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HelicopterOff Topics › This really sucks
09-07-2009 02:56 AM  8 years agoPost 1
LonR

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Macomb,Mi

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I bought a new O.S 50 hyper 10 days ago and sold my good running O.S 50 Hyper the same day.2-3 days after I put the motor in she started making this funny noise like the fan shroud was rubbing on the fan.I adjusted the fan shroud 2 days ago and the noise was still there.Went to the club today,started the heli and when I started spooling up a few people said my rear bearing in my motor was bad.Thats the last thing I thought about cause the motor is new,main needle is allmost 1 3/4 turns out and no air leaks.I landed after 2 mins,took the motor apart while I was there and sure enough the freaking rear bearing is taking a crap .Now I wish I kept my old Hyper cause she ran strong as hell even with 30+ gallons through it but no my dumb azz had to sale it .O-well,I ordered a set of BocaBearing and hope there here by the weekend cause our club funfly is Sunday the 27th.The motor didn't make the normal marble sound,its more of a hum.You can hear it in this video .

Watch at YouTube

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

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09-07-2009 03:01 AM  8 years agoPost 2
FlaG8r

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Florida

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Not enough answers here?

http://www.runryder.com/helicopter/t538954p1/

Life is tough, it's tougher if you're stupid

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09-07-2009 03:16 AM  8 years agoPost 3
GREYEAGLE

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Flat Land's

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What type of fan ??

Did you balance or check the runout of the fan during install ???

A out of round or out of balance condition will easily beat out the bearing races.

Since the motor is only 10 day's old, Hobby Services should swap or service it out, or can you take to the shop you purchased it from ??

greyeagle

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09-07-2009 03:59 AM  8 years agoPost 4
LonR

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Macomb,Mi

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FlaG8r,
Nope,thought I knew what it was but I guessed wrong .

GREYEAGLE,
I bought it from a buddy and the motor is new,he only ran 1 gallon through it for break in.I talked to him today and he never put after run oil in the motor when he stored it for a few months,I know I never would of guessed to put any in it too cause its new.He built a Trex 600 for his kid but his kid never flew it after he broke the motor in.He pulled the hyper 50 out and put a big block in the Trex 600.I don't want anyone to think im mad at him or anything cause crap happend,im just bummed it happend before our funfly.I have a Align CNC fan and its not that cause I ran about 5 gallons or so through my old Hyper with no problems.The bearing has rust on it so this should be a good example to everyone to use after run oil if you store your heli or motors,even if there new cause the bearing will rust.

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

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09-07-2009 04:01 AM  8 years agoPost 5
FlaG8r

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Florida

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FWIW, I don't hear anything wrong in the video... also have you tried idling on the bench and moving the head/ main shaft left and right? If you hear the rattle it is probably your fan. Also, did you check for run out on the fan?

Life is tough, it's tougher if you're stupid

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09-07-2009 04:03 AM  8 years agoPost 6
LonR

rrElite Veteran

Macomb,Mi

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I took the motor apart at the club and its for sure the rear bearing.

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

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