X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Stephen Izett stephen.izett@gmail.com" Received: from mail-pf1-f178.google.com ([209.85.210.178] verified) by logan.com (CommuniGate Pro SMTP 6.3.5) with ESMTPS id 627127 for flyrotary@lancaironline.net; Wed, 26 Jan 2022 21:38:20 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.178; envelope-from=stephen.izett@gmail.com Received: by mail-pf1-f178.google.com with SMTP id a8so1376685pfa.6 for ; Wed, 26 Jan 2022 18:38:21 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:mime-version:subject:date:references:to:in-reply-to:message-id; bh=S15Wbrm2aW3DnOXeaLGiZE8LLbF8wdIWvPhSS/PypdE=; b=pgrIRN8PHnkRCYWaa+3ZP7z3P5vV5wt8O10/zELtAC1u6ah1l95GSoknH1N7FVdhz2 g8fKuaBhWFkJQwTcg4tjYUt7PSt4VqDJu8rBVlUxrTcqo7fB3VTyQlNhzworkUN9bT2b 49WPwExTvnH4KrYotPaEh+/kOUMIp1NX7w60owhXquDptgVeAijvQkYm13ScmAoeT+Hv lQqUKlxAQ9n+eAQ1Ns8FO8pzZpLGYZ79VrSBmcSPnh8VogzS6byO6G04S7tRG6BWw+1x F8oFFjM44iWMvuNJXqT1c2YZxt+d6H3fwu7YATEwJuGb49eXsSbfKZNdiJwjHHNE+zyM 4FJQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:mime-version:subject:date:references:to :in-reply-to:message-id; bh=S15Wbrm2aW3DnOXeaLGiZE8LLbF8wdIWvPhSS/PypdE=; b=Xphs96CrcIVbWrypSva9G7JjYSX69QRgII7B8EobiWUTtr5rbn1E/GC/bS5TtRa1oC O61bf8NYYDGCfFGTlrm8nqIk2FLijNsnhrXVPO5Wgjok53tSzblLfgDtDsf/yRCavksN oM8MDfDWwiFOFHicUytD5phKmoeiHodZtD9owXwFG1/vUIdgYi9lCE+yVD47cjKNKV/D Y7ZyNhgQ9OkUeu+swadpYUfx15I1iFyRI6BrYSpvuS0QyOWmlJvB3aPFB+mQubARCUty UJTUel4TIwIIrlUKOIVlm574nXdKSCbtzTVn2CldMwoge8T4nNcLhptdFZrUpKg1czw5 Lqhg== X-Gm-Message-State: AOAM532YNBd2e/7pL4Qfcjy/bsPsISy7eZAVL56Yk9XP2l7PG0H8GfW0 xUDdmvGRBjMlEePArglp/8phcBQ1paLs3w== X-Google-Smtp-Source: ABdhPJy+F/ziWYh1ICEKeqJ1r8Q5iJcNWHmJW0THgIdtRhkOR7lEWZ6oPKEuwmVB2l0pvQLk9IqePA== X-Received: by 2002:a63:2253:: with SMTP id t19mr1264637pgm.13.1643251083493; Wed, 26 Jan 2022 18:38:03 -0800 (PST) Return-Path: Received: from smtpclient.apple (203-59-74-185.perm.iinet.net.au. [203.59.74.185]) by smtp.gmail.com with ESMTPSA id b24sm2412523pgs.1.2022.01.26.18.37.59 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 26 Jan 2022 18:38:03 -0800 (PST) Content-Type: multipart/alternative; boundary="Apple-Mail=_67246B30-7789-41DE-A94C-CA150B30C375" Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.40.0.1.81\)) Subject: Re: [FlyRotary] One Rotor on my RX-8 engine may quit firing very intermittantly Date: Thu, 27 Jan 2022 10:37:55 +0800 References: To: Rotary motors in aircraft In-Reply-To: Message-Id: <6DB5B82F-8175-4448-9C5C-6FF30B32ADDE@gmail.com> X-Mailer: Apple Mail (2.3693.40.0.1.81) --Apple-Mail=_67246B30-7789-41DE-A94C-CA150B30C375 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Dennis I had an interesting occurrence of something similar last year. Really = rough running for a period of maybe a dozen seconds. I probably should have immediately switched to B comp but chose instead = to play with mixture to no effect and then the problem went away. I instinctively went for mixture as I have often had a missing issue if = mixture went too rich on takeoff and higher power.=20 I changed the plugs as they were due and as a precaution. The old plugs = looked fine but I know I dropped one of them previously so was = suspicious. The symptom hasn=E2=80=99t repeated, but it may not have been a plug. Cheers Steve Izett =20 > On 27 Jan 2022, at 10:17 am, Dennis Haverlah clouduster@austin.rr.com = wrote: >=20 > I have an RX-8 in my RV-7a with Tracy=E2=80=99s EC-2 and EM-2. = Recently while cruising the engine lost some power and went into a rough = mode. It only lasted about 2 seconds and returned to smooth running as = soon as I switched to the B controller. I landed and have been running = it on the ground to determine the cause. It has occurred 3 or 4 more = times and only lasts seconds. I believe I have determined that one = rotor quits firing when it runs rough. > =20 > Has anyone else experienced this problem and is there a fix? > =20 > Thanks > Dennis Haverlah > =20 > Sent from Mail for = Windows --Apple-Mail=_67246B30-7789-41DE-A94C-CA150B30C375 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi = Dennis
I had an interesting occurrence of something = similar last year. Really rough running for a period of maybe a dozen = seconds.
I probably should have immediately = switched to B comp but chose instead to play with mixture to no effect = and then the problem went away.
I instinctively = went for mixture as I have often had a missing issue if mixture went too = rich on takeoff and higher power. 
I changed = the plugs as they were due and as a precaution. The old plugs looked = fine but I know I dropped one of them previously so was = suspicious.

The = symptom hasn=E2=80=99t repeated, but it may not have been a = plug.

Cheers

Steve Izett

 

On 27 Jan 2022, at 10:17 am, = Dennis Haverlah clouduster@austin.rr.com <flyrotary@lancaironline.net> wrote:

I have an RX-8 in my RV-7a with Tracy=E2=80=99s = EC-2 and EM-2.  Recently while cruising the engine lost some power = and went into a rough mode.   It only lasted about 2 seconds = and returned to smooth running as soon as I switched to the B = controller.   I landed and have been running it on the ground = to determine the cause.  It has occurred 3 or 4 more times and only = lasts seconds.  I believe I have determined that one rotor quits = firing when it runs rough.
 
Has anyone else = experienced this problem and is there a fix?
 
Thanks
Dennis Haverlah
 
Sent from Mail for = Windows

= --Apple-Mail=_67246B30-7789-41DE-A94C-CA150B30C375--