X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao07.cox.net ([68.230.241.32] verified) by logan.com (CommuniGate Pro SMTP 5.0.8) with ESMTP id 973611 for flyrotary@lancaironline.net; Tue, 07 Feb 2006 13:13:09 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.32; envelope-from=ALVentures@cox.net Received: from BigAl ([68.7.14.39]) by fed1rmmtao07.cox.net (InterMail vM.6.01.05.02 201-2131-123-102-20050715) with ESMTP id <20060207181113.RPND3131.fed1rmmtao07.cox.net@BigAl> for ; Tue, 7 Feb 2006 13:11:13 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: Tension bolt coolant leak; was Torque and torque sequence Date: Tue, 7 Feb 2006 10:12:30 -0800 Message-ID: <000001c62c12$0f8adcb0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C62BCF.016C7EB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C62BCF.016C7EB0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable I have never disassembled a rotary engine, so in my further thinking regarding the coolant drip from around the un-torqued tension bolt; = perhaps someone would clarify something for me - does the tension bolt anywhere = run through the cooling jacket? I had assumed it did (why else are there = seals under the bolt heads, but in looking at photos of housings, and cut-away views, it appears not. Would this mean then that there is/was a leak somewhere between the coolant jacket and the bolt hole? =20 I found no sign of oil in coolant, or coolant in oil; but that probably = does not mean there wasn't some small amount undetected. =20 Al (next time I'll build up my own engine - as though there will be a = next time) ------=_NextPart_000_0001_01C62BCF.016C7EB0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

I have never disassembled a = rotary engine, so in my further thinking regarding the coolant drip from around = the un-torqued tension bolt; perhaps someone would clarify something for me = – does the tension bolt anywhere run through the cooling = jacket?  I = had assumed it did (why else are there seals under the bolt heads, but in looking at = photos of housings, and cut-away views, it appears not.  Would this mean = then that there is/was a leak somewhere between the coolant = jacket and the = bolt hole?

 

I found no sign of oil in = coolant, or coolant in oil; but that probably does not mean there wasn’t some = small amount undetected.

 

Al (next time I’ll build up = my own engine – as though there will be a next time)

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