Another bearing question....

[Wayne Galligan]

My OS will do the loading up in the midrange and die thing.  It has happened
on the last two bearings thus giving me the warning.  Then of course I could
verify the end play at the tips of the prop. Funny thing was I couldn't feel
any roughness.  But after a fresh bearing it ran fine.

Wayne

----- Original Message ----- 
From: "White, Chris" <chris at ssd.fsi.com>
To: <discussion at nsrca.org>
Sent: Wednesday, October 22, 2003 2:55 PM
Subject: RE: Another bearing question....


> Thanks Wayne.... The first 2 I would expect, the 3rd is new to me, and the
> fourth....well that kind of says why we care....:)
> Chris
>
> -----Original Message-----
> From: Wayne Galligan [mailto:wgalligan at goodsonacura.com]
> Sent: Wednesday, October 22, 2003 2:47 PM
> To: discussion at nsrca.org
> Subject: Re: Another bearing question....
>
>
> If you rock the spinner back and forth and it is not smooth or you feel
> roughness.....bad bearing.   If you grab the prop by the tips and wiggle
it
> back and forth and there is end play.... bad bearing.  If you experience
> sudden changes in the midrange like loading up and engine quits on spool
up
> and plug is OK....possible bad bearing.
>
> Or if you see metal filings coming out the exhaust....... TOO LATE bad
> bearing and engine.
>
> Wayne G.
> ----- Original Message ----- 
> From: "White, Chris" <chris at ssd.fsi.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, October 22, 2003 2:32 PM
> Subject: Another bearing question....
>
>
> > Hi!
> > I hear of guys getting anywhere from 35 to 400 flights on bearings:
> >
> > What are the first signs of bearing problems. Since starting
Intermediate
> > practice in July, I have just got into flying the same airplane/engine
> > regularly enough to wear on an engine and tell the difference in
> > performance.  I have 97 flights on a Zen/Webra 145AAR combination. I use
> > Cool Power 15% and after run oil religiously.  I have a  tach which
varies
> > so much with light emissions that I deem it as unreliable.  So what do
you
> > look for?
> >
> >
> > Thanks, Chris
> >
> > -----Original Message-----
> > From: gene.maurice at comcast.net [mailto:gene.maurice at comcast.net]
> > Sent: Wednesday, October 22, 2003 2:07 PM
> > To: discussion at nsrca.org
> > Subject: RE: bearing question
> >
> >
> > Try WWW.AFCBEARING.COM. Great prices and so far a good product. They
carry
> > all of the standard sizes, but some of them have to be shipped from
Japan.
> I
> > am using their sealed SS bearing in my OS 160 with the seals and grease
> > intact. 120 flights (+-) without a problem. And I am using crank
pressure
> to
> > power a Perry pump. This is after going through 2 sets of carbon steel
> > bearings after less than 35 flights each.
> >
> > --
> > Gene Maurice
> > AMA 3408 NSRCA 877
> > Plano, TX
> > gene.maurice at comcast.net
> >
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> >
>
>
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>


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