X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp109.sbc.mail.mud.yahoo.com ([68.142.198.208] verified) by logan.com (CommuniGate Pro SMTP 5.2.15) with SMTP id 3766154 for flyrotary@lancaironline.net; Mon, 20 Jul 2009 15:00:33 -0400 Received-SPF: neutral receiver=logan.com; client-ip=68.142.198.208; envelope-from=ceengland@bellsouth.net Received: (qmail 62014 invoked from network); 20 Jul 2009 18:59:57 -0000 Received: from unknown (HELO ?192.168.10.7?) (ceengland@70.152.71.199 with plain) by smtp109.sbc.mail.mud.yahoo.com with SMTP; 20 Jul 2009 18:59:56 -0000 X-YMail-OSG: BxaAZqEVM1ktm.sPMbCJU2m.ywnY83OHqDZe377Dn3pb3OSbqt_tQ1uElIYOvq2nOunTd0PZO2ziUnusi5Sn8h2csL71C8WOmgBlHstrAKnELs6Lg63zwVvBgHs7dqo3ki9M5NzaKlwRA9QW9p30XWr6H5LSyqJcn0jRJHV7L1UDOUBp8zZ_tp.STVLLEus1vWjcGX7y6KSFCvTftnnyFaWPjtrScZKptLo.L1AGHbiTCTUfpKHP8R9OGw8nMtzXjDaGMcK.P8KDRnZ8taGrO3wPrG_2aFITL_c5RW5aCAa0zdZ9e.04n..XiW_UOOSeSAQ- X-Yahoo-Newman-Property: ymail-3 Message-ID: <4A64BEAB.4050603@bellsouth.net> Date: Mon, 20 Jul 2009 13:59:55 -0500 From: Charlie England User-Agent: Thunderbird 2.0.0.22 (Windows/20090605) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] WTF? Just when I think everything is going perfect... References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit David Leonard wrote: > Yesterday I went flying and tested out my new smoke system... > everything was perfect... somke is fun. Today I head out to go > formation flying.. nothing changed from my flight yesterday except > for adding fuel. But it won't start... I verify that I have fuel > pressure, fuel flow, injector function (in test mode), I have spark > (in test mode). Maybe it is flooded... I change the plugs, re-verify > spark in cranking mode (to eliminate issues with CAS), re-drain the > fuel, verify compression, re-verify fuel pressure and flow and > injector funcion... but still it just turns over without starting... Sigh > > Anyone one know of a new component necessary other than fuel, spark, > and compression? > > -- > David Leonard > > Turbo Rotary RV-6 N4VY > http://N4VY.RotaryRoster.net > http://RotaryRoster.net Details? Spins with no sign of firing at all? Spits & pops but no regular combustion events? Any chance that the extra effort required to spin the engine by hand using the prop through the reduction drive is hiding the fact that you have low compression? The old RX-7 starting trick is fairly quick if you've already got the cowl off. Pull a plug for each rotor & squirt in a little ATF, reinsert the plug & try to crank. Lyn can probably recommend how much. I never measured; I just dumped in as much as I could get in there while fighting all the junk under the hood. Charlie