Cool Power

[Joe Lachowski]

SS bearings for the Webra just don't exist. Anyone willing to front the 
money to have several thousand custom made?<g>

I've had varied success on the Webra bearings . Anywhere from a few dozen to 
around 100 flights or so. I put just a little Mobil 1 in after each day. If 
you put too much in you wind up removing the plug and blowing the oil out 
with the starter the next time you fly.


>From: "Ed Alt" <Ed_Alt at hotmail.com>
>Reply-To: discussion at nsrca.org
>To: <discussion at nsrca.org>
>Subject: Re: Cool Power
>Date: Thu, 10 Jun 2004 17:48:40 -0400
>
>Does anyone know if these sealed bearings are available for the Webra 1.60?
>
>Thanks
>Ed
>----- Original Message -----
>From: <gene.maurice at comcast.net>
>To: <discussion at nsrca.org>
>Cc: "Brian Young" <b4598070 at yahoo.com>; <discussion at nsrca.org>
>Sent: Thursday, June 10, 2004 12:06 PM
>Subject: Re: Cool Power
>
>
> > I have been using sealed SS bearings in a couple of OS 160's with great
>success. The first engine went through open carbon steel bearings in less
>than 30 flights (2 sets). Information that I got from a bearing supplier, 
>is
>that the grease used in the bearings is rated for the temperature rating of
>the bearing. Generally speaking, carbon steel is rated at about 250 deg. F
>and SS is about 350 deg. F. So, in addition to getting the corrosion
>resistance, SS handles a greater heat range.
> >
> > The first 160 has approx. 200 - 250 flights and over a year on the 
>sealed
>SS bearings and they are still smooth and tight. On the second motor I
>changed the stock bearings out for the sealed SS right after breaking the
>engine in. It now has about 120 flights in about 7 months.
> >
> > Sealed bearings are designed to be "water tight" and the grease should 
>not
>"wash" out.  The seals will eventually wear down and allow fuel to enter 
>the
>bearing but considering that the oil in the fuel should actually be
>lubricating the bearing to seal contact point I would imagine this break
>down will take some time.
> >
> >
> >
> > --
> > Gene Maurice
> > AMA 3408 NSRCA 877
> > Plano, TX
> > gene.maurice at comcast.net
> >
> >
> > > Nat, this is a sealed and greased bearing then right?
> > > I was wondering about trying this in my Webra, is it a
> > > high temp grease and seal compound?
> > >
> > > I figured the grease would eventually wash out but I
> > > dont recall getting 300 flights on a bearing yet.
> > >
> > > --- Nat Penton <natpenton at centurytel.net> wrote:
> > > > I'm around 300 flights on the 91FX with the sealed
> > > > bearings from Boca. Don't run dry and no afterrun
> > > > oil and tickled pink.Bearings still feel great. 30%
> > > > nitro, good crankcase ventilation.           Nat
> > > > Penton
> > > >   ----- Original Message -----
> > > >   From: Dave Smith
> > > >   To: discussion at nsrca.org
> > > >   Sent: Wednesday, June 09, 2004 3:42 PM
> > > >   Subject: Cool Power
> > > >
> > > >
> > > >   I received my first batch of Cool Power with the
> > > > new label on it.
> > > >   This label says in bold letters,"DO NOT USE AFTER
> > > > RUN OILS".
> > > >
> > > >   Any comments on this??
> > > >
> > > >   Dave
> > >
> > >
> > >
> > >
> > >
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