RE: os .46 break- in
 

Thats uncalled for.

I'm not calling ANYONE an idiot. And I'm not IMPLYING it either.

I just want the newbies to get the right info.

You must not have read my post where I explained to you why OS has no interest in your engine developing maximum power. Their only interest is that you don't send it back for warranty.

RE: os .46 break- in
 

I don't do that anymore, I just set em a little rich and fly easy for a few flights. Never had an engine problem yet. Tieing the plane down is harder on the engine than just flying it.

RE: os .46 break- in
 

Of course OS doesn't care if the engine develops full power or not. Why would they have an interest in developing a good reputation for consistent strong running engines? This is getting nowhere, we are NOT going to agree here and before I inadvertently start flaming (because I know you mean well) I'm out of this.

RE: os .46 break- in
 

Okay, I'm done too. We both mean well, and we're probaly making to big a deal out of this anyhow.

Any newbie that really gets hooked on this hobby will find his own method for breaking in engines once he buys a few more. I think FlyByMe has at least got the message that engine break in is not something you should do in a hurry and it's probably best if you get help from a more experienced modeler.

Friends? ;)

RE: os .46 break- in
 

Sure :)

RE: os .46 break- in
 

I was going to keep out of this because everyone was doing fine until the business about what's supposed to happen if you run them 4 stroking rich came along. I've never believed the horror stories so when I bought a brand new ABC (very cheap off Ebaaaaaa :)) I decided to find out what happens. I ran that engine absolutely horribly slobbering rich for 45 minutes. It still had the same pinch as it did when it came out of the box and when I stripped it completely for a very close look the only thing that was starting to run in was the conrod lower bush and the liner. The piston was virtually as new.

I prefer to find things out for myself rather than just repeat what others have read somewhere. So to counter the previous link on "How to run in" here's a link to my full description of that test, with photos.
http://www.rcuniverse.com/forum/m_28..._1/key_/tm.htm

I might add that, after doing all the testing, the best setting to begin running in a new ABn type engine seems to be at the point where the engine is breaking from a 4 stroke into a 2 stroke as others have already said here.

RE: os .46 break- in
 

If ya don't see a little smoke, it's too lean... if it's smoking like a train, it's too fat. 3 clicks fat from top rpm and fly the sucker, thats how I break my engines in, if ya want to call it that.

RE: os .46 break- in
 

I don't really care what thekid does but if he does not learn how to properly tune up the thing, I don't want to hear any whining about "oh it wasn't broken right, thats why the engine has problems." BY the way my install and fly it may be a tad off. What that means to me is I usually spend 2-3 tank fulls to get it dialed in to my satisfaction which i still sort of consider a "just fly it deal."

RE: os .46 break- in
 

I've got the same (FX) engine and just ran in a brand new example using the method described below. Works for my Enya CXs, TT PROS, and O.S. FX & AX's without any longevity issues or performance problems. SF and earlier, I might be a bit more judicious with....but I laughed when I read what the FX pham (in my case a sheet) said. Schnuerled CNC manufactured ABN engine in a rich four stroke?!! What an unnecessary waste of fuel & my time.

Just stick it in the model and fly it. Use a low load prop, set it comfortably rich (no risk of a lean run) 2 stroke, make sure you've got at least 20% oil containing a generous splash of castor for the first quart or so and after checking it'll hold stable @ idle and nose high full hammer, go fly. Try not to hammer it unmercifully for the first half dozen flights, then start gradually leaning it out over the course of the next half dozen. Just like modern cars, you don't have follow a rigorous mysterious "toads eyes, and leg of newt at 5 minutes past midnight only when the moon is blue" regimented run-in routine. Just take it a bit easy for the first hours running or so, make sure the throttle gets the occasional change away from CWOT., ...Oh, and don't load it with an oversize prop.

RE: os .46 break- in
 

yeah, dudes.... ABC engines need a different break in than ringed engines...

RE: os .46 break- in
 

It all comes down to this. You do in the air what I do on the ground. That's pretty much the same idea and it gets the job done. You're absolutely right, though, if the newbe doesn't learn from what he is reading here on RCU, either in this forum or other places, then there is no excuse for an engine that does not run right based on improper break in.

I did see one fellow at the field that was 'trying' to break an engine in. He absolutely refused to bring the engine to full throttle, but had trouble keeping it running at lower RPM. He had the needle open about 5 or 6 full turns, which was tantamount to having the fuel line pour fuel directly into the carb without any restriction whatsoever. He said that it hurt the engine to run it at full throttle. Hmmmm.. I guess my 7 OS's shouldn't run as strong as they do, right? Ah well... what can I say.

Basically, though, we manage to get good running engines with all of our techniques. They all seem to work. So, what's the debate all about?

My last post on the issue.

Later folks.

RE: os .46 break- in
 

Tuning an engine is like fishing, everybody has their own way. How well that way works determines whether or not they catch anything. To a new person, the manual can be very confusing and detailed. Most of it won't work anyway due to the engine at 5000ft or wrong prop or wrong plane size, fuel and rest of it.

"Factory settings" is one of the most misleading areas. How many of you guys have ST low ends out 4 1/2 turns and fuel will not draw at 4 turns? We do here. Part of engine performance is also determend by where you live. InJuly in Ala^%$&bama, you have to change sweaty monokote after every flight to keep the balsa from warping.:D

RE: os .46 break- in
 

You are 100% correct. I had (read HAD) an Evolution 40, 60, and 100. All gave me lots of problems except the 40 at first. Later, though, it gave me the same problems, and all had to do with tuning and carb needle settings. They put those needle valve restrictors on the carbs, restricts the movement of the needle valve. According to them, all adjustments would remain in that range. Not so. Especially the low speed needle. All engines required substantial efforts to get them to run right, but never would run consistently, and that was all 'factory settings' that failed. Even after removing the restrictors, I had trouble getting them to run right.

I brought all three to the local hobby shop and put them on consignment. None have sold yet, and it's been about 6 months.

Want to buy one? Sell it real cheap...

DS.

RE: os .46 break- in
 

wow I never would have thought this thread would have turned into a mud slinging OS conspiricy theory bunch of confusion.
here is a dose of reality all my OS engines( the only glow brand I happen to own) have been run in by the book they run very well and I really dont think I could wring any more power out of them if I did it any other way.
the reason for 4stroking an engine every few seconds is not to use too much fuel or cause dammage, extra wear, or reduce the longevity of a motor. its to cool the new motor so not to burn it on the first run and properly seat the piston.
seems to me some comments are coming from people who don't have OS engines or won't read the instructions given for a product, which is fine for them but if you are going to dispense accusations that a company is asking you to do something so there product doesn't last long or won't perform at peak eficiancy then prove it.
there is no evidence that I could see that would be the case and OS engines seem to last for decades not a decade, this is for a beginner is it not?

RE: os .46 break- in
 

Straight OS eh? Thats a shame. You need to get a couple Super Tigers along with a "helmet!".:D When you have many glow engines over the years, do you still read the manuals? The last time I read a manual was when i got my first Saito 100 3 years ago.

RE: os .46 break- in
 

You can read?:D :D Sorry, just had to.

RE: os .46 break- in
 

I also have gas engines, and have owned several different brands since I started glow fuel modeling around 1972 or so, I happen to like quality and reliability so I have chosen OS over some brands for ease of tuning and consistancy.
yes I do read all my manuals, engine, radio, and airplane, so that I can keep up to date with the tech. things do change from time to time rather than assuming that I know it all and can't learn anything new from the manufacturers.
upgrades and updates happen all the time.
yes I remember having to run gals of fuel for break in to get a engine to run reliable, thankfully with most quality engines thats not needed these days.
if you read a OS manual it says to do a simple run in and set slightly rich and fly a few tanks and avoiding excessive vert. flying, then tune for max performance, its what I have done and will continue doing, until I read the procedure needs to be different.
seems pretty simple to me the thread is a question about OS engines not super tiger or any other brand for that matter.

RE: os .46 break- in
 

Hey, I have relatives somwhere in Tennesse. [8D]

RE: os .46 break- in
 

I would like to thank everybody for their input in clearing up my confusion about engine break-in.........I learned a heck-of-a-lot of information that will definitely help me in becoming a top notch flyer and engine breaker-inner....(is that a word)....The enthusiasm shown in providing the right guidance was very, very, very entertaining as well as informative. I did as one or two or three of you suggested, yesterday, and completed my mission: engine run-in.......I'm new to this sport, well, I built my first two trainers twenty-one years ago, and lost one........it flew away while under my uncontrol, and I crashed the other beyond repair, and then I quit....I bought the first trainer since then for my 15year old son, he wasn't interested, sadly enough for him, and I kept it for almost two years before I decided to build it myself last year about this time.....my first solo (successful solo) was worth the twenty-one year wait.......I'm hooked, hog-tied and collared. Looking forward to the spring for consecutive days of flying, I am a member of a local club and have met a few good pilots, and I ask questions and get plenty of help from them, but getting help from all over the world is something else........My "stik" is flight ready and after I get use to her I have a Venus 2 waiting, and then a U-Can-Do.........my wife doesn't know of my venus and U.......she's just getting used to my second plane right now (the stik) and I don't want to overwhelm her too much, my planes already take up enough of my time as it is..............well thanks again guys.......see you up there





"flying is like breathing.........everybody should do it"

RE: os .46 break- in
 

great to hear of your return . welcome back did about the same myself a few years ago now I am hip deep in planes and wanting more

RE: os .46 break- in
 

This is nothing, wait until you ask for "second plane" recommendations![sm=lol.gif]

RE: os .46 break- in
 

WOW, I didn't realize that the manuals where only in the boxs for shipping cushion. I am realitivly new to this addiction, but I try to read everything I can about this sport including the instructions. In most cases they are writing by someone with more education than myself therefore I believe I can learn from them.;) I have spent the last 20 years as a mechanic working on everything from chainsaws to excavators and have found nothing stays the same except for changes. Hydraulic systems are back to using motor oil instead of hydraulic fluid. Glow plugs have been replaced by ceramic air preheaters in the air intake stream. Diesel fuel has almost no sulfur left in it for lubrication and fuel stabilazation. But as for the proper way to break-in or adjust "ANY" piece of equipment I feel the BOOK is usaaly right, verses {my great uncle Vinny's friend Bob's neighbor said this is how it MUST be done}. If you write with courage, conviction and self authority and reference it, you can always convince some people that you know what you are talking about.

RE: os .46 break- in
 

Well, the famous last words of many-an RC pilot.... When all else fails, read the manual.

DS.

RE: os .46 break- in
 

Well since this thread is on it's way out, what the heck. Manuals are great for beginners and for a while there after. After you've owned several of the same style engine, manuels don't do much. If you change engine types like going to 4 stroke or gas, then you start the manual all over again. ----- I don't look at it as "convincing" but more like dumb enough to go along with it.

I see you two are in "stealth mode"

RE: os .46 break- in
 

Stealth mode? That went straight over my head. Sorry. I must be dense.

Yeah, you must be right. I have three OS 1.20 AX's and only read the manual once.

DS.