X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from imr-ma02.mx.aol.com ([64.12.206.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3815355 for flyrotary@lancaironline.net; Sun, 16 Aug 2009 23:52:50 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.206.40; envelope-from=PhilWhite9@aol.com Received: from imo-da01.mx.aol.com (imo-da01.mx.aol.com [205.188.169.199]) by imr-ma02.mx.aol.com (8.14.1/8.14.1) with ESMTP id n7H3ptm2026870; Sun, 16 Aug 2009 23:51:55 -0400 Received: from PhilWhite9@aol.com by imo-da01.mx.aol.com (mail_out_v42.5.) id i.d30.52ea783e (43912); Sun, 16 Aug 2009 23:51:51 -0400 (EDT) Received: from [192.168.1.101] (ppp-68-251-37-78.dsl.chcgil.ameritech.net [68.251.37.78]) by cia-dc08.mx.aol.com (v124.15) with ESMTP id MAILCIADC081-ab884a88d3d7214; Sun, 16 Aug 2009 23:51:51 -0400 Message-ID: <4A88D3D6.5090304@aol.com> Date: Sun, 16 Aug 2009 22:51:50 -0500 From: Phil White User-Agent: Thunderbird 2.0.0.22 (Windows/20090605) MIME-Version: 1.0 To: Bill Schertz , rwstracy@gmail.com, Rotary motors in aircraft grp Subject: 20B - holes above plugs Content-Type: multipart/alternative; boundary="------------080509090800040807040100" X-AOL-IP: 68.251.37.78 X-Mailer: Unknown (No Version) X-Spam-Flag:NO X-AOL-SENDER: PhilWhite9@aol.com --------------080509090800040807040100 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Bill, Tracy: I have just now noticed that the 20B rotor housing has a treaded hole about an inch above the upper spark plug hole. There appears to be a small hole at the bottom into the rotor chamber. What is this for? For aviation use, should it be plugged? If so, do you know what size thread is needed? Phil --------------080509090800040807040100 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Bill, Tracy: I have just now noticed that the 20B rotor housing has a treaded hole about an inch above the upper spark plug hole. There appears to be a small hole at the bottom into the rotor chamber.

What is this for? For aviation use, should it be plugged? If so, do you know what size thread is needed?

Phil
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