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Date: Mon, 13 Nov 2006 12:19:34 -0500
From: Ernest Christley <echristley@nc.rr.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Cleaning spark plugs
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Ed Anderson wrote:

> In flight, the only thing that seems to work, is to reduce power.  
> This reduces pressures in the combustion chamber making it easier for 
> the spark to jump the gap rather than follow a carbon/lead track on 
> the ceramic. After a few minutes of reduced power, you can frequently 
> run it back at higher power settings (for a while).  So running at 
> reduce power settings apparently "blows" some of the stuff off the 
> ceramic.
>

We were discussing ways of  cleaning the plugs a while back, but just 
recently Lynn related to us how to clean out the combustion chamber 
using a cup of water.  I wouldn't want to stand next to a prop, pouring 
water in the carbeurator of a nearly choking engine, but would it be a 
worthwhile experiment to hook a miniature garden sprayer to the intake?  
Would it be likely to clean out a SAGged plug?

-- 
         ,|"|"|,              Ernest Christley       |
----===<{{(oQo)}}>===----    Dyke Delta Builder      |
        o|  d  |o        http://ernest.isa-geek.org  |