X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from email2k3.itlnet.net ([64.19.112.12] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 948773 for flyrotary@lancaironline.net; Wed, 18 May 2005 12:11:22 -0400 Received-SPF: none receiver=logan.com; client-ip=64.19.112.12; envelope-from=jwvoto@itlnet.net Received: from rav.itlnet.net (unverified [192.168.10.149]) by itlnet.net (Rockliffe SMTPRA 6.1.17) with SMTP id for ; Wed, 18 May 2005 11:10:35 -0500 Received: from JWVOTO (unverified [64.19.116.93]) by itlnet.net (Rockliffe SMTPRA 6.1.17) with SMTP id for ; Wed, 18 May 2005 11:10:33 -0500 Message-ID: <022b01c55bc4$6ae46dc0$35741340@JWVOTO> From: "Wendell Voto" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EC2 Problem suggestion Date: Wed, 18 May 2005 11:12:01 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0228_01C55B9A.6AE04120" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 This is a multi-part message in MIME format. ------=_NextPart_000_0228_01C55B9A.6AE04120 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable realized that you used shield wires, did you shield all wires? Don't = know what type of wire you used, maybe you mentioned it somewhere. = Shielded wire can have a lot of capacitance =20 I used shielded 22g aircraft wire for all EC2 inputs to the PCM = (program control module) and EM2. The shield for each is grounded at the = EC2 end only. Resistance measures around 0.3 ohms on each wire. The EC2 = manual calls for shielding on injector and CAS wires only. Tracy = suggested I shield all wires to eliminate noise. I could try = disconnecting the shields if you think it might help - but doesn't that = put me back in the "noise" regime? Might be a good idea. Right now a = little "noise" would be kinda refreshing. :( John John, Didn't know Tracy recommended using shielded wires so it must not pose = a problem. Has Tracy used all shielded wire on any of his projects? = Wish I could be of more help, I remember my cable had several mistakes = in it and had someone to help buzz out the cable and I could not believe = I swapped sides on the connector on a few connections so it is very easy = to not see the mistake, kind of like proof reading your own writings and = don't see all the errors until after getting away and then starting the = process again. Like they say, it is usually the last thing that you did, = my problem is rembering the last thing I did. Wendell You must have a good meter, 22ga. @ 15ft calculates to about .24 ohm. ------=_NextPart_000_0228_01C55B9A.6AE04120 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
realized that you used shield wires, did = you shield=20 all wires?  Don't know what type of wire you used, maybe you = mentioned it=20 somewhere.  Shielded wire can have a lot of = capacitance  
I used = shielded 22g=20 aircraft wire for all EC2 inputs to the PCM (program control = module) and=20 EM2. The shield for each is grounded at the EC2 end = only. Resistance=20 measures around 0.3 ohms on each wire. = The EC2 manual calls for shielding on injector and CAS = wires=20 only. Tracy suggested I shield all wires to eliminate noise. I could = try=20 disconnecting the shields if you think it might help - but doesn't = that put me=20 back in the "noise" regime? Might be a good idea. Right now a little = "noise"=20 would be kinda refreshing. :(
 
John
 
John,
Didn't = know Tracy=20 recommended using shielded wires so it must not pose a problem.  = Has=20 Tracy used all shielded wire on any of his projects?  Wish I = could be of=20 more help, I remember my cable had several mistakes in it and had = someone to=20 help buzz out the cable and I could not believe I swapped sides on the = connector on a few connections so it is very easy to not see the = mistake, kind=20 of like proof reading your own writings and don't see all the errors = until=20 after getting away and then starting the process again. Like they say, = it is=20 usually the last thing that you did, my problem is rembering the last = thing I=20 did.
Wendell
You must = have a good=20 meter, 22ga. @ 15ft calculates to about .24=20 ohm.
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