Return-Path: Received: from mailout1.pacific.net.au ([61.8.0.84] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 592868 for flyrotary@lancaironline.net; Wed, 05 Jan 2005 21:03:45 -0500 Received-SPF: none receiver=logan.com; client-ip=61.8.0.84; envelope-from=peon@pacific.net.au Received: from mailproxy1.pacific.net.au (mailproxy1.pacific.net.au [61.8.0.86]) by mailout1.pacific.net.au (8.12.3/8.12.3/Debian-7.1) with ESMTP id j0623CA6019062 for ; Thu, 6 Jan 2005 13:03:12 +1100 Received: from ar1 (ppp2027.dyn.pacific.net.au [61.8.32.39]) by mailproxy1.pacific.net.au (8.12.3/8.12.3/Debian-7.1) with SMTP id j0623Aj8000868 for ; Thu, 6 Jan 2005 13:03:10 +1100 Message-ID: <003401c4f393$b90919e0$2720083d@ar1> From: "Leon" To: "Rotary motors in aircraft" Subject: More on Corrosion in Stored Engines. Date: Thu, 6 Jan 2005 13:02:04 +1100 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0031_01C4F3EF.EB9154C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 This is a multi-part message in MIME format. ------=_NextPart_000_0031_01C4F3EF.EB9154C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Guys, Something I forgot to mention. Another way of inhibiting the internal = water galleries of an engine that is to be left for considerable periods = of time, is to use machinist's soluable oil (you know, the milky = coolant stuff you see on lathes and mills). In daze of old when knights = were bold, (and back when blokes wore hats), soluable oil was "The = G-O" to prevent corrosion in cooling systems.=20 It's only foible was that it would soften rubber hoses after a while, = so you had to change them on a regular basis, otherwise disaster would = strike (usually on a hot day going up a hill) as surely as Granny Smith = Apples are green. But it certainly prevented the formation of that = turbid orange/brown slurry in radiators and blocks that often = masquerades as cooling fluid!! One of my mentors, Ray, was fanatical about lubricants and maintenence = - he was, at the time, Maintenence Superintendent for a sugar refining = company. He was responsible for looking after all the bulk handling = cranes, front end loaders, and all the bulk handling & delivery = trucks. One of Ray's cars was an absolutely immaculate black '37 Dodge, = and when he finally overhauled the engine after some 300,000 + miles = and 35 years, (the crank case breather was getting a bit fumey), the = cooling passages and the rad core, thanks to the soluable oil and = regular flushing, were as clean as my cat's whiskers. This (soluable oil - not the cat's whiskers) will have the same effect = as the soap solution (but it doesn't froth!!). Both exclude air from = the metal surfaces to inhibit oxidation and galvanic corrosion. As the = water evaporates from the passages, it leaves a thin film of the oil = itself. Where the water cannot get out, it still does its trick like = it does on machine tools. Cheers, Leon ------=_NextPart_000_0031_01C4F3EF.EB9154C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi Guys,

Something I forgot to mention. = Another way of=20 inhibiting the internal water galleries of an engine that is to be left = for=20 considerable periods of time, is to use machinist's soluable oil = (you=20 know, the milky coolant stuff you see on lathes and mills). = In daze=20 of old when knights were bold, (and back when blokes wore hats),=20 soluable oil was "The G-O" to prevent corrosion in cooling=20 systems.

It's only foible was that it would = soften rubber=20 hoses after a while, so you had to change them on a regular = basis, =20 otherwise disaster would strike (usually on a hot day going up a = hill) as=20 surely as Granny Smith Apples are green. But it certainly = prevented the=20 formation of that turbid orange/brown slurry in radiators and = blocks that=20 often masquerades as cooling fluid!!

One of my mentors, Ray, was = fanatical=20 about lubricants and maintenence - he was, at the time, = Maintenence=20 Superintendent for a sugar refining company. He was = responsible for=20 looking after all the bulk handling cranes, front end = loaders, and=20 all the bulk handling & delivery trucks. One of Ray's = cars=20 was an absolutely immaculate black '37 Dodge, and when he = finally=20 overhauled the engine after some 300,000 + miles and 35 years, (the = crank=20 case breather was getting a bit fumey), the cooling passages and = the rad=20 core, thanks to the soluable oil and regular flushing, were = as clean=20 as my cat's whiskers.

This (soluable oil - not the cat's=20 whiskers) will have the same effect as the soap solution (but it = doesn't=20 froth!!). Both exclude air from the metal surfaces to inhibit = oxidation and galvanic corrosion. As the water evaporates from the = passages, it leaves a thin film of the oil itself. Where the = water=20 cannot get out, it still does its trick like it does on machine=20 tools.

Cheers,

Leon

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