X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost05.isp.att.net ([207.115.11.55] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 6011099 for flyrotary@lancaironline.net; Mon, 14 Jan 2013 08:55:21 -0500 Received-SPF: none receiver=logan.com; client-ip=207.115.11.55; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-98-85-189-34.mco.bellsouth.net[98.85.189.34]) by isp.att.net (frfwmhc05) with SMTP id <20130114135444H05008q12re>; Mon, 14 Jan 2013 13:54:44 +0000 X-Originating-IP: [98.85.189.34] From: "Bill Bradburry" To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: Hiccup Date: Mon, 14 Jan 2013 08:54:45 -0500 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000C_01CDF234.CDA05370" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6002.18463 Thread-Index: Ac3yWJ92SWOfbVavSjmh72Oxu9WPCQABf7Jw This is a multi-part message in MIME format. ------=_NextPart_000_000C_01CDF234.CDA05370 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit I just ordered the 8.5mm size. Bill _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Sent: Monday, January 14, 2013 8:10 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup You will have a difficult time working with the normal boots for the connectors if you go 10mm. I don't know if they make special boots for that size. Tracy Sent from my iPad On Jan 13, 2013, at 7:46 PM, John Slade wrote: Sorry, Bill. I don't remember. I'll guess at the 8mm. They don't seem unusually thick. John On 1/13/2013 12:47 PM, Bill Bradburry wrote: Ed and John, Do you guys have the 8.5 or the 10 MM thickness? Does it matter? Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Sunday, January 13, 2013 7:14 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup I agree with, John. I had Magnacore make custom wires for my rotary - cost me around $45 back then. Have flow for close to 10 years now with the wires with no problem. I also had the boots in two different colors, one color for leading and one for trailing. Ed From: John Slade Sent: Saturday, January 12, 2013 7:31 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup I'd recommend paying the $85. My magnacore custom made plug leads haven't given me a problem in 8 years. Any way you can eliminate one possible cause is worth it. One nice thing about Magnacore is that they will make them to specified length with pre-installed connectors. I got mine in 2 colors. Red for leading, Black for trailing. On 1/12/2013 3:18 PM, Bill Bradburry wrote: The Magnacore wires are fairly pricey, about $85 for the RX-8. Not that I am cheap or anything, but does anyone have a more economical source?? Bill B _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Steven W. Boese Sent: Saturday, January 12, 2013 1:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup I had an aftermarket tachometer on my engine test stand that would often read twice the actual rpm. The engine stand was set up so that the power to each of the four ignition coils could be controlled independently. The spark plug wires were Mazda OEM. The behavior of the tach would sometimes be affected by the combination of ignition coils that were active. In the course of troubleshooting, it was found that the tach would consistently read twice the actual RPM when its input wire was completely disconnected at the tach. It was concluded that the tach was responding to signals emitted by the spark plug wires and the doubled rpm indication was due to triggering by the ignition signals from both rotors. Replacing the Mazda spark plug wires with Magnecore wires from the installation in my plane cured the tach errors. Now, however, checking the ignition timing with an inductive timing light pickup on these wires was difficult whereas it was not a problem with the original wires. It should be noted that the EC2 on the engine stand never gave any indication of having problems when either set of spark plug wires was installed in spite of being physically located closer to the coils and spark plug wires relative to the tach. Steve Boese RV6A, 1986 13B NA, RD1A, EC2 _____ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of Dale_R [dale.rog@gmail.com] Sent: Saturday, January 12, 2013 8:04 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Hiccup Dunno how many people here remember when spark wire was just that: wire. But it was electrically noisy. So it got replaced by carbon impregnated fabric, which has rather high resistance (a cheap way to damp the "noise"). Another way to suppress the "noise" is to wrap the wire (many turns, closely spaced) around an insulating core, which creates an inductive impedance, which accomplishes the same goal but readily passes spark current. AFAIK, "MAGNECORE" was the first to explore this method, but several companies offer a similar product now. According to some sources, the core material can make a large difference in the inductive effectiveness. Therefore, I'd recommend MAGNECORE. -- Best Regards, Dale_R (who has no financial interest in Magnecore) Cozy MKIV #497 On 1/12/2013 7:21 AM, Bill Bradburry wrote: Anybody have a recommendation for ignition wires for the Renesis? I have the original Mazda wires. I checked them out yesterday and they seemed fine, but I am still considering replacing them to see if it helps. Bill B No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2890 / Virus Database: 2637/6025 - Release Date: 01/11/13 ------=_NextPart_000_000C_01CDF234.CDA05370 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I just ordered the 8.5mm = size.

 

Bill

 

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy
Sent: Monday, January 14, = 2013 8:10 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: = Hiccup

 

You will have a difficult time working with = the normal boots for the connectors if you go 10mm. =  

I don't know if they make special boots for = that size.

 

Tracy
=
Sent from my iPad


On Jan 13, 2013, at 7:46 PM, John Slade <jslade@canardaviation.com&g= t; wrote:

Sorry, Bill.
I don't remember. I'll guess at the 8mm. They don't seem unusually = thick.
John

On 1/13/2013 12:47 PM, Bill Bradburry = wrote:

Ed and John,

 

Do you guys have the 8.5 or the 10 = MM thickness?  Does it = matter?

 

Bill = B

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironlin= e.net] On Behalf Of Ed = Anderson
Sent: Sunday, January 13, = 2013 7:14 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Hiccup

 

I agree with, John.  I had Magnacore make = custom wires for my rotary - cost me around $45 back then.  Have flow for = close to 10 years now with the wires with no problem.    I also = had the boots in two different colors, one color for leading and one for trailing. 

 

Ed

 

From: John Slade =

Sent: Saturday, January 12, 2013 7:31 PM

Subject: [FlyRotary] Re: Hiccup

 

I'd recommend paying the $85.  My = magnacore custom made plug leads haven't given me a problem in 8 years.
Any way you can eliminate one possible cause is worth it. One nice thing = about Magnacore is that they will make them to specified length with = pre-installed connectors. I got mine in 2 colors. Red for leading, Black for = trailing.

On 1/12/2013 3:18 PM, Bill Bradburry = wrote:

The Magnacore wires are fairly = pricey, about $85 for the RX-8.  Not that I am cheap or anything, but does = anyone have a more economical = source??

 

Bill B =

 

From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Steven W. = Boese
Sent: Saturday, January = 12, 2013 1:30 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Hiccup

 

I had an aftermarket tachometer on my engine test = stand that would often read twice the actual rpm.  The engine stand was = set up so that the power to each of the four ignition coils could be controlled independently.  The spark plug wires were Mazda OEM.  The = behavior of the tach would sometimes be affected by the combination of ignition = coils that were active.  In the course of troubleshooting, it was found = that the tach would consistently read twice the actual RPM when its = input wire was completely disconnected at the tach.  It was concluded that the tach was responding to signals emitted by the spark plug wires = and the doubled rpm indication was due to triggering by the = ignition signals from both rotors.  Replacing the Mazda spark plug wires with Magnecore wires from the installation in my plane cured = the tach errors.  Now, however, checking the ignition timing with an = inductive timing light pickup on these wires was difficult whereas it was not = a problem with the original = wires.

 

It should be noted that the EC2 on the engine = stand never gave any indication of having problems when either set of = spark plug wires was installed in spite of being physically located closer to the = coils and spark plug wires relative to the = tach.

 

Steve = Boese

RV6A, 1986 13B NA, RD1A, = EC2

  =

From: Rotary motors in = aircraft [flyrotary@lancaironline.net] on behalf of Dale_R [dale.rog@gmail.com]
Sent: Saturday, January = 12, 2013 8:04 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Hiccup

Dunno how many people here remember when = spark wire was just that: wire.  But it was electrically noisy.  So it = got replaced by carbon impregnated fabric, which has rather high resistance = (a cheap way to damp the "noise").

Another way to suppress the "noise" is to wrap the wire (many = turns, closely spaced) around an insulating core, which creates an inductive impedance, which accomplishes the same goal but readily passes spark current.  AFAIK, "MAGNECORE" was the first to explore = this method, but several companies offer a similar product now.  = According to some sources, the core material can make a large difference in the = inductive effectiveness.  Therefore, I'd recommend
MAGNECORE.
 



-- =

Best =
Regards,
Dale_R (who has no financial interest in =
Magnecore)
<=
font
size=3D2 color=3Dblack face=3D"Courier New">Cozy MKIV =
#497




On 1/12/2013 7:21 AM, Bill Bradburry = wrote:

Anybody have a recommendation for = ignition wires for the Renesis?  I have the original Mazda wires.  I = checked them out yesterday and they seemed fine, but I am still considering = replacing them to see if it helps.

 

Bill = B

 




No virus found in this message.
Checked by AVG - www.avg.com
Version: 2013.0.2890 / Virus Database: 2637/6025 - Release Date: = 01/11/13

 

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