Return-Path: Received: from mailout1.accesscomm.ca ([204.83.142.27] verified) by logan.com (CommuniGate Pro SMTP 4.2.4) with ESMTP id 457886 for flyrotary@lancaironline.net; Fri, 08 Oct 2004 15:11:18 -0400 Received-SPF: pass receiver=logan.com; client-ip=204.83.142.27; envelope-from=jjjohnson@accesscomm.ca Received: from Drafting1 (static24-72-101-251.weyburn.accesscomm.ca [24.72.101.251]) by mailout1.accesscomm.ca (Access Communications) with ESMTP id i98JAkGP027330 for ; Fri, 8 Oct 2004 13:10:47 -0600 Message-ID: <00dd01c4ad6a$8c906b30$8200a8c0@Drafting1> From: "Jarrett Johnson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Low power 20B operation Date: Fri, 8 Oct 2004 13:11:00 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DA_01C4AD38.41A9AFF0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_00DA_01C4AD38.41A9AFF0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Al where are you getting your fuel for your installation? Is it = possible if your running out of the a/c tanks for the first time that = there was some dust contamination or something of that nature [ possibly = in the lines] that would plug or foul the injectors? Jarrett Johnson ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Thursday, October 07, 2004 9:24 AM Subject: [FlyRotary] Re: Low power 20B operation Al, You may have answered this already, but have you checked the injector = spray patterns? It is possible that they "click" ok while the fuel = orifices are plugged with some gunk. I took mine and safety wired them = to the injector manifold, hooked up a fuel supply, hit them with 12v and = observed the spray patterns. Probably a waste of time, but it would = tell you that you're getting a good mix of fuel into each chamber.=20 Mark; No I haven't tested them myself, but sent them off the RC Engineering = who cleaned, flow tested and checked the pattern. There has just been a = few hours on the dyno and on the plane, but that doesn't mean there = couldn't be something in there, although there is a 20 micron filter in = the line. First I need to eliminate any electronic issues. I'm not = sure the pattern is of that much concern on the primary; there is that = little plastic deflector below the injector. I don't know if the fuel = actually sprays on that, or if it just causes some turbulence in the = runner right there for better mixing. BTW, Initially I had incorrectly wired my injector relay. It took me = a while to figure out what I had done wrong and correct it. I got it = wired correctly now... I think. So did I, but caught that in the first runs on the dyno. Al ------=_NextPart_000_00DA_01C4AD38.41A9AFF0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Al where are you getting your fuel for = your=20 installation?  Is it possible if your running out of the a/c tanks = for the=20 first time that there was some dust contamination or something of that = nature [=20 possibly in the lines] that would plug or foul the = injectors?
 
Jarrett Johnson
 
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Thursday, October 07, = 2004 9:24=20 AM
Subject: [FlyRotary] Re: Low = power 20B=20 operation

 

Al,
You may have = answered=20 this already, but have you checked the injector spray patterns?  = It is=20 possible that they "click" ok while the fuel orifices are plugged with = some=20 gunk.  I took mine and safety wired them to the injector = manifold, hooked=20 up a fuel supply, hit them with 12v and observed the spray = patterns. =20 Probably a waste of time, but it would tell you that you're getting a = good mix=20 of fuel into each chamber.

Mark;

No I=20 haven=92t tested them myself, but sent them off the RC Engineering who = cleaned,=20 flow tested and checked the pattern.  There has just been a few = hours on=20 the dyno and on the plane, but that doesn=92t mean there couldn=92t be = something=20 in there, although there is a 20 micron filter in the line.  = First I need=20 to eliminate any electronic issues.  I=92m not sure the pattern = is of that=20 much concern on the primary; there is that little plastic deflector = below the=20 injector.  I don=92t know if the fuel actually sprays on that, or = if it=20 just causes some turbulence in the runner right there for better=20 mixing.

BTW, Initially = I had=20 incorrectly wired my injector relay.  It took me a while to = figure out=20 what I had done wrong and correct it.  I got it wired correctly = now... I=20 think.

So did=20 I, but caught that in the first runs on the dyno.

Al

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