Return-Path: Received: from r1.name2host.com ([64.35.113.48] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with SMTP id 3177272 for flyrotary@lancaironline.net; Sun, 18 Apr 2004 12:41:25 -0400 Received: (qmail 25568 invoked from network); 18 Apr 2004 16:41:24 -0000 Received: from adsl-216-101-149-124.dsl.snfc21.pacbell.net (HELO rapunzel) (fly@bewersdorff.com@216.101.149.124) by r1.name2host.com with SMTP; 18 Apr 2004 16:41:24 -0000 From: "Marko Bewersdorff" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Cooling Problem Identified Date: Sun, 18 Apr 2004 09:36:38 -0700 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0049_01C42528.A63FB8D0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 This is a multi-part message in MIME format. ------=_NextPart_000_0049_01C42528.A63FB8D0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit This is just theory, brain storm or brain fart - you're the judge. One thought: Flush with a solvent that binds with water, and evaporates easily, and that doesn't eat up the internal seals. So perhaps a flushing with denat. alcohol or avgas prior to blowing the case dry with compressed air will remove a lot of water. Alternative two. Take the engine case into a sauna and let it heat up for long enough so that steam escapes. All right alternative 2 wasn't that serious. Memory is fuzzy on this one but I recall, running pure antifreeze is a corrosion problem. Marko -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of Russell Duffy Sent: Sunday, April 18, 2004 8:38 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Cooling Problem Identified And I suggest that even using that drain plug is not enough. For this tear-down I used that drain until it wouldn't drain anymore. Then I still got out copious amounts of coolant at various stages of disassembly. I am not sure what the best procedure is. David Leonard I'm thinking that using the drain, along with rocking the engine forward and back, would get most of the coolant out. In your case, the rust is plugging up the holes, and making it hard to drain coolant that's above the rust level. Does anyone know of a good preservative that could be used to fill the coolant passages? How about just straight anti-freeze? You wouldn't want to use something like oil, since it would be hard to clean out. Cheers, Rusty ------=_NextPart_000_0049_01C42528.A63FB8D0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

This=20 is just theory, brain storm or brain fart - you're the=20 judge.

One=20 thought: Flush with a solvent that binds with water, and evaporates = easily, and=20 that doesn't eat up the internal seals.

So=20 perhaps a flushing with denat. alcohol or avgas prior to blowing the = case dry=20 with compressed air will remove a lot of water.

Alternative two. Take the engine case into a sauna and let = it heat=20 up for long enough so that steam escapes.

All=20 right alternative 2 wasn't that serious.

Memory=20 is fuzzy on this one but I recall, running pure antifreeze is a = corrosion=20 problem.

Marko

-----Original Message-----
From: Rotary motors in = aircraft=20 [mailto:flyrotary@lancaironline.net]On Behalf Of Russell=20 Duffy
Sent: Sunday, April 18, 2004 8:38 AM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Cooling Problem=20 Identified

And I = suggest that=20 even using that drain plug is not enough. For this tear-down I = used that=20 drain until it wouldn’t drain anymore. Then I still got = out copious=20 amounts of coolant at various stages of disassembly. I am not = sure what=20 the best procedure is.

David=20 Leonard

I'm thinking = that using=20 the drain, along with rocking the engine forward and back, would get = most of=20 the coolant out. In your case, the rust is plugging up the = holes, and=20 making it hard to drain coolant that's above the rust=20 level.

Does anyone = know of a=20 good preservative that could be used to fill the coolant = passages? =20 How about just straight anti-freeze? You wouldn't want to = use=20 something like oil, since it would be hard to clean=20 out.

Cheers,

Rusty =20

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