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There is all this discussion about other ignitions and other methods to keep the plugs fresh. Would I be out of line if I just suggested that we change them more often? You can change a lot of standard plugs for the price of most ignition upgrades. I would also like to mention that Kawasaki did a check on various types of plug cleaning. Their conclusion was that there was no economical way to clean plugs that worked. They did some chemical cleans that worked, but cost more overall than new plugs! My guess is that modern eco activism being what it is in California I probably couldn't buy the stuff anyway.
Bill Jepson
-----Original Message-----
From: Ernest Christley <echristley@nc.rr.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, 11 Jun 2007 6:37 am
Subject: [FlyRotary] Re: Spark Plug Cleaning
Michael LaFleur wrote:
Sure. How much do you spend building an airplane? $400 is what, 1/2% or so?
You guys and your fancy kit airplanes...
$400 is more like 2% for some of us.
An extra $400 is keeping you from having a reliable ignition system.
$400 or a proper maintenance schedule will net the same reliability.
Put off buying those ANR headsets and rid yourself the risk of SAG > during climbout or a go-round. We're talking real pucker factor here.
Mike LaFleur
I wouldn't pay $400 for headsets, either; but, that isn't the point. The point is that $400 IS a lot of money, and that is a separate question that whether it is justified or not.
Planes get expensive in the same way they get heavy...one pound at a time...which would be such a profound statement if we were British. System after expensive system is piled on, justified in each case by an obscure what-happens-if scenario. Meanwhile, where we started gives us more performance than the typical 152 most of us did our primary training in. I believe I've read that the training fleet is one of the safest components of the GA fleet. IMNSHO, over the lifetime of the coils, the $400 would be better spend on an extra couple hours of recurrency training with a good instructor.
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