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HelicopterEngines Plugs Mufflers Fuel › Hobby Services stance on Hyper bearings
11-22-2006 03:40 PM  11 years agoPost 41
Pattern_Flyer2

rrNovice

Royston, Hertfordshire, UK

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buy a different engine then.....

Its a fact of life that the more performance you push the higher the maintenance will be...compare the power of the hyper and its RPM pushing 2000 plus head speeds with the 40's that we used to use years back...essentially with the same size cases and bearings...they will wear quicker and need replacement.

The hyper IS the best engine for 50 size heli's in the same way that the OS61 rear Prettner was for many years in F3A competition...to get the performance out of them we pushed 20-30% nitro through on 8% synthetic oil to be competitive....result 4 or 5 hour bearing life..

OS response was to lower the nitro and use 18% caster to drop the revs by 2000 and make the competitive engine uncompetitive.

If you have an issue with the bearing life or design buy a different engine more suited to your needs but i gaurantee you won't find one so just buy the bearings in bulk, get a good crank puller and change them over regular when performance drops off..

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11-22-2006 03:47 PM  11 years agoPost 42
supertigre

rrApprentice

Castle Rock, Colorado

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Patternflyer

You seem to be missing the point here. The OS Hyper has a problem. The problem is that some of their engines eat bearings regardless of what you do to maintain them, and others last almost forever regardless of what you do to abuse them. The fact that I sell 5 times more Hyper bearings than any other engine group tells me that the Hyper has a problem! You can't convince me that the Hyper is 5 times more common than the 40-46FX!

Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs

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11-22-2006 03:52 PM  11 years agoPost 43
supertigre

rrApprentice

Castle Rock, Colorado

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Shemp

I, too, do not buy the claim that the fuel is causing corrosion. I know that in the UK, there are just as many problems with Hyper bearings as in the USA and they have a lot of unique fuels over there. I also sell a lot of Hyper bearings to customers in Australia, New Zealand, Spain, Italy and Israel. Are they all using American fuel?? If OS can prove that certain fuels are responsible for this problem, then they should identify this in their literature. So far, all we get is its our fault!

Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs

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11-22-2006 03:58 PM  11 years agoPost 44
Zman

rrKey Veteran

Florida

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If you have an issue with the bearing life or design buy a different engine more suited to your needs but i gaurantee you won't find one so just buy the bearings in bulk, get a good crank puller and change them over regular when performance drops off..
Totally missing the point. OS advertises the hyper is designed for the high reving use. OS advertises this is the latest greatest engine. Most importantly, although I have and will (until something else is available) keep replacing bearings, I shouldnt have to. 25-30 gallons is one thing and can be argued normal but look how many guys are loosing them in 2-3 gallons, unacceptable and OS certainly didnt put that in their advertisements for this engine. Secondly, what else is out there? The evolution????? Could try a Webra but then I have to buy special pipes/mufflers. Would love to have a YS but good luck finding one. I think the better solution is for OS to stand up to the plate and fix the problem on what otherwise is a super engine.

Z

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11-22-2006 08:44 PM  11 years agoPost 45
ShempHoward

rrKey Veteran

San Francisco, Ca - too many beggars + bad drivers

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OS Japan does not advertise here in the USA. The ad copy is determined by Hobbico who is the importer + distributor.

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11-22-2006 08:50 PM  11 years agoPost 46
Zman

rrKey Veteran

Florida

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OS Japan does not advertise here in the USA. The ad copy is determined by Hobbico who is the importer + distributor.
Even better yet since they are the ones who blatently are putting the blame on the user for doing "high rev 3d"........


Furthermore, dont you think that just maybe Japan has some influence in what hobbico advertises??????????..........unbelievable

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11-22-2006 09:25 PM  11 years agoPost 47
ShempHoward

rrKey Veteran

San Francisco, Ca - too many beggars + bad drivers

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I think it is the Importer/Distributors call as to what type and how much advertising
to fund. Ever see the OS ads in a UK based RC magazine and compare them to any of the OS ads in US based RC magazines?? They have no resemblance whatsoever. Ripmax is the UK Importer.

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11-22-2006 09:58 PM  11 years agoPost 48
Pickle

rrNovice

Shorewood, Illinois - USA

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My 2 cents:
I replaced a bad bearing in my 50SXH with the cheapest bearing I could easily find - from McMaster Carr. I figured I'd just let the engine go a little while longer with the cheap bearing, until it rattled apart, and then get a new Hyper. Well, no luck on the McMaster bearing going bad - the SXH keeps going and going - 30 gallons at least on it. Go figure!!

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11-23-2006 12:52 AM  11 years agoPost 49
Zman

rrKey Veteran

Florida

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I think it is the Importer/Distributors call as to what type and how much advertising
to fund. Ever see the OS ads in a UK based RC magazine and compare them to any of the OS ads in US based RC magazines?? They have no resemblance whatsoever. Ripmax is the UK Importer.
So I guess what you are saying is, hobbico receives a new release engine from OS Japan. They then pull rpm figures and such out of a hat and then write a manual for that engine. The only thing OS did was send them an engine in a box and basically say figure it out and make it up??

Anyway, back to the actual subject, there is a problem with some of these engines, I hope hobbico or OS or someone relevant is listening.

Z

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11-23-2006 01:41 AM  11 years agoPost 50
hootowl

rrProfessor

Garnet Valley, Pa.

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I just bought the Boca ecomomy set. $13 See what happens.

Wolves don't lose sleep over the opinions of sheep

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11-23-2006 07:26 AM  11 years agoPost 51
ShempHoward

rrKey Veteran

San Francisco, Ca - too many beggars + bad drivers

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OS sends the engine, instruction manual and decals from Japan in the blue box probably with a spec sheet of some sort although the manuals have most of the specs needed for writing advertising copy. Hobbico might even get involved with helping to write the manuals to get the grammar and syntax correct.

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11-23-2006 09:23 AM  11 years agoPost 52
Zman

rrKey Veteran

Florida

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Super, my manual shows an operating range of 2,000-20,000 rpm. So I certainly havent exceeded any rpm ranges running 1850 head speed. Back to the real discussion.........

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11-24-2006 05:14 PM  11 years agoPost 53
Zman

rrKey Veteran

Florida

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The fact that I sell 5 times more Hyper bearings than any other engine group tells me that the Hyper has a problem! You can't convince me that the Hyper is 5 times more common than the 40-46FX!

Paul Mcintosh
Well Paul, Looks like bax wasnt real thrilled about your post on what % of your sales were for hyper bearings. He deleted all your post. Pretty disappointing, I was really hoping he would at least take you up on your offer to inspect some of the bearings you have that went bad. Tells me he has 0 interest in finding out if there is a problem or not.

Z

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11-24-2006 07:19 PM  11 years agoPost 54
supertigre

rrApprentice

Castle Rock, Colorado

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Perhaps I will just be quiet and continue to profit from the problem rather than trying to find the cause and a cure.

Paul Mcintosh
Owner-CRCustom.com - custom vinyl lettering, banners, signs

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11-24-2006 08:07 PM  11 years agoPost 55
Zman

rrKey Veteran

Florida

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Paul
I asked bax why it was deleted (in case we didnt already know:rolleyes and my post got deleted as well. I guess there will no mention of any facts about how many bearings have been replaced. We all just need to keep quiet about this. I will place my next order with you this week

Mike

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11-24-2006 08:13 PM  11 years agoPost 56
Yug

rrMaster

UK. Herts

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'ello, this old chestnut

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11-25-2006 04:11 PM  11 years agoPost 57
Helijockey

rrKey Veteran

150 miles from somewhere

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Guys I'm suffering the same problem with the os hyper Three hypers so far, today I replaced the bearings in one engine with the ceramic bearings with steel races. I believe webra has a 55 engine, which I'm seriously thinking of trying out. Anyone know how it performs and whether it suffers from similar problems as the hyper?

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12-04-2006 11:35 PM  11 years agoPost 58
B.T.D.T.

rrElite Veteran

NY

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My first Hyper went after about 13 gallons. Bearings, ring and sleeve were replaced under warranty and this time only 5 gallons and rattling again. Should have sent the engine back earlier in the summer while still under warranty. It rattled and then sound went away, now it's always rattling.

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12-27-2006 08:07 PM  11 years agoPost 59
3410253

rrApprentice

TUCSON,AZ

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SAME HERE
out agine

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01-08-2007 03:22 PM  11 years agoPost 60
firefox

rrApprentice

Thailand

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Was a bit skeptical about the seriousness of the Hyper bearing problem until I saw it with my own eyes. A Venture 50 had about two dozen flights on it and was generating way too much noise. The 50 Hyper engine was about the only culprit. After taking a *very* long time to dismantle the engine (the &%^%#@ person who assembled it used tons of red loctite) the bearings were found to be quite notchy, and were replaced.

Now for me, I just switched from a TT 50 on my Titan to a brand new Hyper 50 (and I'm sorely missing the fuel economy of my TT50). I'm still in the run-in phase, only on the first gallon. Running it slightly rich, on Cosmo 15% (the most popular here), flying circuits. Yet it developed very loud high frequency screeching noises. Again, I tracked it down to the engine. Took it apart, and found that yes, the bearings were indeed notchy, both front and back.

I don't know what causes it, but there is indeed something very strange going on.

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HelicopterEngines Plugs Mufflers Fuel › Hobby Services stance on Hyper bearings
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