed Nov 18, 2015 6:24 am

While everyone is showing off their Enya stuff (I'm lovin' it) let me brag about my two latest Enya finds, one in Australia the other in France.

A new in the box Enya .63 "Typhoon" Enya's first serious production large displacement engine and the only one to carry a serial number.

Enya 29-V 5225 - Page 2 Enya_610

Enya 29-V 5225 - Page 2 Enya_611

And perhaps the rarest of all Enya's, the three case bolt .19 Typhoon Enya's first production engine.  

Enya 29-V 5225 - Page 2 Enya_t10

Almost forgot this early .10 Enya very Cox like boxed similar to the Space Bug Juniors. It's a throttled engine.

Enya 29-V 5225 - Page 2 Displa10

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Post  larrys4227 on Tue Nov 24, 2015 5:12 am

Hey fellas .... If I can ask here ... I really appreciate your knowledgeable opinions.

Oil content for this .29 .... I've seen everything from "Enya recommends 20% oil" .... all the way up to "29% is a must". Its all over the board, depending on who you talk too. It might be because one person is talking about a 1950's version .... and another is referencing a 1970's.

What do you guys think for my .29-V 5225???

Thanks! Larry
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Post  Oldenginerod on Tue Nov 24, 2015 5:38 am

Any Enya documentation I have (all from the 70s) states 20% castor and 0%-5% nitro. I think any more oil would be a waste & unnecessary mess. Having said that, I happily use 20% synth/castor blend with only 3% castor. So long as you've got some castor. The engines are pretty forgiving. Just don't wring their neck in flight. Keep them on a slightly rich setting and they'll go forever.
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Post  rsv1cox on Tue Nov 24, 2015 6:53 am

Good advice from Rod. Years ago '70's/'80's when I was a more active flyer I just ran what the LHS provided along with everyone else at the time. In the '70's it came in rectangular cans that fit nicely on your flight box with a fuel pump piped in, later it came in bottles, not so nice. I can't remember anyone ever having a fuel problem.

Today, after listening to advice offered here I bumped up the castor for my other than .049's fuels up to 20% to bad it has 20% nitro but I'm not tossing it out and my Enya's run fine on it. But I am looking for some 5% nitro/20% castor.

For my Cox engines I just run off the shelf Cox 25 and 35% fuels. Although I have yet to tap into the 35% fuel.

Bob

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Post  larrys4227 on Tue Nov 24, 2015 6:56 am

Thanks guys ..... I have a couple gallons of Sig Champion 10/20 .... the one with the Klotz in it.

It'll have to do as far as the nitro content. I have a couple quarts of castor, so if I needed to bump it up, I have plenty.

Sounds like I don't need to tho ... Thanks!!
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Post  gcb on Tue Nov 24, 2015 7:12 am

Oldenginerod wrote:Any Enya documentation I have (all from the 70s) states 20% castor and 0%-5% nitro.  I think any more oil would be a waste & unnecessary mess.  Having said that, I happily use 20% synth/castor blend with only 3% castor.  So long as you've got some castor.  The engines are pretty forgiving.  Just don't wring their neck in flight.  Keep them on a slightly rich setting and they'll go forever.
 
The only two glow engines that are reputed to need 29% castor are the Fox .35, because it is a maximum size engine in a small case with less than adequate cooling fins which needs oil to carry off some of the heat, and the McCoy .35 because of the metallurgy used in the piston. Other Foxes seem to thrive on less oil.

The reason for castor in iron/steel setups is shown if you take off with a too-lean setting. Castor will protect the engine and sometimes prevent or lessen thermal runaway better than synthetics. Of course synthetics have been improved over the years so perhaps a GOOD (expensive) synthetic also prevents thermal runaway also.

How much castor is up to you. As little as 3%-5% synthetic will keep your engine running cleaner and remove most of the varnish buildup so you have a lot of latitude.

George
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Post  larrys4227 on Wed Nov 25, 2015 5:08 am

I posted this pic in another Enya thread .... but wanted to keep this thread alive with it too.

Enya .29-V mounted in a Flight Streak. Jim Lee venturi, and a Big Art tongue muffler is on the way.

Enya 29-V 5225 - Page 2 Large
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Post  getback on Wed Nov 25, 2015 7:35 am

Hey Larry did you paint that fuel cell and if so with what (tested)?/ Looks Good and blends in really good , of coarse if it were me I would have painted it BLK. but that's just me . getback What?
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Post  getback on Wed Nov 25, 2015 7:38 am

I thought tongue I had posted Bob's new addition's look Really Cool those are some of those $$ engines Smoking Keep'em coming . getback Popcorn
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Post  GallopingGhostler on Wed Nov 25, 2015 7:59 am

larrys4227 wrote:I posted this pic in another Enya thread .... but wanted to keep this thread alive with it too. Enya .29-V mounted in a Flight Streak.  Jim Lee venturi, and a Big Art tongue muffler is on the way.

Enya 29-V 5225 - Page 2 Large
Sharp looking Flite Streak, Larry, nice. - George
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Post  larrys4227 on Wed Nov 25, 2015 8:03 am

getback wrote:Hey Larry did you paint that fuel cell and if so with what (tested)?/ Looks Good and blends in really good , of coarse if it were me I would have painted it BLK. but that's just me . getback What?

I believe its just good 'ol Rustoleum .... painted the same time as the plane. Yeah, its held up pretty good.
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Post  GallopingGhostler on Wed Nov 25, 2015 8:20 am

Personally I like the way Larry painted the tank to match the plane, looks sharp, different than the usual "hey I got a tank hanging out there" look. - George
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Post  getback on Wed Nov 25, 2015 8:32 am

Thanks Larry I have wondered about weather the paint would stay on metal being slicker under Nitro conditions , It does looks a lot better either way red /blue/black/green/ whatever than just a metal tank mounted there Smoking getback Very Happy
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Post  larrys4227 on Wed Nov 25, 2015 8:51 am

I should take the time to do all my tanks .... that one always gets comments.

I have a couple of really nice looking profiles .... and the sore spot is the tanks. They look like crap. You'd think I would take em off and spray 'em real quick ...

Ehhh .... too much to do ... and not enough time ... Smile
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Post  GallopingGhostler on Wed Nov 25, 2015 9:04 am

Aesthetics isn't everything. Sometimes, "git 'er done" is more important.
Happy Thanksgiving, all! Turkey
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Post  larrys4227 on Wed Nov 25, 2015 10:16 pm

Got off work early today, and while the sun was still shining, I took the .29-V out back and put half a dozen runs on the engine.

Had a bit of trouble getting it started the first time .... but not much unusual about that.  Funny thing .... the needle had to be out about 5 turns.  I have to say .... very consistent runner.  It was holding whatever RPM I set it at during each tank.  Another funny thing .... there was no black goop in the exhaust residue. I would have expected some, considering the no-time, low-time of the engine condition.

I'm hoping the wind stays down for a couple hours in the morning .... I'm gonna go fly this thing.

Once again, my wife wants the kitchen to herself for a few hours on T-Day morning .... so I get the Kitchen-Pass to do what I want. Smile
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Post  gcb on Thu Nov 26, 2015 9:08 am

larrys4227 wrote:...Once again, my wife wants the kitchen to herself for a few hours on T-Day morning .... Smile


Imagine that! Smile

Everyone have a safe and Happy Thanksgiving.

George
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Post  larrys4227 on Thu Nov 26, 2015 10:26 am

Spent a couple hours at the field this morning .... wind wasn't to bad .... and got up 5 flights.

The Enya ran pretty good on a 10x5 prop and pretty decent laps times. But, it has an issue with transitions to inverted. Its got a stutter/hesitation .... it will normalize once I hit a 1/4 lap after going inverted ... but what a pain every time I tried to do a H-8, or exit to inverted from inside loops.

The plug is a Thunderbolt with the idler bar, and its tached at 9.1-9.2K. I tried moving the tank really high, but same thing. Lower was much worse.

I'm thinking I'm running it too rich (theres a ton of smoke) and when I make the transition/exit into inverted/etc ... the fuel is splashing against the glow plug causing it to wash out

My plan next time out .... hopefully tomorrow ... is to put a 9x5 prop on, and kick up the RPM's

Other than that .... I'm pretty pleased with the engine. Had to add some tail weight after the first flight ... this engine is heavier than anything else I've had on the Flight Streak ..... mostly McCoys and a Fox.
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Post  GallopingGhostler on Thu Nov 26, 2015 11:42 am

larrys4227 wrote:Other than that .... I'm pretty pleased with the engine.  Had to add some tail weight after the first flight ... this engine is heavier than anything else I've had on the Flight Streak ..... mostly McCoys and a Fox.
Yes, that is one thing about Enya's, their slightly greater weight, about akin to other manufacturer's later Schneurle plain bearings are a little hefty in weight. I like Enyas though, because they run smoothly, throttle easily, seem to be really bullet-proof, can't ask for more.

OS Max mid 1960's engines are lighter, but finding a good one is hard.
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Post  Ken Cook on Fri Nov 27, 2015 3:45 am

Larry, what is your oil content and what is the fuel manufacturer? I've had similar issues with these engines and also Max-S engines when using too high of an oil content. I was using Sig 25% oil and what you described exactly happened. I tried Red Max and another brand and the run considerably changed even though the fuels were similar in oil and nitro. Enya's like 20% and really no more and if higher oil percentages are used it can do as you described or just plain shut off when you need it most. I noticed these issues went away when using Powermaster GMA 50/50 and I never looked back. I certainly would try and lean it up a bit and give it a go. Have you tried another plug? I really would try a Enya #3. While Thunderbolt plugs are my choice for nearly all of my engines for their performance and reliability, I found they don't always offer the best performance for certain engines. I would not hesitate to try another Thunderbolt as an experiment and re fly.
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Post  larrys4227 on Fri Nov 27, 2015 4:49 am

Hey Ken --- I'm using Sig Champ 10/20 ... I have about a 1/2 gallon thats been bumped to 22-23% oil, and thats what I used yesterday. The Thunderbolt is pretty much new ... was in a Fox for a few runs.

I have some unaltered Sig fuel that I can take today .... and I have OS A3's, which is primarily the plug I use in most engines.

I'll have a few hours again this morning before the wind comes up ....
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Post  Ken Cook on Fri Nov 27, 2015 2:22 pm

While the slight added oil seems like it shouldn't be an issue, I would try the fuel in it's stock form. I know exactly the problem your experiencing as I've had very similar engine runs.
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