Return-Path: Received: from fed1rmmtao07.cox.net ([68.230.241.32] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP id 3179929 for flyrotary@lancaironline.net; Tue, 20 Apr 2004 02:14:24 -0400 Received: from Leonards ([68.111.224.107]) by fed1rmmtao07.cox.net (InterMail vM.6.01.03.02 201-2131-111-104-20040324) with ESMTP id <20040420061419.UEJX16183.fed1rmmtao07.cox.net@Leonards> for ; Tue, 20 Apr 2004 02:14:19 -0400 From: "David Leonard" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Engine storage Date: Mon, 19 Apr 2004 23:14:55 -0700 Message-ID: <003901c4269e$cd06ce00$6be06f44@Leonards> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_003A_01C42664.20A7F600" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: Importance: Normal This is a multi-part message in MIME format. ------=_NextPart_000_003A_01C42664.20A7F600 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dean, My rust was almost all black, not red. If you are going to tear it down someday anyway, may as well do it now and perhaps prevent some continued damage. Good luck. =20 David Leonard The Rotary Roster: http://members.aol.com/_ht_a/rotaryroster/index.html -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dean Head Sent: Monday, April 19, 2004 7:29 PM To: Rotary motors in aircraft Subject: [FlyRotary] Engine storage =20 Group/Rusty, We=92ll after seeing David=92s post on the corrosion issue I became = paranoid about my engine. I bought one of the =93generator=94 engines from RX-7 Specialties (from a previous member of the group). Never giving a thought about water being in the bottom of the engine due to the fact that it had been ported and appeared to be preserved (i.e. I could see a fair amount of transmission fluid thru the exhaust ports). Due to the machine work done the engine it would have to have been disassembled. Also, there was evidence of the gray sealer being used extensively. It does not appear to have been run post the modifications. =20 Well cut to the chase=85I removed the bottom plug on the center housing and what did I find! Damp black =93stuff=94. I investigated with a = q-tip, damp black stuff no water. I inserted a dowel in the hole and more damp black stuff. After poking at it for a bit I rolled the engine on its side and out came maybe a =BD oz or so of clear water and black stuff (nothing reddish). Looking into the rest of the water jacket ports no moisture just a bit of red rust like you would see in any engine. =20 So, think I should disassemble it now and see what the deal is? I intended to disassemble and install Tracy=92s apex seals in place of the ceramics. But I had thought to wait until I=92m ready to attach it to = the Cozy. (quite a while in the future). I suppose I could tear it down and then pickle it in oil until I=92m finally ready to reassemble and run = the engine. I would never feel comfortable flying it without a through internal inspection anyway. =20 I wonder if the water came from internal condensation over the past 3 years? It is stored in my shop which is not air conditioned. =20 Thoughts? =20 Thanks, Dean Head Cozy MK4 BKV FL =20 ------=_NextPart_000_003A_01C42664.20A7F600 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Dean, My rust was almost all black, = not red.=A0 If you are going to tear it down someday anyway, may as well do = it now and perhaps prevent some continued damage.=A0 Good = luck.

David Leonard

The Rotary = Roster:

http://memb= ers.aol.com/_ht_a/rotaryroster/index.html

-----Original Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Dean Head
Sent: Monday, April 19, = 2004 7:29 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] = Engine storage

Group/Rusty,

We’ll after seeing David’s post on the = corrosion issue I became paranoid about my engine. I bought one of the “generator” engines from RX-7 Specialties (from a previous = member of the group). Never giving a thought about water being in the bottom of = the engine due to the fact that it had been ported and appeared to be = preserved (i.e. I could see a fair amount of transmission fluid thru the exhaust ports). = Due to the machine work done the engine it would have to have been = disassembled. Also, there was evidence of the gray sealer being used extensively. It does = not appear to have been run post the modifications.

Well cut to the chase…I removed the bottom plug = on the center housing and what did I find! Damp black “stuff”. I investigated with a q-tip, damp black stuff no water. I inserted a dowel = in the hole and more damp black stuff. After poking at it for a bit I rolled = the engine on its side and out came maybe a =BD oz or so of clear water and = black stuff (nothing reddish). Looking into the rest of the water jacket ports = no moisture just a bit of red rust like you would see in any = engine.

So, think I should disassemble it now and see what = the deal is? I intended to disassemble and install Tracy’s apex seals in = place of the ceramics. But I had thought to wait until I’m ready to attach = it to the Cozy. (quite a while in the future). I suppose I could tear it down = and then pickle it in oil until I’m finally ready to reassemble and = run the engine. I would never feel comfortable flying it without a through = internal inspection anyway.

I wonder if the water came from internal condensation = over the past 3 years? It is stored in my shop which is not air = conditioned.

Thoughts?

Thanks,

Dean Head

Cozy MK4

BKV FL

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