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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › OS50 HYPER w/RUSTY BEARING
02-04-2008 05:03 PM  10 years agoPost 1
harrier8131

rrNovice

hong kong

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Damn sad, frustrated and angry with OS-engine company. Bought a OS50Hyper about 2months ago. Today, engine jam, and I opened up the engine and found bearing broken with damn rusty bearing inside.

Just shock to find OS Engine japan selling such a product to consumer. Already wrote to Os-engine, but to NO avail. It seems like my email fell on deaf-ears.

Can someone advise what I can do???? Pls help.
Thank you.

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02-04-2008 05:09 PM  10 years agoPost 2
Bobwho52

rrApprentice

Phoenix Arizona

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Replace the bearing. Make sure that at the end of flying you burn all the fuel out of the motor with fuel off and igniter on.The bearings can rust over night if not. A by-product of nitro fuel evaporating is water.

A transplant saved my life. Sign your donors card today

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02-04-2008 05:10 PM  10 years agoPost 3
harrier8131

rrNovice

hong kong

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I typo about engine jam today, already 3 days. Today just couldnt hold back myself anymore. Very angry and frustrated.
Need to release somewhere. I hope Os engine is watching this thread.

To those who intend to buy OS engine / Align engine, i beg you to re-consider otherwise you might end up with a rusty engine. Also with no one to hear your problem. Ignorance customer service. 1 word, LOUSY customer service.

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02-04-2008 05:12 PM  10 years agoPost 4
BarracudaHockey

rrMaster

Jacksonville FL

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Actually in the US we get excellent support from Hobby Services, the North American service center.

Andy
AMA 77227
http://www.jaxrc.com

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02-04-2008 05:14 PM  10 years agoPost 5
MartyH

rrProfessor

USA

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If you are saying you have never run the engine, thats terrible luck. If you have been running it I dont see how you ask OS to fix it for you. If you have been running it try switching to Wildcat brand fuel. Because of the the type of Nitromethane they use, there are no corrosive byproducts from combustion so you never need afterrun oil. I have never ever had a rusty bearing problem and I am running 6 OS heli engines. Now, with all that said, if changing a bearing is THAT big of an issue for you, you might be in the wrong hobby. One way or another, some time or the other, you will need to tear an engine down. And, lets be honest, it isn't that involved, doesnt take too much time and though life isn't perfect, this isn't the end of the world. Sure, I wish you didnt have to do this but man, go buy that $12 bearing and get on with it. If this is the biggest problem you ever have with a heli, be happy!

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02-04-2008 05:14 PM  10 years agoPost 6
captb

rrApprentice

Arizona Desert

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It doesn't matter what engine or even stainless bearings once they sit with fuel and exhaust fumes they start rusting, very common problem. Just heat it in a oven 250 for about 10 min and hit the back on a piece of wood it will pop out then install a new one (heat and drop in (get spares unless you flush engine and oil if not running on a reg basis) you can get them from rc-bearings.com

If it's gonna happen it'll happen up there!

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02-04-2008 05:17 PM  10 years agoPost 7
harrier8131

rrNovice

hong kong

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Thanks BOBWHO52 for your valuable advice.
I have 6 OSengine (plane & heli engine ranging from 46LA to 60SX), but none of my engine bought new with RUSTY bearing inside. Of course as a result my engine jammed. Then piston and piston ring also bye bye. You can imagine what happen right, luckily manage to save my heli, only minor crash. VERY ANGRY

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02-04-2008 05:24 PM  10 years agoPost 8
harrier8131

rrNovice

hong kong

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Dear MartH

Is not the problem of changing the bearing nor the $12 cost of a bearing. Is the product itself. I bought this os engine NEW. I run-in 2 gallon of cool-power. And now i am trying to tuned perfect this engine BUT it break down on me. So you tell me should I put it somewhere to show them what a LOUSY product they selling (OS ENGINE)

thanks everyone for your input, cheers

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02-04-2008 05:26 PM  10 years agoPost 9
harrier8131

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hong kong

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Just to show you guys, one of the bearing inside break into 2 pieces

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02-04-2008 05:27 PM  10 years agoPost 10
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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Rusty bearing from running the engine is nothing new. Sometines a bearing lasts and lasts, sometimes only a couple of gallons. Some people never have to change a bearing, others are doing it regularly. There seems to be no pattern as to who or why.

http://www.neogl.com has the front and back as a pair made by NTN for $6.99.

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02-04-2008 05:47 PM  10 years agoPost 11
helibird

rrKey Veteran

St. George, UT

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2 gallons does sound a little short for a bearing to go. I've replaced several seems like every 5 or 6 gallons on my current engine. Others lasted 100's of flights without a problem.

Just curious but didn't your engine sound strange? I can deffinately hear when mine are starting to go. If you ignore that sound and run it until the bearing actually came apart then you damage the engine. Funny thing is I've tried the boca stainless once and it didn't last more then 4 gallons either. I've been using some cheap ones from the local bearing shop ($5) and they seem to be going ok.

I've been wanting to try some from vxb.com, they sell a ceramic for pretty cheap.

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02-04-2008 05:53 PM  10 years agoPost 12
helidoc2

rrApprentice

so.cal

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its common....i replaced with the vxb bearings and had nothing but great luck...no need to spend a fortune on bearings.

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02-04-2008 05:56 PM  10 years agoPost 13
Yug

rrMaster

UK. Herts

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I've had brand new engines with very rusted bearings. You just have to accept that this occasionally happens. Bearings usually need replacing sooner rather than later anyway

Vegetable rights and Peace

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02-04-2008 06:24 PM  10 years agoPost 14
SteveH

rrProfessor

Texas

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The guys over on the engine forum say that bearing failures ARE NOT caused by rust, and now you guys are saying it IS caused by rust???? Go figure......

In case you don't understand, a little bit of sarcasm. (Get it?)

The government cannot give you anything without first taking it from someone else.

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02-04-2008 06:26 PM  10 years agoPost 15
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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No what I said is that a rusty bearing is nothing new to the hyper 50. But after a bearing starts to rust if you don't change it then bits are going to flake off and pass through the engine and possibly cause a total failure of the engine.

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02-04-2008 07:14 PM  10 years agoPost 16
legoman67

rrElite Veteran

Nanoose Bay B.C, Canada

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os and ys are the 2 companys that have monoplized the rc engine industry, and becuase ys are sometimes hard to get the only real option is os, i think you just had bad luck, i have 4 os engines and they are are excellent.

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02-04-2008 07:47 PM  10 years agoPost 17
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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In case you don't understand, a little bit of sarcasm
Where, which bit was sarcastic?
SteveH
Magnum Fuel
Guys where I fly like making smoke but your fuel is no better than anyone elses. They still have bearings crap out after 4 to 5 gallons. Go figure......

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02-04-2008 07:50 PM  10 years agoPost 18
cdrking

rrElite Veteran

Seattle

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If you have been running it try switching to Wildcat brand fuel. Because of the the type of Nitromethane they use, there are no corrosive byproducts from combustion so you never need afterrun oil.
That's a mighty big claim. I ran Wildcat and still had rusty bearings.

Jeff

To hover is divine, the alternative is rather PLANE.

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02-04-2008 08:13 PM  10 years agoPost 19
SteveH

rrProfessor

Texas

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Guys where I fly like making smoke but your fuel is no better than anyone elses. They still have bearings crap out after 4 to 5 gallons. Go figure......
It's not the fuel. As you have already figured out, the bearings will rust eventually no matter what fuel you run...that is, no matter what methanol based fuel you run.

It's a combination of the quality of the bearings, how you take care of the engine after you run it, and the atmosphere where you store the engine.

The government cannot give you anything without first taking it from someone else.

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02-04-2008 08:48 PM  10 years agoPost 20
Andy from Sandy

rrElite Veteran

Bedfordshire, UK

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This is a well worn path isn't it? It would appear that no manufacturer regardless of cost is able to make any claim to the longevity of their bearings for this application.

Actually I know about the fuel. We have most brands being used and as already stated no rhyme nor reason why someones bearings last and others don't, but it is a phenomena peculiar to these small OS engines.

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