X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sun, 01 Dec 2013 19:02:04 -0500 Message-ID: X-Original-Return-Path: Received: from mail-yh0-f52.google.com ([209.85.213.52] verified) by logan.com (CommuniGate Pro SMTP 6.0.7) with ESMTPS id 6621027 for lml@lancaironline.net; Sun, 01 Dec 2013 11:23:13 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.213.52; envelope-from=pjdmiller@gmail.com Received: by mail-yh0-f52.google.com with SMTP id i72so8089791yha.11 for ; Sun, 01 Dec 2013 08:22:37 -0800 (PST) X-Received: by 10.236.81.237 with SMTP id m73mr52228588yhe.29.1385914957133; Sun, 01 Dec 2013 08:22:37 -0800 (PST) X-Original-Return-Path: Received: from pjdms-mbp.cfl.rr.com ([68.202.59.203]) by mx.google.com with ESMTPSA id v45sm119085662yha.2.2013.12.01.08.22.36 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 01 Dec 2013 08:22:36 -0800 (PST) From: Paul Miller Content-Type: multipart/alternative; boundary="Apple-Mail=_981D99F5-9812-4F76-B240-A5D9B01866F7" X-Original-Message-Id: <19054F95-EF88-449F-805D-22031D9824EE@gmail.com> Mime-Version: 1.0 (Mac OS X Mail 6.5 \(1508\)) Subject: Re: [LML] Re: Removing underbelly CRUD X-Original-Date: Sun, 1 Dec 2013 11:22:35 -0500 References: X-Original-To: "Lancair Mailing List" In-Reply-To: X-Mailer: Apple Mail (2.1508) --Apple-Mail=_981D99F5-9812-4F76-B240-A5D9B01866F7 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii My experience with the old formulation of Simple Green caused my fingers = to split open with wounds that lasted weeks. The reaction was not = immediate so the cause wasn't easy to find. For corrosion issues, I = recall the US Air Force stopped using the original product and when we = heard that, my own coupon tests did show corrosion as well. I have not = used the newest Simple Green. I have Zep Aircraft Cleaner but that is = very alkaline and still requires caution and thorough rinsing and Zep = advises using pH markers to confirm the success of rinsing. That = should tell you something. I only use that on the toughest exhaust areas = by hand spray. Simple Green wrote that brief exposure and proper rinsing is not a risk = to GA users. I think that applies to almost all the products mentioned = here whether purple, green or citrus. Casual spraying and cleaning by = hand is not a big risk from what I've read. The problem comes from = repeated pressure washing and having those solutions forced into = bearings and into areas such as rivets and metal overlaps where the = rinse would not reach. Never pressure wash is a safe rule. And, if = you pressure wash weekly, you will likely have problems 10-20 years down = the road. My cleaning process uses dish soap and water for the majority of = cleaning (turbine and piston) targeting a 2x2 foot area at a time. I = use the Zep for the greyest exhaust on the belly of the Legacy (after = too many hours between cleanings). My hangar mate typically cleans his = after every flight and it is a simple wipe down for him with a household = spray cleaner. > Scrubbing Bubbles > =20 > In a message dated 11/30/2013 9:04:33 P.M. Central Standard Time, = N4ZQ@verizon.net writes: > Any suggestions here for a good solution to removing exhaust crud? >=20 > Thanks, >=20 > Angier Ames >=20 > -- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html --Apple-Mail=_981D99F5-9812-4F76-B240-A5D9B01866F7 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii

My experience with the old formulation of = Simple Green caused my fingers to split open with wounds that lasted = weeks. The reaction was not immediate so the cause wasn't easy to = find. For corrosion issues, I recall the US Air Force stopped = using the original product and when we heard that, my own coupon tests = did show corrosion as well. I have not used the newest Simple = Green. I have Zep Aircraft Cleaner but that is very alkaline and = still requires caution and thorough rinsing and Zep advises using pH = markers to confirm the success of rinsing. That should tell you = something. I only use that on the toughest exhaust areas by hand = spray.

Simple Green wrote that brief exposure = and proper rinsing is not a risk to GA users. I think that applies = to almost all the products mentioned here whether purple, green or = citrus. Casual spraying and cleaning by hand is not a big risk = from what I've read. The problem comes from repeated pressure = washing and having those solutions forced into bearings and into areas = such as rivets and metal overlaps where the rinse would not reach. = Never pressure wash is a safe rule. And, if you pressure = wash weekly, you will likely have problems 10-20 years down the = road.

My cleaning process uses dish soap and = water for the majority of cleaning (turbine and piston) targeting a 2x2 = foot area at a time. I use the Zep for the greyest exhaust on the = belly of the Legacy (after too many hours between cleanings). My = hangar mate typically cleans his after every flight and it is a simple = wipe down for him with a household spray = cleaner.

Scrubbing Bubbles

In a message dated 11/30/2013 9:04:33 P.M. Central Standard Time,=20= N4ZQ@verizon.net writes:

Any=20 suggestions here for a good solution to removing exhaust=20 crud?

Thanks,

Angier Ames

--
For archives and = unsub=20 http://mail.= lancaironline.net:81/lists/lml/List.html
=

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