Glow plug failures

Wed Nov 12 12:07:57 AKST 2003

Wayne:

I seem to be hearing a lot about bearing problems with Magnum Fuel.  It is
not very prevalent here in the Southeast, but I would sure like to hear from
you guys that use it.  I can't believe that it would be that hard on
bearings...

Tony Stillman
Radio South
3702 N. Pace Blvd.
Pensacola, FL 32505
1-800-962-7802
www.radiosouthrc.com
----- Original Message ----- 
From: "Wayne Galligan" <wgalligan at goodsonacura.com>
To: <discussion at nsrca.org>
Sent: Wednesday, November 12, 2003 1:29 PM
Subject: Re: Glow plug failures

> RULES.......WHAT RULES?   I used to use more then a few drops when I ran
my
> S.T. and  when I stopped using after run the plugs lasted longer.  My OS
> runs just fine on Cool Power.... didn't have bearing problems till I
> switched to Magnum brand.    "New topic"
>
> WAG
>
>
> ----- Original Message ----- 
> From: "Anthony Romano" <anthonyr105 at hotmail.com>
> To: <discussion at nsrca.org>
> Sent: Wednesday, November 12, 2003 1:14 PM
> Subject: RE: Glow plug failures
>
>
> >
> > Rust prevention is part of the reason why I used a little castor in the
> > fuel. Lots left in the garage so won't try all synthetic anytime soon.
The
> > bearings are now Stainless the crank has some light surface rust on it.
> Not
> > too worried about it.
> > Plane is stored with the engine inverted so the plug is soaked in oil
and
> > crud when not in use. I did however just order a RS pro driver.
> > Glad we stopped talking about rules.
> >
> > Anthony
> >
> > >From: Brian Young <b4598070 at yahoo.com>
> > >To: anthonyr105 at hotmail.com
> > >Subject: RE: Glow plug failures
> > >Date: Wed, 12 Nov 2003 11:01:46 -0800 (PST)
> > >
> > >Is the rust on the bearing surfaces? If it has pitted
> > >the surface you might think about replacing, if its
> > >just a light blush or something and it runs
> > >ok.....your call. I cant remember an engine ive had
> > >that didnt rust the bearing cage as well as metal
> > >internal components, just that it didnt rust on the
> > >bearing surfaces so Ive never replaced a part because
> > >it rusted. The engines ive used castor in seemed to
> > >have less rusting problems, especially on the hot
> > >parts.
> > >
> > >Just my $1.00's worth.
> > >
> > >
> > >--- Anthony Romano <anthonyr105 at hotmail.com> wrote:
> > > >
> > > > Bad info there pipe is at 25".
> > > >
> > > > Interesting. Switched from no after run on stock
> > > > bearings, which didn't last
> > > > as long as the plugs, to SS with three of squirts of
> > > > Mobil 1. Usually, had
> > > > to pull the plug and spin the engine before I prime
> > > > for the first start. Now
> > > > using about one squirt of oil.
> > > >   Once you get some rust on the crank and rist pin
> > > > should they be replaced?
> > > >
> > > > Anthony
> > > >
> > > > >From: "Henderson,Eric" <Eric.Henderson at gartner.com>
> > > > >Reply-To: discussion at nsrca.org
> > > > >To: <discussion at nsrca.org>
> > > > >Subject: RE: Glow plug failures
> > > > >Date: Wed, 12 Nov 2003 13:32:51 -0500
> > > > >
> > > > >You might be using too much after-run. I killed
> > > > quite a few plugs that way.
> > > > >Switching to stainless bearings and using only two
> > > > drops of after run (for
> > > > >the crank) stopped killing the center pin. Too much
> > > > compression with the
> > > > >pure oil.
> > > > >
> > > > >Eric.
> > > > >
> > > > >-----Original Message-----
> > > > >From: discussion-request at nsrca.org
> > > > >[mailto:discussion-request at nsrca.org]On Behalf Of
> > > > Anthony Romano
> > > > >Sent: Wednesday, November 12, 2003 1:29 PM
> > > > >To: discussion at nsrca.org
> > > > >Subject: Glow plug failures
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >Have an Os 1.40 that has a pretty healthy appetite
> > > > for glow plugs. First,
> > > > >was blowing the seal so I added a head shim and
> > > > pulled out the pipe a
> > > > >little. Now the just seem to loose conductivity.
> > > > Engine runs fine but go to
> > > > >restart for next flight and nobody home. Typically
> > > > lifespan is about 30
> > > > >flights.
> > > > >Using Type F, S&W 20% nitro 16%syn 2%castor fuel,
> > > > Es pipe at 23" with Mac 2
> > > > >1/"4 header, Apc 16.5 *12W resulting in a peak
> > > > setting around 8100 and a
> > > > >launch setting of 8000. Have another head shim on
> > > > order and will try a
> > > > >little longer pipe if the weather ever improves.
> > > > Any other suggestions?
> > > > >
> > > > >TIA
> > > > >
> > > > >Anthony
> > > > >
> > > >
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