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To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Re: MSD type Ignition CD or not?   was  Re: Spark Plug
 Cleaning
Date: Mon, 11 Jun 2007 15:15:53 -0400
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We used to clean them with a wire brush and Berrymans B12 and get a good bit=
 more life out of them too.



Bob Mears

Supermarine Spitfire




-----Original Message-----
From: wrjjrs@aol.com
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Mon, 11 Jun 2007 1:31 pm
Subject: [FlyRotary] Re: MSD type Ignition CD or not? was Re: Spark Plug Cle=
aning



Pretty good description Ed,=C2=A0
Also look for a darker track from the center electrode to the shell. Of cour=
se if you have tracking you will have fouling shortly afterward.=C2=A0
Bill Jepson=C2=A0
=C2=A0
-----Original Message-----=C2=A0
From: Ed Anderson <eanderson@carolina.rr.com>=C2=A0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>=C2=A0
Sent: Mon, 11 Jun 2007 11:23 am=C2=A0
Subject: [FlyRotary] Re: MSD type Ignition CD or not? was Re: Spark Plug Cle=
aning=C2=A0
=C2=A0
Bob, this is what I have observed. The ceramic will be dark colored - dark c=
harcoal - almost black. But, that would probably look that way with carbon f=
ouling also. But, when I shine a strong light on the ceramic cone, light gli=
tters off of what I believe to be lead crystals - if I am correct then that=20=
could be a sign of lead fouling. In other words, carbon fouling appears to l=
eave a dull charcoal/black color whereas the lead apparently leaves dark met=
allic crystals of some sort. That's the best I can conclude.=C2=A0=C2=A0
=C2=A0=C2=A0
Ed=C2=A0=C2=A0
=C2=A0=C2=A0
=C2=A0
________________________________________________________________________=C2=
=A0
AOL now offers free email to everyone. Find out more about what's free from=20=
AOL at AOL.com.=C2=A0
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Homepage: http://www.flyrotary.com/=C2=A0
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.htm=
l=C2=A0


________________________________________________________________________
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<div>We used to clean them with a wire brush and Berrymans B12 and get a goo=
d bit more life out of them too.</div>


<div>=C2=A0</div>


<div>Bob Mears</div>


<div>Supermarine Spitfire</div>


<div><br>
<br>
<br>
-----Original Message-----<br>
From: wrjjrs@aol.com<br>
To: Rotary motors in aircraft <flyrotary@lancaironline.net><br>
Sent: Mon, 11 Jun 2007 1:31 pm<br>
Subject: [FlyRotary] Re: MSD type Ignition CD or not? was Re: Spark Plug Cle=
aning<br>
<br>
</div>


<div id=3DAOLMsgPart_0_7f530538-c90b-47ec-b1bb-2dc6340a0d8c style=3D"FONT-SI=
ZE: 12px; MARGIN: 0px; COLOR: #000; FONT-FAMILY: Tahoma, Verdana, Arial, San=
s-Serif; BACKGROUND-COLOR: #fff">Pretty good description Ed,=C2=A0<br>
Also look for a darker track from the center electrode to the shell. Of cour=
se if you have tracking you will have fouling shortly afterward.=C2=A0<br>
Bill Jepson=C2=A0<br>
=C2=A0<br>
-----Original Message-----=C2=A0<br>
From: Ed Anderson <<A href=3D"mailto:eanderson@carolina.rr.com">eanderson@ca=
rolina.rr.com</A>&gt;=C2=A0<br>
To: Rotary motors in aircraft <<A href=3D"mailto:flyrotary@lancaironline.net=
">flyrotary@lancaironline.net</A>&gt;=C2=A0<br>
Sent: Mon, 11 Jun 2007 11:23 am=C2=A0<br>
Subject: [FlyRotary] Re: MSD type Ignition CD or not? was Re: Spark Plug Cle=
aning=C2=A0<br>
=C2=A0<br>
Bob, this is what I have observed. The ceramic will be dark colored - dark c=
harcoal - almost black. But, that would probably look that way with carbon f=
ouling also. But, when I shine a strong light on the ceramic cone, light gli=
tters off of what I believe to be lead crystals - if I am correct then that=20=
could be a sign of lead fouling. In other words, carbon fouling appears to l=
eave a dull charcoal/black color whereas the lead apparently leaves dark met=
allic crystals of some sort. That's the best I can conclude.=C2=A0=C2=A0<br>
=C2=A0=C2=A0<br>
Ed=C2=A0=C2=A0<br>
=C2=A0=C2=A0<br>
=C2=A0<br>
________________________________________________________________________=C2=
=A0<br>
AOL now offers free email to everyone. Find out more about what's free from=20=
AOL at AOL.com.=C2=A0<br>
=3D0=C2=A0<br>
=C2=A0<br>
--=C2=A0<br>
Homepage: <A href=3D"http://www.flyrotary.com/" target=3D_blank>http://www.f=
lyrotary.com/</A>=C2=A0<br>
Archive and UnSub: <A href=3D"http://mail.lancaironline.net:81/lists/flyrota=
ry/List.html" target=3D_blank>http://mail.lancaironline.net:81/lists/flyrota=
ry/List.html</A>=C2=A0<br>
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