Return-Path: Received: from mail.tsisp.com ([65.23.108.44] verified) by logan.com (CommuniGate Pro SMTP 4.2.2) with ESMTP-TLS id 420748 for flyrotary@lancaironline.net; Sat, 18 Sep 2004 18:21:02 -0400 Received-SPF: none receiver=logan.com; client-ip=65.23.108.44; envelope-from=steve@tsisp.com Received: from stevehome by mail.tsisp.com (Technical Support Inc.) with SMTP id CQA74584 for ; Sat, 18 Sep 2004 18:20:31 -0400 Reply-To: From: "Steve Brooks" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Engine start Date: Sat, 18 Sep 2004 18:22:10 -0400 Message-ID: <004d01c49dcd$f0fdadf0$0100007f@WORKGROUP.local> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_004E_01C49DAC.69EC0DF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_004E_01C49DAC.69EC0DF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageJohn, I know that the injectors are staged, i.e. it runs on one set below a certain RPM or MAP point (forget which) and then kicks in the other set above that. 3000 RPMs seems to ring a bell, but I could be wrong. I thought that it ran on the primary then added the secondary, but maybe it is the other way around. Have you checked your fuel pressure ? I've had problems with mine running rich at low RPM's If your regulator is MAP reference, it should only be running 25-30 lbs at idle. Static is suppose to be 34-36 I believe. I have mine set a little lower, at least on my gauge, because I think that it reads low. You might want to try lowering your regular and see if it helps any. Steve Brooks -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of John Slade Sent: Saturday, September 18, 2004 5:55 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Engine start OK, Guys. Here's another chance for your valued remote diagnosis input. After 2 months hiatus my engine now starts reliably and runs consistently....just very very badly. In all the time I've had the engine running, with various problems of mixture and tuning it has NEVER run this rough. It shakes, and max rpm is about 2100. Each plug seems to have a good spark but today I installed new plugs anyway and checked the voltage on all coils and injectors. It runs exactly the same as it did yesterday. The plugs are black and the engine blows a bit of blue smoke. It IS running rich, so I tried changing the overall range with mode 3. As I lowered the mixture with 7 or 8 pushes the rpm came up a bit, then started to slow down again. At the best rpm the EC2 is showing slightly higher than center on the mixture. I tried switching off either set of coils and felt a degradation with either off. Disabling secondary injectors killed the engine. Primaries didn't make much difference. I checked compression. 105# on each rotor. My next thought is to check that cold start is operating properly, but I'm pretty sure it is because the engine slowed down when I tried switching it on. I spoke with Tracy and he suspects fuel, possibly a bad connection in the injector wiring, so tomorrow I'll rewire the entire injector circuit if necessary. I'm so glad Rusty still doesn't have power. I'm not in any mood for jokes :( Thoughts anyone??? Frustrated in West Palm ------=_NextPart_000_004E_01C49DAC.69EC0DF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
John,
I know=20 that the injectors are staged, i.e. it runs on one set below a certain = RPM or=20 MAP point (forget which) and then kicks in the other set above = that.  3000=20 RPMs seems to ring a bell, but I could be wrong.  I thought that it = ran on=20 the primary then added the secondary, but maybe it is the other way=20 around.
 
Have=20 you checked your fuel pressure ?  I've had problems with mine = running rich=20 at low RPM's If your regulator is MAP reference, it should only be = running 25-30=20 lbs at idle.  Static is suppose to be 34-36 I believe.  I have = mine=20 set a little lower, at least on my gauge, because I think that it reads=20 low.  You might want to try lowering your regular and see if it = helps=20 any.
 
Steve=20 Brooks
-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of John=20 Slade
Sent: Saturday, September 18, 2004 5:55 = PM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] Re: Engine=20 start

OK,=20 Guys. Here's another chance for your valued remote diagnosis=20 input.
 
After 2 months hiatus my engine now starts reliably and runs=20 consistently....just very very badly. In all the time=20 I've had the engine running, with various problems of mixture and = tuning it has NEVER run this rough. It shakes, and max rpm is = about 2100.=20 Each plug seems to have a good spark but today I installed new plugs = anyway=20 and checked the voltage on all coils and injectors. It runs exactly = the same=20 as it did yesterday. The plugs are black and the engine blows a bit of = blue=20 smoke.
 
It=20 IS running rich, so I tried changing the overall range with mode 3. As = I=20 lowered the mixture with 7 or 8 pushes the rpm came up a bit, then = started to=20 slow down again. At the best rpm the EC2 is showing slightly higher = than=20 center on the mixture. I tried switching off either set of coils and = felt a=20 degradation with either off. Disabling secondary injectors killed = the=20 engine. Primaries didn't make much difference. I checked compression. = 105# on=20 each rotor.
 
My=20 next thought is to check that cold start is operating properly, but = I'm pretty=20 sure it is because the engine slowed down when I tried switching it = on.=20
 
I spoke with Tracy and he suspects fuel, = possibly a bad=20 connection in the injector wiring, so tomorrow I'll rewire the entire = injector=20 circuit if necessary.
 
I'm so glad Rusty still doesn't have power. = I'm not in=20 any mood for jokes :(
 
Thoughts=20 anyone???
 
Frustrated in West=20 Palm
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