X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-2.exch003intermedia.net ([207.5.74.29] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTPS id 3553639 for flyrotary@lancaironline.net; Fri, 20 Mar 2009 08:09:43 -0400 Received-SPF: none receiver=logan.com; client-ip=207.5.74.29; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-2.exch003intermedia.net ([207.5.74.29]) with mapi; Fri, 20 Mar 2009 05:08:33 -0700 From: Jeff Whaley To: Rotary motors in aircraft Date: Fri, 20 Mar 2009 05:09:05 -0700 Subject: RE: [FlyRotary] Re: It's Quiet Thread-Topic: [FlyRotary] Re: It's Quiet Thread-Index: AcmpAhNCSVyJIewhTROx7QW40jHSBgAUKFqA Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_C03ABB0A7362B84BB53D544B3C305E0ED1498DC5B0EXVMBX0035exc_" MIME-Version: 1.0 --_000_C03ABB0A7362B84BB53D544B3C305E0ED1498DC5B0EXVMBX0035exc_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Steve, the string idea is a good tip. Sounds like no one is voting for the gasket, favoring Ultra-Grey sealant. S= ince I've already paid for the gasket (can't return it) I'll use it if not = too thick. Originally I put the pan on with bolts just snug, allowed silicone to set f= or 24 hours then tightened them. My oil pan is modified - with the indentat= ion for inner mounting bolt removed and an external cover panel allowing fo= r more oil. It is leaking just behind the two large (10mm?) mounting bolts = and not at the rear edge ... maybe there is a slight warp or imperfection f= rom the modification. Jeff From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Steven Boese Sent: Thursday, March 19, 2009 10:17 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: It's Quiet All, For what it is worth, I had a slow oil leak between the oil pan or the bloc= k and the mounting plate the first time I assembled it in spite of cleaning= the surfaces well. The second time I put things together, after cleaning = all the mating surfaces several times with brake cleaner, I embedded a ligh= t cotton string in the Ultra-Grey on both sides of the mounting plate. Thi= s allowed me to tighten the oil pan bolts without squeezing out all the sea= lant from the joint. This would be somewhat similar to the use of a silk t= hread between the case halves on a conventional aircraft engine. I realiz= e that this is a limited data set (one instance) but at least I don't have = oil leaks in this area so far. Steve Boese RV6A, 13B NA, EC2, RD1A --_000_C03ABB0A7362B84BB53D544B3C305E0ED1498DC5B0EXVMBX0035exc_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Steve, the string idea is a good tip.

Sounds like no one is voting for the gasket, favoring Ultra-= Grey sealant. Since I’ve already paid for the gasket (can’t return i= t) I’ll use it if not too thick.

 

Originally I put the pan on with bolts just snug, allowed silicone to set for 24 hours then tightened them. My oil pan is modified - = with the indentation for inner mounting bolt removed and an external cover panel allowing for more oil. It is leaking just behind the two large (10mm?) moun= ting bolts and not at the rear edge … maybe there is a slight warp or imperfection from the modification.

Jeff

 

From: Rotary motors= in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Steven Bo= ese
Sent: Thursday, March 19, 2009 10:17 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: It's Quiet

 

All,

 

For what it is worth, I had a slow oil leak between the oil = pan or the block and the mounting plate the first time I assembled it in spite = of cleaning the surfaces well.  The second time I put things together, af= ter cleaning all the mating surfaces several times with brake cleaner, I embedd= ed a light cotton string in the Ultra-Grey on both sides of the mounting plate.  This allowed me to tighten the oil pan bolts without squeezing= out all the sealant from the joint.  This would be somewhat similar to the= use of a silk thread between the case halves on a conventional  aircraft engine.  I realize that this is a limited data set (one instance) but = at least I don’t have oil leaks in this area so far.

 

Steve Boese

RV6A, 13B NA, EC2, RD1A

 

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