X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.52.245.18] (HELO ispwest-email1.mdeinc.com) by logan.com (CommuniGate Pro SMTP 5.0.7) with ESMTP id 961854 for flyrotary@lancaironline.net; Tue, 31 Jan 2006 09:20:49 -0500 Received-SPF: none receiver=logan.com; client-ip=216.52.245.18; envelope-from=wschertz@ispwest.com Received: from 7n7z201 (unverified [63.13.186.70]) by ispwest-email1.mdeinc.com (Vircom SMTPRS 4.3.454.2) with SMTP id for ; Tue, 31 Jan 2006 06:19:59 -0800 X-Modus-BlackList: 63.13.186.70=OK;wschertz@ispwest.com=OK X-Modus-RBL: 63.13.186.70=0000274C X-Modus-Trusted: 63.13.186.70=NO Message-ID: <020201c62671$6a02b4c0$0400000a@7n7z201> From: "William" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Small holes in Intake Date: Tue, 31 Jan 2006 08:19:12 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01FD_01C6263F.04227500" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_01FD_01C6263F.04227500 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Buly, Al, Thanks for the replies. I hadn't seen anyone using them, and was = planning on blanking them off also. Bill Schertz KIS Cruiser # 4045 ----- Original Message -----=20 From: Al Gietzen=20 To: Rotary motors in aircraft=20 Sent: Tuesday, January 31, 2006 12:47 AM Subject: [FlyRotary] Re: Small holes in Intake Subject: [FlyRotary] Small holes in Intake While working on the plane yesterday, I pulled some of the tape off = the intake manifold area and discovered two little holes in the primary = injector area, on either side of the bolt hole. They go into the primary = injector area, and there are matching holes on the stock manifold, that = look like they are connected to a manifold vacuum line. Question: Has anyone used these -- or did you just block them off with = the manifold gasket. I speculate that they are used to help give a puff = of air on the injection cycle. I think that is exactly right, Bill; better distribution of fuel = spray/vapor. My custom manifold blocks them off, as do most alternative manifolds. = Apparently they are not an issue for the rpms we are interested in. Al ------=_NextPart_000_01FD_01C6263F.04227500 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Buly, Al,
 Thanks for the replies. I hadn't = seen anyone=20 using them, and was planning on blanking them off also.
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
From:=20 Al = Gietzen=20
Sent: Tuesday, January 31, 2006 = 12:47=20 AM
Subject: [FlyRotary] Re: Small = holes in=20 Intake

Subject:=20 [FlyRotary] Small holes in Intake

 

While working on the = plane=20 yesterday, I pulled some of the tape off the intake manifold area and=20 discovered two little holes in the primary injector area, on either = side of=20 the bolt hole. They go into the primary injector area, and there are = matching=20 holes on the stock manifold, that look like they are connected to a = manifold=20 vacuum line.

 

Question: Has anyone = used these --=20 or did you just block them off with the manifold gasket. I speculate = that they=20 are used to help give a puff of air on the injection=20 cycle.

 

I think = that is=20 exactly right, Bill; better distribution of fuel=20 spray/vapor.

My custom = manifold=20 blocks them off, as do most alternative manifolds.  Apparently = they are=20 not an issue for the rpms we are interested in.

 

Al

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