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HomeAircraftHelicopterMain Discussion › need bearings already???
01-16-2009 02:16 AM  9 years agoPost 1
hindsight

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Texas..

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I just about finished breaking in my new os 50 hyper on my vibe 50 today and already I think i need new bearings... I can hear them rattling were as before the engine was quite..... So I am sending it off to hobby services... I see that tower hobbies has these engines on sale for 168.00 plus they are offering a $25 coupon.. That puts the cost of a new engine in the 140's... Now that's an incentive to fly a fifty sized machine.....

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01-16-2009 02:48 AM  9 years agoPost 2
zoomcorvette

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Racine, Wisconsin

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Join the supersaver club and you will get free shipping on orders over $150 and better deals. Currently you get $30 off purchases over $150.

RC anything, its all good.

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01-16-2009 03:44 AM  9 years agoPost 3
bigdog714

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Rochester, MN U.S.A.

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Aren't you going to look before you send it away?

MD 800
Logo 600SE
Logo 14/500 Carbon
Ballistic 700
HD 500V2
Hirobo 50E
Avant 90E

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01-16-2009 03:49 AM  9 years agoPost 4
hindsight

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Texas..

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Sure.... I will open the back plate and look for metal shavings and check for slop but by the sounds of the engine it seems the bearings need to be replaced... Running the engine would just be an auto or worse waiting to happen....

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01-16-2009 07:18 AM  9 years agoPost 5
Gravitysucks

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San Diego, CA

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FWIW, you might want to look at some higher quality bearings than the stock replacements. Those bearings are noted for not lasting long. There are several places that you can buy very high quality stainless steel bearings that won't fail in such a short period of time.

Try Boca Bearings or RC Bearings(I believe is the correct name).

If you do a search you'll come up with a few options.

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01-16-2009 11:55 AM  9 years agoPost 6
Zman

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Florida

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FWIW,

2 years ago when I got my first hyper, I also did the "send to hobby services" thing. Finally, I got tired of turnaround time between shipping and in their possession as well as the "this is the first time we seen this" response. Now I just keep a couple sets on hand, 30 minute job and they last longer than stock bearing. RC Bearings sells a set for less than it cost to ship the engine to HS. Most of time, if you change them as soon as you hear the them, there is no internal damage.

2 cents

Z

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01-16-2009 01:05 PM  9 years agoPost 7
LonR

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Macomb,Mi

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If you dont know how to replace them theres 2 good videos here http://runryder.com/t485911p1/ .

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01-16-2009 02:20 PM  9 years agoPost 8
BJames111

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San Diego, California

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It's really hit or miss I think. I have a hyper with probably 10 to 15 gallons thru it and zero bearing issues.

I find it hard to believe that the bearings are going after only a break-in period. Any chance you're being too cautious?

FWIW, I did have one hyper a couple of years ago that went thru two rear bearings in a summer.

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01-16-2009 02:43 PM  9 years agoPost 9
LonR

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Macomb,Mi

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Good info here from MoneyPitVictim http://runryder.com/t484785p1/

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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01-16-2009 03:16 PM  9 years agoPost 10
Gunner

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Richmond, Va. - USA

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I've been flying my hyper for 2 years now without any bearing problems. But I had the same thing happen as MoneyPitVictim with my hyper. I broke it in on an engine stand that my club has. Ran a couple of tanks through it, ran it rich, kept an eye on the head temperature. Then I mounted it in my 50 and just hovered it. After about 5 minutes into a hover, I heard a pop and the engine quit. When I took it out and got ready to take the head off, I noticed that several bolts were loose. Apparently, the bolts loosened thus the head loosened which allowed the engine to lean out and run hot. So now my pre-flight check always includes checking the tightness of the head bolts. They stay tight now and maybe since the engine was new when it happened, they hadn't been tightened well at the factory.

Gunner
Fusion 50, Pantera 50, Tiger 50
Walkera 4F200LM, T-REX 450 SA

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01-16-2009 03:28 PM  9 years agoPost 11
hindsight

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Texas..

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Thanks fella's
I am going to send it off to hobby services and ask that they replace the engine with a new one and then i will install the boca bearings. This engine was run at one and half turns and never lean.. It has about two gallons through it. It did sit for a while with no use in probably what was a damp environment. The bearings are definitely shot.. I am going to try the boca thing.. I already have a spare on the way from tower.. I will put the nice bearings in both.. Thanks guys--- for you input...

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01-16-2009 04:56 PM  9 years agoPost 12
airboss

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OC ,california

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sounds like you may be running too lean looking for that extra power.
lots of guys at our field (ex - electron) are cooking their engines due to tuning too lean, first the bearings then the piston. always the os50. so its likely due to all the electric guys and their first experience with the fuels and tuning.

Urukay HPS3 KSE 700 HPS3

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01-16-2009 05:02 PM  9 years agoPost 13
Swoop

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Newark, DE USA

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I am going to send it off to hobby services and ask that they replace the engine with a new one and then i will install the boca bearings
They will not give you a new engine, they will repair yours.

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01-16-2009 06:45 PM  9 years agoPost 14
Gearhead

rrMaster

Vt

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telling my story again OS,,
back when they were released I was like #4 on RR that reported buying a new Hyper 50,,

I added 3oz of Byrons "Add a Oil" to the first gallon, then 2oz to the 2nd gallon and 1oz to the 3rd gallon (Magnum 20%),,

this Byrons oil is a mix of Castor and Synthetic,, I flew rather easily at a rich setting,, I thought I was going to have the sweetest little engine,, NOT !!

2.6 gallons the rear bearing went bad

Jim
Buzz Buzz Buzz

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01-16-2009 07:58 PM  9 years agoPost 15
hindsight

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Texas..

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ummm
I have been given brand new engines before.. (especially the 50 size) but your right.. They may just repair not replace. I have had them replace engines with brand new in the box ones before.. Scouts honor...

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01-16-2009 08:29 PM  9 years agoPost 16
Swoop

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Newark, DE USA

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I have had them replace engines with brand new in the box ones before.. Scouts honor...
Thats great. Both times I sent mine in, I got the same one back with a list of parts that were replaced.

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01-16-2009 11:31 PM  9 years agoPost 17
BJames111

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San Diego, California

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It did sit for a while with no use in probably what was a damp environment.
not sure why they would replace the engine when you stored it in a "damp environment"

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01-16-2009 11:50 PM  9 years agoPost 18
hindsight

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Texas..

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lol
I will be sure to leave that part out... Its just a guess anyway.. Who knows why these bearings go bad from time to time... And my place in the winter (I recently moved to a warm climate area....Yea!!!!) is always on the damp side..
I flew the 90 3d again today... Man its nice to have the weather like this.....

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01-17-2009 01:13 AM  9 years agoPost 19
WJackson

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Smyrna, Delaware

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Sitting, that is the biggest killer of stock OS bearings. They sit, they pit. Then its downhill from there.

RIP Roman
Bill Jackson
AlignUSA

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01-17-2009 01:19 AM  9 years agoPost 20
LonR

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Macomb,Mi

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I run a 1/8 of a tank of fuel through my motor every other week during winter just like I do my car to keep everything oiled and moving so I should be good .

600LE,OS55,OS PowerBoost pipe,Align 610's,Spartan

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