RunRyder RC
 7  Topic Subscribe
WATCH
 2 pages [ <<    <     1     ( 2 )    >    >> ] 1277 views POST REPLY
HomeAircraftHelicopterMain Discussion › need bearings already???
01-17-2009 01:22 AM  9 years agoPost 21
Yug

rrMaster

UK. Herts

My Posts: All  Forum  Topic

Very true.
It's a simple job to replace bearings. The only tricky bit is getting perfect alignment on reinstalling the engine as well as getting the new bearings perfectly aligned. Other than that, in my experience, there tend to be inconsistencies in materials used in bearing construction as some bearings only last a few gallons while others will last 300 or more flights on the optimum power band.

Vegetable rights and Peace

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 01:23 AM  9 years agoPost 22
WJackson

rrElite Veteran

Smyrna, Delaware

My Posts: All  Forum  Topic

BTW- nice to have ya back Yug!

RIP Roman
Bill Jackson
AlignUSA

PM  EMAIL  HOMEPAGE  GALLERY  Attn:RR  Quote
01-17-2009 01:27 AM  9 years agoPost 23
Yug

rrMaster

UK. Herts

My Posts: All  Forum  Topic

Cheers, but I'm only half back

Vegetable rights and Peace

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 03:50 AM  9 years agoPost 24
Dr.Ben

rrMaster

Richmond, VA, USA

My Posts: All  Forum  Topic

You could have put ONE tank through the engine, let it sit in a damp environment without some sort of preservative oil, and it would have likely ruined the bearings. Higher quality bearings are no less sensitive to this treatment. Learn from this experience, or you'll be repeating this process frequently. Guaranteed.

Ben Minor

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 04:44 AM  9 years agoPost 25
The Dude II

rrVeteran

IN - USA

My Posts: All  Forum  Topic

Show of hands....those of you that posted.
How many of you balance the hub/fan/clutch assembly before mating to the frame?

How many are checking that the run-out is at .001" to .003"?

Curious, because my first machines I didn't know about either of these procedures till someone with more experience pointed it out.

My first Hyper 50 lasted a season (15 gallons maybe) before the rear bearing went. That was before I balanced and dial-indicated.

Replaced bearings, balanced and dial-indicated that engine and flew another season (30+ gallons) problem free.

Now on my second Hyper 50...30+ gallons through it...flawless operation.

All CY 30%.

lotta ins, lotta outs

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 12:12 PM  9 years agoPost 26
hindsight

rrVeteran

Texas..

My Posts: All  Forum  Topic

not using a dail indicator...No
does anyone have trouble with the ys bearings going bad.???? Maybe OS should look into this matter...Maybe they should learn from this process????

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 01:13 PM  9 years agoPost 27
Swoop

rrElite Veteran

Newark, DE USA

My Posts: All  Forum  Topic

How many of you balance the hub/fan/clutch assembly before mating to the frame?

How many are checking that the run-out is at .001" to .003"?
Balanced the fan and clutch but did not dial indicate. In my case, I'm pretty sure the failures were related to storing my heli in a damp garage throughout the summer. Keeping it inside now, we will see how that goes....

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 02:44 PM  9 years agoPost 28
Dilbeck

rrElite Veteran

Springdale Arkansas

My Posts: All  Forum  Topic

Post after post, Thread after thread I hear of these OS 50 bearing failures. I keep checking mine from time to time for fear of damage due to all the reported problems, Yet 10 gallons later and the engine looks as good as new. Must be my sport/scale flying using only 20% nitro or never running hot or over reviving the engine. Not sure but I've knocked on wood each time I've checked it.

Clint

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 04:49 PM  9 years agoPost 29
Swoop

rrElite Veteran

Newark, DE USA

My Posts: All  Forum  Topic

You've been lucky, but its just a matter of time.

PM  EMAIL  GALLERY  Attn:RR  Quote
01-17-2009 06:01 PM  9 years agoPost 30
canbarelyhover

rrVeteran

Sunnyvale, CA

My Posts: All  Forum  Topic

i'm a nitro noob so i have abused my os50hyper in everyway possible. overreved it (2300 headspeed on 8.73 ratio for entire flights), ran hot, ran lean, several flameouts, even blew a piston. the original rear bearing still runs smooth. on 10th gallon.

PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 2 pages [ <<    <     1     ( 2 )    >    >> ] 1277 views POST REPLY
HomeAircraftHelicopterMain Discussion › need bearings already???
 Print TOPIC  Make Suggestion 

 7  Topic Subscribe

Sunday, June 24 - 5:52 pm - Copyright © 2000-2018 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online