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Message
Hi Mike,
Considering total investment, I agree $400 - for a
reliable ignition system is not out of line. Besides the stock Mazda
ignition must weigh close to 10 lbs total for trailing and leading modules
- so save some weight besides.
While I am unaware of anybody suffering a mishap from SAG
- as Lynn points out reducing power, reduces compression chamber pressure,
reduces misfire - but, it can certainly be disconcerting - and perhaps lead you
to incorrect conclusions about what is wrong. I know I spent hours when
first encountering SAG wondering what was wrong with my injectors - of course,
it wasn't the injectors it was the plugs.
Guess, I'm going to have to break down and install the LS1
components I have in the workshop. Don't know if the LS1 coils will
provide any better anti-fouling spark than stock but at least then I could plug
in the LS1 Blaster coils.
Ed
----- Original Message -----
Sent: Saturday, June 09, 2007 11:15
PM
Subject: [FlyRotary] Re: Spark Plug
Cleaning
I
wouldn't consider NOT having a high energy ignition system over changing
plugs. I'm sure that SAG is result from the combination of the coil and plugs
used. It's cheap insurance. Why risk it? Mike LaFleur
-----
Original Message ---- From: Ed Anderson < eanderson@carolina.rr.com> To:
Rotary motors in aircraft < flyrotary@lancaironline.net> Sent:
Saturday, June 9, 2007 8:09:38 AM Subject: [FlyRotary] Re: Spark Plug
Cleaning
Hi Bobby, based on what Lynn has said and my
understanding of what is happening with lead fouling, I agree. However,
while they produce 3 times the energy they also cost about 3 times as much as
a stock LS1 coil - these Blaster coils cost $98.56 each. Which
would bring 4 to around $400.00.
Spark plugs cost around $7.00 x4 = $28 for a set $400/28
= 14 changes of plugs X 25 (avg hours) = 357 hours of flying with current
system before cost of plugs = cost of Blaster LS1 coils {:>)
However, if I were just now starting out with a rotary
conversion, I would certainly consider it. I do have a complete
installation of regular LS1 coils and connectors sitting in my
workshop. Just need to get them installed and the EC2 converted -
I'll have to check, but I presume these LS1 coils are a plug-plug replacement,
which would mean they would be easy to exchange for the stock LS1
coils.
Now that I think further about it, the piece of mind
from not encountering SAG might well be worth the price alone! Good
suggestion!
Ed
-----
Original Message -----
Sent:
Friday, June 08, 2007 10:19 PM
Subject:
[FlyRotary] Re: Spark Plug Cleaning
Ed,
I wish you would test 4 of these. :) If Lynn is
correct about high power spark then these might be the ultimate
solution. Looks like 3 time the energy of our standard LS1 coils.
Bobby
Here is somebody who pretty much sums up what my
research has turned up on Lead solvents - the only one I found was nitric
acid - which I will pass on {:>)
.
There really is no lead solvent. Any chemical that will
desolve lead will likely disolve YOU. Years ago, before people knew better,
shooters used mercury. This amalgamated with the lead, and the material
could be brushed out. The only problem: mercurey will make you crazy, then
dead!!
A good non dangerous to you, and non damaging to the bore
cleaner is the Lewis or Hopies lead remover kit. You can also buy a "lead
remover cloth" at most gun shops. Cut this into patches and run them down
the bore.
Ed
-----
Original Message -----
Sent:
Friday, June 08, 2007 8:47 PM
Subject:
[FlyRotary] Re: Spark Plug Cleaning
Ed,
Jeff Owen
Getting around to see what can be done about the
lead fouling sparkplugs causing the infamous "SAG". 1st
experiment was to place the used spark plugs in a 30% solution of
Hydrogen Peroxide. I did that and place the plugs and solution in
an ultrasonic cleaner, turned it on and left it on for 1
hour.
It appeared to clean everything off the plug -
but, the lead. So far the only chemical my research has indicated
would dissolved metallic lead is Nitric Acid. Nope, not going to
try that, I'll stick with buying new plugs.
But, thought I would let folks know of the
results. I was really hoping the ultrasonic vibration would shake
the lead crystals off the ceramic cone of the plug - but either the idea
is flawed or the small jewelry cleaning size ultrasonic generator is
simply not powerful enough.
Ed
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