X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ia0-f170.google.com ([209.85.210.170] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTPS id 6001087 for flyrotary@lancaironline.net; Tue, 08 Jan 2013 12:00:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.170; envelope-from=rwstracy@gmail.com Received: by mail-ia0-f170.google.com with SMTP id i1so553707iaa.15 for ; Tue, 08 Jan 2013 09:00:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:subject:references:from:content-type:x-mailer :in-reply-to:message-id:date:to:content-transfer-encoding :mime-version; bh=tmxRk/ZwyiQooZIEXUQzwPJQb3TysYBpyKvnEQ8ugpE=; b=x1mbC9XR9Dn5Vh22NQ0w14CKexYcTEvW7zdDDFXKEjCSZ5Gjw55/qG689uytMbYuh0 oiChq3Dpy/mgFCn+qPmbfvU0+r+fwySwypyjbRu5gN9lBqoMkwUnU74YwNHzowk0wDYL 92B5qgjFCS4KGBQr7BeKvg9NU5bLG8hArCYfyLprMbJGYSAZnC9ZgY2KU5l38O14evZl taeaOMmyFj/AifgaENOYjoA6/l7MZw9xu1v07BIMgNBfxnby4mBZrDeSFsjWrmAAnkBn FD74A4tusrPdFE9DLo/dVQGyLd82kvdEfyVrWxRujtD7qXANkzz5+GwOITvI6UBTE/l4 Wxow== X-Received: by 10.50.237.104 with SMTP id vb8mr9734216igc.11.1357664408239; Tue, 08 Jan 2013 09:00:08 -0800 (PST) Return-Path: Received: from [192.168.1.4] (93.sub-70-193-192.myvzw.com. [70.193.192.93]) by mx.google.com with ESMTPS id bg10sm10167413igc.6.2013.01.08.08.59.59 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Tue, 08 Jan 2013 09:00:07 -0800 (PST) Subject: Re: [FlyRotary] Re: Aeroquip hose changed to hiccup References: From: Tracy Content-Type: multipart/alternative; boundary=Apple-Mail-105A626D-B3DA-47AD-AA50-DF1964BF4574 X-Mailer: iPad Mail (10A523) In-Reply-To: Message-Id: Date: Tue, 8 Jan 2013 11:59:58 -0500 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (1.0) --Apple-Mail-105A626D-B3DA-47AD-AA50-DF1964BF4574 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Yes, bench testing on the EC2 version is complete. Don't know what vintage y= our EC2 is but the early ones did not have O2 sensor inputs and can't take a= dvantage of the closed loop modes. That is unrelated to the possible cause o= f the hiccup though. Tracy Sent from my iPad On Jan 8, 2013, at 8:37 AM, "Bill Bradburry" wrot= e: > I went thru and cleaned up all my grounds and it seems to have fixed every= thing with the exception of the hiccup.=20 > =20 > Tracy, have you finished the bench testing on the EC-2 upgrade yet? I wou= ld really like to try and see if that will fix this problem. My wife really= doesn=E2=80=99t like that hiccup! > =20 > Bill B > =20 > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of Bill Bradburry > Sent: Saturday, December 08, 2012 3:41 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Aeroquip hose > =20 > I currently have a separate ground from each of the batteries to a Nuckoll= s =E2=80=9Cforest of tabs=E2=80=9D ground point. Everything inside the cock= pit grounds here. Also the fuel pumps and injectors ground here. The coils= ground on the center iron. There are separate grounds from each battery to= the PSRU plate on each side of the starter. I have considered bringing two= separate grounds from the center iron to the batteries just in case there i= s resistance getting from the center iron to the PSRU plate. > I am also taking all my grounds apart to check for corrosion or anything t= hat seems that it might not be properly bonded. > =20 > I am doing this for two reasons. One, I am still getting that occasional =E2= =80=9Chiccup=E2=80=9D that is violent enough to shake the plane when it happ= ens. It is bad enough that I am concerned that it might be bad for the pin i= n the PSRU. I am also wondering if it could be the PSRU that has sheared th= e pin and is slipping? Someone on here had that happen and I would really a= ppreciate a description of what that sounded and felt like and also how I co= uld make certain that is not the problem. No, I don=E2=80=99t want to disma= ntle the PSRU to check it unless that seems to be the only way to check it. > =20 > Also, Tracy, how are you progressing on getting the upgrade for the EC-2 t= hat might fix this hiccup if that is what it is? I think you had it done fo= r the EC-3 and were working on the EC-2 implementation?? > =20 > The second reason for going thru the grounds is that I am having an interm= ittent problem with my GTX327 transponder, MFD150 moving map, and TruTrak au= topilot shutting down. This seems to happen more often when I key the mike o= n my GNS430W radio, but keying the mike is not required. It sometimes happe= ns just out of the blue. Also most of the time, only the transponder shuts o= ff. Only sometimes does the moving map and autopilot join in the fun. > =20 > Everybody tells me that it sounds like a ground issue, hence I am going th= ru the ground system. > =20 > I welcome all opinions and input! > =20 > Bill B > =20 > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of Tracy > Sent: Saturday, December 08, 2012 10:56 AM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Aeroquip hose > =20 > Tying the engine parts together should not be necessary but you still need= a separate ground from battery to airframe ground (if metal) and your avion= ics ground point. Also separate feeds from +12 battery to starter/alternat= or and avionics. You can Use the starter/alternator feed for coils, injecto= rs & fuel pumps to keep noise down on the avionics bus. >=20 > Tracy >=20 > On Sat, Dec 8, 2012 at 12:23 AM, Bill Bradburry = wrote: > Several months ago, after a discussion with Tracy, I ran grounding straps f= rom each battery to the PSRU plate on both sides of the starter mount. I ha= d previously had the grounding strap running between the center iron and the= =E2=80=9Cforest of tabs=E2=80=9D grounding block on the firewall. Tracy su= ggested I move it so the starter amps would not get into the grounding block= . > Now I have the igniters grounded on the center iron and I am considering r= unning a ground strap from the center iron to the batteries or trying to tie= each section of the engine =E2=80=9Csandwich=E2=80=9D together by running a= wire between them. This would to be certain that the ground is good on the= igniters. > =20 > Any opinions on this?? > =20 > Bill B > =20 > From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of Andrew Martin > Sent: Friday, December 07, 2012 8:29 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] Re: Aeroquip hose > =20 > Bill >=20 > As Mark says + make sure you have a ground cable/strap connected battery d= irect to your starter. Do not expect starter to ground through your engine w= ithout problems. > I remember Tracy posting on this issue years ago just a bit hard to find i= n the archives now. >=20 > Andrew > =20 >=20 > On Sat, Dec 8, 2012 at 7:26 AM, Mark Steitle wrote: > Bill,=20 > =20 > You may want to check your engine ground. Starter current may be causing t= his. > =20 > Mark S.=20 > =20 > =20 >=20 > On Fri, Dec 7, 2012 at 5:12 PM, Bill Bradburry w= rote: > I am working on cleaning up my ground system and I noticed that I have > several, 3 or 4, places on my SS braided fuel hose that appears to be burn= t > like it had an electrical spark exit from it. I have not found anything i= n > the vicinity of these places that look like where the spark? would have > jumped?? >=20 > Has anyone seen something like this and what should I do about it? Do I > have a ground problem in the engine compartment or is this maybe static? > The hoses are covered by SS and are connected on one end to a filter that > has a ground strap on it and on the other end to the fuel rail which is > grounded to the engine. >=20 > Bill B >=20 >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html > =20 > =20 > =20 --Apple-Mail-105A626D-B3DA-47AD-AA50-DF1964BF4574 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Yes, bench testing on the EC2 version i= s complete.  Don't know what vintage your EC2 is but the early ones did= not have O2 sensor inputs and can't take advantage of the closed loop modes= .  That is unrelated to the possible cause of the hiccup though.
<= div>
Tracy

Sent from my iPad

On Jan 8, 20= 13, at 8:37 AM, "Bill Bradburry" <bbradburry@bellsouth.net> wrote:

=

I went thru and cleaned up all my groun= ds and it seems to have fixed everything with the exception of the hiccup. = ;

 

Tracy, have you finished the bench testing on the EC-2 upgrade yet?  I would really like to try and see if that will fix this problem.  My wife really doesn=E2=80=99t like that hiccup!

 

Bill B

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironli= ne.net] On Behalf Of Bill Bradburry
Sent: Saturday, December 08, 2= 012 3:41 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Aero= quip hose

 

I currently have a separate ground from= each of the batteries to a Nuckolls =E2=80=9Cforest of tabs=E2=80=9D ground point.  Everything inside the cockpit grounds here.  Also the fuel= pumps and injectors ground here.  The coils ground on the center iron.  There are separate grounds from each battery to the PSRU plate o= n each side of the starter.  I have considered bringing two separate grou= nds from the center iron to the batteries just in case there is resistance getti= ng from the center iron to the PSRU plate.

I am also taking all my grounds apart t= o check for corrosion or anything that seems that it might not be properly bonded.

 

I am doing this for two reasons.  One, I am still getting that occasional =E2=80=9Chiccup=E2=80=9D that is vio= lent enough to shake the plane when it happens.  It is bad enough that I am concerned that it might be bad for the pin in the PSRU.  I am also wondering if it could be the PSRU that has sheared the pin and is slipping?  Someone on here had that happen and I would really appreciat= e a description of what that sounded and felt like and also how I could make certain that is not the problem.  No, I don=E2=80=99t want to dismantle= the PSRU to check it unless that seems to be the only way to check it.

 

Also, Tracy, how are you progressing on getting t= he upgrade for the EC-2 that might fix this hiccup if that is what it is? = I think you had it done for the EC-3 and were working on the EC-2 implementation??

 

The second reason for going thru the grounds is that I am having an intermittent problem with my GTX327 transpond= er, MFD150 moving map, and TruTrak autopilot shutting down.  This seems to happen more often when I key the mike on my GNS430W radio, but keying the mi= ke is not required.  It sometimes happens just out of the blue.  Also= most of the time, only the transponder shuts off.  Only sometimes does t= he moving map and autopilot join in the fun.

 

Everybody tells me that it sounds like a= ground issue, hence I am going thru the ground system.

 

I welcome all opinions and input!<= /o:p>

 

Bill B

 

From: Rotary motors in aircraft [mailto:flyrotary@lancaironli= ne.net] On Behalf Of Tracy
Sent: Saturday, December 08, 2= 012 10:56 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Aero= quip hose

 

Tying the engine parts together should not be necessary but you still need a separate ground from battery to airframe ground (if metal) and your avionics ground point.   Also separate feeds from +12 battery to starter/alternato= r and avionics.  You can Use the starter/alternator feed for coils, injec= tors & fuel pumps to keep noise down on the avionics bus.

Tracy

On Sat, Dec 8, 2012 at 12:23 AM, Bill Bradburry <bbradburry@bellsouth.net> wrote:

Several months ago, after a discussion with Tracy, I ran grounding strap= s from each battery to the PSRU plate on both sides of the starter mount.  I had previously had the grounding strap running between the center iron and the =E2=80=9Cforest of tabs=E2=80=9D grounding block on the firewall.  Tracy sugges= ted I move it so the starter amps would not get into the grounding block.

Now I have the igniters grounded on the center iron and I am considering running a ground strap from the center iron to the batteries or trying to tie each section of the engine =E2=80=9Csandwich=E2=80=9D together= by running a wire between them.  This would to be certain that the ground i= s good on the igniters.

 

Any opinions on this??

 

Bill B

 

From: Rotary motors in air= craft [mailto:fly= rotary@lancaironline.net] On Behalf Of Andrew Martin Sent: Friday, December 07, 20= 12 8:29 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Aero= quip hose

 

Bill

As Mark says + make sure you have a ground cable/strap connected battery dir= ect to your starter. Do not expect starter to ground through your engine without= problems.
I remember Tracy posting on this issue years ago just a bit hard to find in the archives now.=

Andrew

 

On Sat, Dec 8, 2012 at 7:26 AM, Mark Steitle <msteitle@gmail.com> wrote:

=

Bill, 

 

You may want to check your engine ground.  Starter current may be causing this.

 

Mark S. 

 

  

On Fri, Dec 7, 2012 at 5:12 PM, Bill Bradburry <bbradburr= y@bellsouth.net> wrote:

I am working on cleaning up my ground system and I noticed that I have
several, 3 or 4, places on my SS braided fuel hose that appears to be burnt<= br> like it had an electrical spark exit from it.  I have not found anythin= g in
the vicinity of these places that look like where the spark? would have
jumped??

Has anyone seen something like this and what should I do about it?  Do I=
have a ground problem in the engine compartment or is this maybe static?
= The hoses are covered by SS and are connected on one end to a filter that has a ground strap on it and on the other end to the fuel rail which is
grounded to the engine.

Bill B


--
Homepage:  http= ://www.flyrotary.com/
Archive and UnSub:   http://mail.lancaironline.net:81/list= s/flyrotary/List.html

 

 

 

= --Apple-Mail-105A626D-B3DA-47AD-AA50-DF1964BF4574--