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: " eanderson@carolina.rr.com" Received: from [47.43.26.140] (HELO p-impout009.msg.pkvw.co.charter.net) by logan.com (CommuniGate Pro SMTP 6.3.18) with ESMTPS id 2062324 for flyrotary@lancaironline.net; Thu, 25 May 2023 15:25:23 -0400 Received-SPF: pass receiver=logan.com; client-ip=47.43.26.140; envelope-from=eanderson@carolina.rr.com Received: from [192.168.1.12] ([66.26.212.217]) by cmsmtp with ESMTP id 2Ga8qTIl3KYZi2Ga9quEfU; Thu, 25 May 2023 19:25:05 +0000 X-Authority-Analysis: v=2.4 cv=C4P6dCD+ c=1 sm=1 tr=0 ts=646fb611 a=WcvdwKkRgKsaRaJ9Bx4DbQ==:117 a=WcvdwKkRgKsaRaJ9Bx4DbQ==:17 a=o1OHuDzbAAAA:8 a=Ia-xEzejAAAA:8 a=CwC_KvXQibFxJ3KSb_QA:9 a=QEXdDO2ut3YA:10 a=4PR2P7QzAAAA:8 a=0CgXasz2Chw5ddW3OeEA:9 a=kRbh7IKw5edOsdw_:21 a=frz4AuCg-hUA:10 a=_W_S_7VecoQA:10 a=lqcHg5cX4UMA:10 a=5YQ6H4ZxyGn-KoBYtt8s:22 a=Urk15JJjZg1Xo0ryW_k8:22 a=4dqwQCo7Po2mVW515mGf:22 To: "flyrotary@lancaironline.net" Subject: Re: [FlyRotary] AR2592 gap Date: Thu, 25 May 2023 19:25:06 +0000 Message-Id: In-Reply-To: References: Reply-To: eanderson@carolina.rr.com User-Agent: eM_Client/9.2.1735.0 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="------=_MBCFDB8D27-C437-4849-A03D-E32475B94747" X-CMAE-Envelope: MS4xfMZFQmcOB/WOSHG+4DxeQyCbAFQyMZQZm1D79tGgBZ4D54rJ/vYg0Fb7uucEoXWSXdPkdBdZCyzs4piCnhG4aUKmP6OrAkEwFuOPugghRvWo6FrFV1Bv Q7bjbnIiHLaxUwXzgI/Lk1IzFlOSuNScqaZo8dxVCXl1NflVuQAGrmxnDg9kZEd1/lzWGrBTNDz8aoNI5rRYjz7wJuYSP6kqvEk= --------=_MBCFDB8D27-C437-4849-A03D-E32475B94747 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: quoted-printable Finn, That sounds a lot like the onset of rpm drop caused by lead fouled=20 plugs. I used to get around 100 hrs and then would start getting=20 Sparkplug SAG (engine rpm dropping off). It seem to get worst during=20 high power (such as take off) engine regimes. Regapping did not help and I never found a way of removing the lead=20 suspected of providing a grounding path inside the plug. I would recommend a new set of plugs. Ed ------ Original Message ------ From "Finn Lassen finn.lassen@verizon.net" To "Rotary motors in aircraft" Date 5/25/2023 9:13:07 AM Subject [FlyRotary] AR2592 gap >For those of you who use the AR2592 spark plug in the Renesis, do you use= the 0.6mm gap the plug comes with? I bought 8 of them some years ago. > >I've been using the stock plugs (RE7A and RE9B) for maybe 100 hours by now= . Experienced a brief 200 RPM drop on last takeoff. Wondering if it's time= to change plugs. Or re-gap the stock plugs to what? > >What can I learn by looking at plugs? > >Best way to clean them? > >Finn > > > --------=_MBCFDB8D27-C437-4849-A03D-E32475B94747 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Finn,

That sounds a lot like the onse= t of rpm drop caused by lead fouled plugs.=C2=A0 I used to get around 100 h= rs and then would start getting Sparkplug SAG=C2=A0 (engine rpm dropping of= f).=C2=A0 It seem to get worst during high power (such as take off) engine= regimes.=C2=A0=C2=A0

Regapping did not help and= I never found a way of removing the lead suspected of providing a grounding = path inside the plug.

=C2=A0 I would recommend= a new set of plugs.

Ed


------ Original Message ------
To "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Date 5/25/2023 9:13:07 AM
Subject [FlyRotary] AR2592 gap

For those of you who use the AR2592 spark plug in = the Renesis, do you use the 0.6mm gap the plug comes with? I bought 8 of t= hem some years ago.
=C2=A0
I've been using the stock plugs (RE7A and RE9B) f= or maybe 100 hours by now. Experienced a brief 200 RPM drop on last takeoff= . Wondering if it's time to change plugs. Or re-gap the stock plugs to what= ?
=C2=A0
What can I learn by looking at plugs?
=C2=A0
Best way to clean them?
=C2=A0
Finn
=C2=A0
=C2=A0
=C2=A0
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