X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTP id 6009730 for flyrotary@lancaironline.net; Sun, 13 Jan 2013 07:14:46 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=fIW7LOme c=1 sm=0 a=g3L/TDsr+eNLfIieSKfGkw==:17 a=AHkS0RJitIMA:10 a=05ChyHeVI94A:10 a=ayC55rCoAAAA:8 a=T-TMxPDQvv4A:10 a=Ia-xEzejAAAA:8 a=pGLkceISAAAA:8 a=oCcaPWc0AAAA:8 a=EuMzbAPq8PHWJt5vqVIA:9 a=wPNLvfGTeEIA:10 a=EzXvWhQp4_cA:10 a=MSl-tDqOz04A:10 a=DhNYot_EEIxkC2ed:21 a=66Kz_wAMM1HU0mdJ:21 a=WrMfpB0aAAAA:8 a=4PR2P7QzAAAA:8 a=EgfMNeLW4VyB6U4GVucA:9 a=UiCQ7L4-1S4A:10 a=_W_S_7VecoQA:10 a=frz4AuCg-hUA:10 a=1Erk4P5SMDsA:10 a=djSSOgbfo6cA:10 a=uA3DNhT25qt1xNi6:21 a=pU6K1v_LC3pcqb4U:21 a=calcr0YIHCcCnjZw:21 a=g3L/TDsr+eNLfIieSKfGkw==:117 X-Cloudmark-Score: 0 X-Authenticated-User: X-Originating-IP: 174.110.170.10 Received: from [174.110.170.10] ([174.110.170.10:62262] helo=EdPC) by cdptpa-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 69/B7-09617-415A2F05; Sun, 13 Jan 2013 12:14:12 +0000 Message-ID: <8CCC5C08E1AC45379A1355B2795714BE@EdPC> From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Hiccup Date: Sun, 13 Jan 2013 07:14:11 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01CDF15D.964CCAC0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0010_01CDF15D.964CCAC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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. =20 Ed From: John Slade=20 Sent: Saturday, January 12, 2013 7:31 PM To: Rotary motors in aircraft=20 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?? =20 Bill B=20 =20 -------------------------------------------------------------------------= ----- 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 =20 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. =20 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. =20 Steve Boese RV6A, 1986 13B NA, RD1A, EC2 =20 -------------------------------------------------------------------------= ----- 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=20 MAGNECORE. =20 -- 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. =20 Bill B =20 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_0010_01CDF15D.964CCAC0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
I agree with, John.  I had Magnacore make = custom=20 wires for my rotary - cost me around $45 back then.  Have flow for = close to=20 10 years now with the wires with no problem.    I also = had the=20 boots in two different colors, one color for leading and one for = trailing. =20
 
Ed

From: John Slade
Sent: Saturday, January 12, 2013 7:31 PM
Subject: [FlyRotary] Re: Hiccup

I'd recommend paying the $85.  My = magnacore=20 custom made plug leads haven't given me a problem in 8 years.
Any way = you can=20 eliminate one possible cause is worth it. One nice thing about Magnacore = is that=20 they will make them to specified length with pre-installed connectors. I = got=20 mine in 2 colors. Red for leading, Black for trailing.

On = 1/12/2013 3:18=20 PM, Bill Bradburry wrote:

The = Magnacore wires=20 are fairly pricey, about $85 for the RX-8.  Not that I am cheap = or=20 anything, but does anyone have a more economical=20 source??

 

Bill B=20

 

From:=20 Rotary motors in aircraft = [mailto:flyrotary@lancaironlin= e.net]=20 On Behalf Of Steven W. = Boese
Sent: = Saturday, January=20 12, 2013 1:30 PM
To:=20 Rotary motors in=20 aircraft
Subject: [FlyRotary] Re:=20 Hiccup

 

I had an=20 aftermarket tachometer on my engine test stand that would often read = twice the=20 actual rpm.  The engine stand was set up so that the power to = each of the=20 four ignition coils could be controlled independently.  The spark = plug=20 wires were Mazda OEM.  The behavior of the tach would = sometimes be=20 affected by the combination of ignition coils that were active.  = In the=20 course of troubleshooting, it was found that the tach would = consistently=20 read twice the actual RPM when its input wire was completely = disconnected at=20 the tach.  It was concluded that the tach was responding to = signals=20 emitted by the spark plug wires and the doubled rpm indication = was due to=20 triggering by the ignition signals from both rotors.  = Replacing the=20 Mazda spark plug wires with Magnecore wires from the installation = in my=20 plane cured the tach errors.  Now, however, checking = the=20 ignition timing with an inductive timing light pickup on = these wires was=20 difficult whereas it was not a problem with the original=20 wires.

 

It should = be noted=20 that the EC2 on the engine stand never gave any indication = of having=20 problems when either set of spark plug wires was installed in spite of = being=20 physically located closer to the coils and spark plug = wires relative=20 to the tach.

 

Steve=20 Boese

RV6A, = 1986 13B=20 NA, RD1A, EC2

 =20

From: = Rotary motors in aircraft [flyrotary@lancaironline.net] on=20 behalf of Dale_R [dale.rog@gmail.com]
Sent: Saturday, January 12, = 2013 8:04=20 AM
To: = Rotary motors in aircraft
Subject: [FlyRotary] Re:=20 Hiccup

Dunno how many people here = remember when=20 spark wire was just that: wire.  But it was electrically = noisy.  So=20 it got replaced by carbon impregnated fabric, which has rather high = resistance=20 (a cheap way to damp the "noise").

Another way to suppress the = "noise"=20 is to wrap the wire (many turns, closely spaced) around an insulating = core,=20 which creates an inductive impedance, which accomplishes the same goal = but=20 readily passes spark current.  AFAIK, "MAGNECORE" was the first = to=20 explore this method, but several companies offer a similar product = now. =20 According to some sources, the core material can make a large = difference in=20 the inductive effectiveness.  Therefore, I'd recommend=20 =
MAGNECORE.
 

-- 
Best Regards,
Dale_R (who has no financial interest in =
Magnecore)
Cozy MKIV #497




On 1/12/2013 7:21 = AM,=20 Bill Bradburry=20 wrote:

Anybody = have a=20 recommendation for ignition wires for the Renesis?  I have the = original=20 Mazda wires.  I checked them out yesterday and they seemed = fine, but I=20 am still considering replacing them to see if it = helps.

 

Bill=20 B

 


No virus found in this=20 message.
Checked by AVG - www.avg.com
Version: 2013.0.2890 / = Virus=20 Database: 2637/6025 - Release Date: 01/11/13

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