Fuel/Water, Bearing/Rust

[Vicenterc at comcast.net]

I think the reason is that there are very little chance to get burned fuel in the bearings area in the 4C.  The 2C is more open for combustion gases to blow back and stay there after runing.  If you run the engine with no nitro fuel you will clean al residues of nitro and the chances to form acids would be less.

Vicente
> so why don't the 4stroke guys have problems? they are running much higher
> nitro contents than the two stroke guys (typically)?
> 
> 
> ----- Original Message -----
> From: <vicenterc at comcast.net>
> To: <discussion at nsrca.org>
> Cc: Bob Pastorello <rcaerobob at cox.net>; <discussion at nsrca.org>
> Sent: Saturday, December 06, 2003 4:18 PM
> Subject: Re: Fuel/Water, Bearing/Rust
> 
> 
> > I remember reading the Mintor instructions.  The instructions recommends
> to run the engine with NO nitro if you are not planing to fly again for more
> than a week.  Also, I remember many years ago when I flew in Venezuela with
> NO nitro and we didn't have bearings problems.  Looks like we need to find
> out if Nitro is causing the problems particularly in 2 C engines with large
> pipes.  I think the nitro residues condense and form strong acid that
> attacks the metals.
> >
> > Vicente
> >
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> >
> 
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