X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fmailhost02.isp.att.net ([204.127.217.102] verified) by logan.com (CommuniGate Pro SMTP 5.2.5) with ESMTP id 3039543 for flyrotary@lancaironline.net; Wed, 23 Jul 2008 21:26:30 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.102; envelope-from=keltro@att.net Received: from fwebmail01.isp.att.net ([204.127.218.101]) by isp.att.net (frfwmhc02) with SMTP id <20080724012551H02000u598e>; Thu, 24 Jul 2008 01:25:52 +0000 X-Originating-IP: [204.127.218.101] Received: from [64.250.200.51] by fwebmail01.isp.att.net; Thu, 24 Jul 2008 01:25:50 +0000 From: "Kelly Troyer" To: "Rotary motors in aircraft" Subject: Sealing oil pan motor mount hole Date: Thu, 24 Jul 2008 01:25:50 +0000 Message-Id: <072420080125.27379.4887DA1E0000919900006AF322218865869B0A02D29B9B0EBF019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Jun 10 2008) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_27379_1216862750_0" --NextPart_Webmail_9m3u9jl4l_27379_1216862750_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Keith, Determine the thickness of the spacer needed (washers, alum, etc) with the correct size of hole for bolt......JB Weld or Super Glue inside the pan (over bolt hole)......Temp. mount pan........Borrow or buy a "Duplicating Punch" of approx same diameter as bolt ( "Harbor Freight" has cheap sets in inch sizes up to 1/2").........One of these should be close enough to the metric bolt size (12 or 14mm I think).........Insert punch into pan hole (spacer is to keep punch at 90 degrees to the "CCI" plate.........Give punch a good rap with a hammer to put a center punch mark on the "CCI" plate.........Remove pan and carefully drill plate slightly larger than bolt diameter.........Go slowly so as not to mess up threads in the center housing (should you get a thread or two a metric tap will clean it up........If spacer pops off pan when using punch reglue in place........Reinstall pan and seal it up.......Install large pan bolt and sealing washer........Should work........... -- Kelly Troyer "Dyke Delta"_13B ROTARY Engine "RWS"_RD1C/EC2/EM2 "Mistral"_Backplate/Oil Manifold ktradcliff@comcast.net The washers sound like an excellent idea Kelly and most likely will work, however there might be an issue with keeping everything lined up and in place. It might not be to much of a problem on an engine stand with the engine upside down (note: it might not) but with the engine mounted in a flying aircraft with the engine right side up there will be a problem. Maybe some kind of bushing will work; but again lining it up. Engine stand upside down easy, right side up problem. Suggestions Please --NextPart_Webmail_9m3u9jl4l_27379_1216862750_0 Content-Type: multipart/related; boundary="NextPart_Webmail_9m3u9jl4l_27379_1216862750_1" --NextPart_Webmail_9m3u9jl4l_27379_1216862750_1 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Keith,

Determine the thickness of the spacer ne= eded (washers, alum, etc) with the correct size

of hole for bolt......JB Weld or Super Glue inside the pan (over = bolt hole)......Temp. mount

pan........Borrow or buy a "Duplicating Punch" of approx same diameter= as bolt ( "Harbor

Freight" has cheap sets in inch sizes up to 1/2").........One of these= should be close enough

to the metric bolt size (12 or 14mm I think).........Insert punch into= pan hole (spacer is to

keep punch at 90 degrees to the "CCI" plate.........Give punch a good = rap with a hammer

to put a center punch mark on the "CCI" plate.........Remove pan and c= arefully drill plate

slightly larger than bolt diameter.........Go slowly so as not to mess= up threads in the center

housing (should you get a thread or two a metric tap will clean it up.= .......If spacer pops

off pan when using punch reglue in place........Reinstall pan and seal= it up.......Install large

pan bolt and sealing washer........Should work...........

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engin= e
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

ktradcliff@comcast.net

The washers sound like an excellent idea Kelly a= nd most likely will work,
however there might be an issue with ke= eping everything lined up and in place.
It might not be to much o= f a problem on an engine stand with the engine upside
down (note: it mi= ght not) but with the engine mounted in a flying aircraft with
the engi= ne right side up there will be a problem. Maybe some kind of bushing =
will work; but again lining it up. Engine stand upside down easy,= right side
up problem. Suggestions Please

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