We all know that the Saito and O.S. 4 stroke engines are high quality and relieble engines but what about the Enya 4 stroke engines. Anyone have any experience with them? In particular I was wanting to know about the .46 sized (I think the designation is of that engine is 46-4C) Enya 4 stroke. Thanks.

ENYA 4 strokes are also reliable, powerful and long lasting.
Althogh they need a bit more time to be broken in than OS or Saito,
I should say ENYA 4 strokes are the best balanced engines.
ENYA has only 53 and 155R now, so it looks that ENYA seems to give
up to compete with others. But I still like ENYA engines.
I have ENYA 46,53,60,80 and 120R 4 strokes.

Tsutomu Mabuchi

I believe the 46 is a pretty old motor, I had one in 88, crashed it and spent over 100$ in parts to fix it. I guess it shows you how much I liked it. It was a very well made dependable motor. I currently have 2-91's and a 120r by enya, all good runners. Enya supposedly uses the best metals and it was not unheard of to see a 30 year old 2 stroke still running. Ive had a few os max's, never owned a saito and dont think I will, the only thing I like better than enya is YS motors. YS is definetly the cream of the crop.

My brother has a .53. It spins a large prop for that size four stroke and should last forever.

I have 2 R155's. They run well and make more power than a Saito 150 but the mufflers are very loud and carbs leave a little to be desired. It is the most unusual carb I have seen. It looks like an air bleed but they channel the air to oppose the fuel jet. The channel size appears to change in relation to the position of the throttle barrel.

To choke the engine you slide the barrel out to cover the intake. There is a captive spring loaded detent ball that holds the barrel in place and also allows the choke to work, this must be adjusted properly in order to get the carb to work smoothly.

Thanks for the info guys.

SKYPILOT ONE, that sounds exactly like the Dynamix carb that I used to have on a Webra Speed .60.

LASTLY, what about VT 4 stroke engines, you know the ones with the rotary valves. Any good or bad stories about those?

The HP vt engines are very low on power and very, very quiet. I saw one run but don't remember any numbers, all I remember was the owner was not impressed.

MEOW, there were two versions of the Enya .46, the original and the .46 MKII which had larger main bearings, I believe the front of the crankcase can be bought as a retro-fit to put the larger main bearings in the original. As Sky stated the .53 is happy turning a larger prop like a 12x6, the .46 MKII runs rich in the midrange with a 12x6 due to having to open the main needle farther to run the larger prop, I suspect that is due to the airflow velocity through the carb being slower. Randy Linsalata of RJL reworked the valve timing on the HP, it has considerably more power than when it was made in Austria, but still a shade soft. By the way, my Enya .46 MKII was my very first RC engine. It was run for its first three years on Fox 15% nitro fuel with 20% castor with no dire consequences.

Thanks guys.

I have .46, (2) .53, (5) .80, R120. They are great. The only down side is you can't reach the plug when the engine is running. They come with a remote glow hookup which allows me to hide the connection instead of making a big hole in the cowl. I never worry about the prop arc as that hookup is several inches back. I have two Saitos and a YS. I watch for sales on Enyas first.

Although every manufacturer has it's strong point, I feel the craftmanship
on ENYA and YS. ENYA attracts me with it's old craftmanship and YS with
modern one. I used to put my trust on OS but not so much now, although
they are still making good engines.

Tsutomu Mabuchi

They are also tough engines, my old .46 MKII suffered through me learning to run a fourstroke plus learning to fly, several lean runs and the accompanying instant prop loosenings all while using the above mentioned fuel with 20% castor although that may have saved the day.

I agree about the old craftsmanship...Speaking of looks, I myself prefer the looks of a saito with those nice chromed valve covers. One of my oldest Saito's (an old FA30) has exposed rockers..what a beautiful sight when engine is running. Never had an O.S. though.

I only have one enya 4 strk Sheldons in CA had a sale and I got the 40 for $129 I was very surprised that it was open rocker arms
purrs like a cat very quiet only a exhaust stack (no muffler) still very quiet at and idle you can hear the valves no plane for it yet
finish is outstanding I also picked up a couple irvine 36 2 strks which AJ Colholic made diesel heads for, Sheldons must find these
I guess from the distributors that are unsold left-overs since they are out of production engines but great prices

Hello; I have had some experience with Enya engines; I have 2 46's, and have had a 53 and a 120r, but I sold them to people who are still very happy with them. The 46s are a bit of a different story; one of them I bought from cf-drg, it is a great engine, I flew it in a Dynaflite Mustang for 6 or so years, no problem whatsoever. The other one wouldn't run over 8000 rpms no matter what prop was on it. I took it apart many times trying to find the problem. I finally stumbled on the problem when I measured the cam bushings, they showed .004 ovality, no wear on the cams themselves. After nearly a year of searching for parts, I found a replacement cam chest in England. Now it turns a 11 x 7 9800rpms.

A fellow flier at our field recently bought a pile of Enyas (90, 80,53, and a bunch of two strokes) the first flight with the new 90, the muffler came off eating the female threads on teh muffler. Also there is the learning curve with the unusual carb.

The 53 I had never ran properly, after I sold it the fellow who bought it took the cam chest off and found that the cam idler bearing in the cam chest was cocked. He made a tool to estract it and pressed it in properly. He tells me that it purrs now, but I haven't seen that engine in a plane yet. so between the two I guess you could say that I haven't been too impressed with them.

If you ever need parts or service forget Altech, they aren't interested in helping at all. They don't mind selling them but if you wnat more then that you have to go to Steve Webb in England.

Oh yes. I have one of those lovely open-rocker 40s too.

Interesting stuff/stories guys.

I too have run into problems with getting parts. I need the crankshaft bearings for my .30 Saito (the one with the open rocker arms) and Horizon (Saito's distributor) says that they don't stock those anymore. The only stock parts for the newer closer rocker engines. I've wondered if the crank bearings on the older open rocker Saito's are the same as the newer closed rocker Saitos but I think it woul;d be an expensive test to buy them just to find out they don't fit. *sigh* ANYONE know of a place that would carry parts for these old Saito's? I've been looking on **** for about a year but no luck so far.

Dieseldan, what's Sheldons? Is that just a regular hobby shop or more of a mail order/wide coverage thingie? Would you happen to have their website? I'd love to pick up some NOS stuff.

Hello; As far as bearings go; if you can get the old ones out without damage, take them down to your local bearing supplier. They will measure them up and make sure that you get bearings that will work in your application. If they don't have them is stock, they will be able to get them for you, likely cheaper then you expect.

Donkey Doctor...I've thought about that...the only problem is I wonder if the bearings that the bearing supplier may have will be 'universal' or actually 'application specific'. The engine bearings have to withstand lots of heat...much more than the usual heat buildup if they were just say spinning on some axle. Also I wonder if the front crankshaft bearing is sealed or not?

When it came time to replace the bearings in my well used Enya 90 I ordered them from Boca. I'm sure it cost a bit more than from the local bearing supply house, but they were a very good company to deal will and the product was guaranteed to work. They're on the web - www.bocabearings.com

Edit to add about seals.

The bearings I got from Boca were sealed both sides. I pulled both seals off the rear bearing, as well as the back on the forward bearing so that oil could get through but left the front seal on the front bearing on. Prior to changing bearings that old Enya leaked oil like a Harley. Its been real good since.

Do any of you guys out there know where I can get a used timing gear shaft for my ENYA 80-4C? It uses the same shaft as the ENYA 60-4C. Anyone got a parts engine? Please advise, all responses will be greatly appreciated. Thanks, Ron Whichel [email protected]

Hello; A bearing supplier would not supply defective bearings and expect to stay in business very long. I have been buying bearings for 20 years or more and have never had one fail on me. I have installed them with and without the sheilds and haven't had any issues with them, usually SKF or FAG or NTN bearings occasionally Timken.

Try Steve Webb for your timing shaft, just do a google search for "Steve Webb" and follow the link. If anyone has it, they will.

Donkey Doctor....you're right in general but there are exceptions (many exceptions). I'm weary about the bearings because I've bought 'name brand' wheel bearings for my car from a 'national chain' that went bad in 10,000 miles badly heat scoring my axles in the process and the store said "oh well, we can sell you another set"...they sure as hell didn't offer to replace my axles which got toasted because of their defective bearings. Similarly I recently ordered a transmission pan gasket for an old Mercedes and after waiting 3 weeks received the wrong one even though I explained to the 'trained technician' twice exactly what I needed. And so similarly I doubt if a bearing place will offer to replace my motor if they sell me unsuitable bearings. I find that a LOT of businesses are that way and there's a lot of employees/workers that don't know what the heck they're talking about and are plain incompetent morons and will sell you anything. I may sound like my grandfather but it's true that the days of customer service are long gone. TRUST NO ONE is my attitude.

Anyways, just out of curiosity what should I expect to pay for a set of crank bearings for a model 4 stroke engine?

Hello; There are those who only want the best for their engines, and those that think only the most expensive will do. Boca will help you out there with their cderamic line. I tried stainless bearings in one of my high hours Saito 50's, they are still serving after 8 years now. that plus I worked as a mechanic for 27 years. If your wheel bearings got so hot that they scorched the spindles, there must have been a heat issue that proper lubrication would have prevented. These engine bearings won't suffer from a lack of lubrication.

My last set of bearings cost me $8 front and $12 rear they were for a Surpass 26.

Donkey Doctor, nothing could have saved my axles/spindles since the bearings that my car (Geo Metro) used were ball bearings which are sealed and lubricated at the factory, not the more common beveled roller bearings which you lubricate yourself. This was for the rear axles by the way. The bearings were plain junk that were indeed 'name brand' or I suspect perhaps just packaged in name brand boxes!

$8 and $12 that's not bad. Were these the Boca bearings?

In rereading the post I realzed you were specifically asking about the .46. As you probably know the .46 has been out of production for quite a while. Parts seem scarce by looking through the website listings. The .46 was enlarged to .53 in the eighties and bumped up proportionally in power. The engine then was increased in power by 15% in the late nineties. So the .46 weighs as much as the .53 but is down on power by close to 30%. I love my .53s.
Isn't it amazing how they keep finding more power out of old designs. I wish they still produced their .80 and did the same with it.

Hello; Those bearings were NTN bearings bought at BC Bearings in Nanaimo.

A heighbour has a VW golf that he uses to commute to work and back (60 miles each way). He replaces his rear wheel bearings yearly, claiming that he can feel them going. I changed them the first time, he has done it every year since. I thought it was unusual, but he doesn't mind, and he does have nearly 400,000 kms on it. Looking at the removed bearings you can definately see a lot of wear compared to the new ones. These are roller bearings not balls and are tensioned by the nut on the axle. I thought he was buying cheap bearings but he gets them from VW, so they are factory authorised, and they are quite expensive.