Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2.1) with ESMTP id 415728 for flyrotary@lancaironline.net; Fri, 17 Sep 2004 17:28:42 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=sladerj@bellsouth.net Received: from JSLADE ([209.214.14.172]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20040917212811.NKUL13060.imf23aec.mail.bellsouth.net@JSLADE> for ; Fri, 17 Sep 2004 17:28:11 -0400 From: "John Slade" To: "Rotary motors in aircraft" Subject: Engine start Date: Fri, 17 Sep 2004 17:28:11 -0400 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0039_01C49CDB.B4614160" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_0039_01C49CDB.B4614160 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageWell N96PM makes noise again. It's running like .hit, but it IS running. The (final) starting problem was the secondary injector switch. I found low voltage at the secondary injectors and traced it back to the switch - serves me right - it was one of those mini radio shack switches. They're supposed to be rated for 10A, but the innards of these things are pitiful. I know because the switch fell apart in my hand. Two big fat DPDT switches later and the engine fires up right away. But I'm pretty sure its running on one rotor, and THAT one isn't running well - very rich, I think. The engine shakes more than it ever has and doesn't respond hardly at all to throttle changes. Just sits and burbles at about 1600rpm. So, I have a bit more debugging to do, but at least it's a step forward. John ------=_NextPart_000_0039_01C49CDB.B4614160 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
Well N96PM makes=20 noise again. It's running like .hit, but it IS=20 running.
 
The (final)=20 starting problem was the secondary injector switch. I found low voltage = at the=20 secondary injectors and traced it back to the switch - serves me right - = it was=20 one of those mini radio shack switches. They're supposed to be rated for = 10A,=20 but the innards of these things are pitiful. I know because the switch = fell=20 apart in my hand. Two big fat DPDT switches later and the engine fires = up right=20 away. But I'm pretty sure its running on one rotor, and THAT one isn't = running=20 well - very rich, I think. The engine shakes more than it ever has and = doesn't=20 respond hardly at all to throttle changes.  Just sits and burbles = at about=20 1600rpm.
 
So, I have a bit=20 more debugging to do, but at least it's a step=20 forward.
John
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