X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ispmxfep08-srv.windstream.net ([166.102.165.177] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3860201 for flyrotary@lancaironline.net; Sun, 20 Sep 2009 11:06:16 -0400 Received-SPF: pass receiver=logan.com; client-ip=166.102.165.177; envelope-from=montyr2157@windstream.net Received: from newbox ([98.20.249.60]) by ispmxfep08-srv.windstream.net with ESMTP id <20090920150539.FGGK7009.ispmxfep08-srv.windstream.net@newbox> for ; Sun, 20 Sep 2009 10:05:39 -0500 Message-ID: From: "MONTY ROBERTS" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Another mixed day out at the hangar Date: Sun, 20 Sep 2009 10:05:30 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001C_01CA39D9.E2800E50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5843 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Authentication-Info: Submitted using SMTP AUTH LOGIN at ispmxfep08-srv.windstream.net from [98.20.249.60] using ID montyr2157 at Sun, 20 Sep 2009 10:05:39 -0500 X-Cloudmark-Analysis: v=1.0 c=1 a=IQrxY8xNwukA:10 a=82mSB0//c+BQGptipqi71A==:17 a=urbMV8RPtgUNdc7Mcb8A:9 a=WSo6ABpJT2k7Kc9cByPbuL6JY0YA:4 a=CU2BRrX7YuehJDekNJIA:9 a=ggNCBvvjfawVNErMipkA:7 a=BjdiSRHEictf0A6lxQITvieZZLMA:4 This is a multi-part message in MIME format. ------=_NextPart_000_001C_01CA39D9.E2800E50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The first bad news is that I replaced my romote oil filter mount and = installed a new filter. As I have mentioned here I have had it leaking = at the rubber filter seal. The old one looked ok, but since replacing = the filters no less than three times and knowing that the eye cannot see = all inperfections, I replaced the mount AND filter (K&N 2004 filter). = But, NO JOY. It is still leaking where the filter mounts. It IS seeping = from the filter seal and NOT the two hose connections...no doubt on = this. I know the rotary's oil pressure is higher than other engines but = I would not think it would be so much that it is overwhelming this = standard mount and seal. This is just a standard screw on remote oil = mount made out of AL...Made in the USA. Looks like many others I have = seen. Y'all have any ideas. =20 Chris, When I was much younger, and much more foolish, I had a 66 mustang = fastback with all the go fast additions. The engine was lowered in the = frame and moved back a ways to help the weight distribution. Doing so = required a remote mount oil filter. I had a terrible time with leaks. = There was no internet at the time, and info was hard to come by, = especially in BFA.....(a popular derogatory phrase involving the = substitution of Arkansas for Egypt). Eventually I figured out that the = problem was the fittings not the oil filter. I had NAS type fittings and = braided lines from the block to the filter mount. The filter mount had = female NPT threads. Being that I was a perpetually poor kid, I used some = brass hardware store fittings for the pipe thread to NAS joints. Two = problems: Pipe threads are terrible and I hate Teflon tape because it is = a pain in the ass, leaks, and the shreds can get into delicate stuff and = clog/break things. The second problem was that although the NAS fittings = will thread onto the hardware store fittings, the tapers are = incompatible and will not seal adequately. The solution was to get = proper NAS fittings and to use a good high quality PTFE based pipe dope. = Pipe dope is messy, but it is one of the best things I ever discovered. = It always seals the first time, and will simply dissolve into hydraulic = fluid or oil and will not harm or clog anything.=20 I had thought the casting was bad or something, but the seep was only = happening when the engine was warm and the oil was thin. It was small = and drained down into the filter/seal area and by the time I looked at = it the evidence of the seep was gone..... Check carefully when the = engine/oil is warm and have somebody rev the engine while you look very = carefully at the area around the fittings with a bright light. I HATE TEFLON TAPE!!!! I HATE PIPE THREADS!!! I never got a ticket in that car (which is a minor miracle), but your = brothers in blue used to pull me over constantly just to look at the = car. Good luck. Monty ------=_NextPart_000_001C_01CA39D9.E2800E50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
 
 
The first bad news is that = I replaced my=20 romote oil filter mount and installed a new filter.  As I have = mentioned=20 here I have had it leaking at the rubber filter seal.  The old = one looked=20 ok, but since replacing the filters no less than three times and = knowing=20 that the eye cannot see all inperfections, I replaced the mount AND = filter=20 (K&N 2004 filter).  But, NO JOY. It is still leaking where = the filter=20 mounts.  It IS seeping from the filter seal and NOT the two hose=20 connections...no doubt on this.  I know the rotary's oil pressure = is=20 higher than other engines but I would not think it would be so much = that it is=20 overwhelming this standard mount and seal.  This is just a = standard screw=20 on remote oil mount made out of AL...Made in the USA.  Looks like = many=20 others I have seen.  Y'all have any ideas. 
 
 
Chris,
 
When I was much younger, and much more = foolish, I=20 had a 66 mustang fastback with all the go fast additions. The = engine was=20 lowered in the frame and moved back a ways to help the weight = distribution.=20 Doing so required a remote mount oil filter. I had a terrible time with = leaks.=20 There was no internet at the time, and info was hard to come by, = especially in=20 BFA.....(a popular derogatory phrase involving the substitution of = Arkansas for=20 Egypt). Eventually I figured out that the problem was the fittings not = the oil=20 filter. I had NAS type fittings and braided lines from the block to the = filter=20 mount. The filter mount had female NPT threads. Being that I was a = perpetually=20 poor kid, I used some brass hardware store fittings for the pipe thread = to NAS=20 joints. Two problems: Pipe threads are terrible and I hate Teflon tape = because=20 it is a pain in the ass, leaks, and the shreds can get into delicate = stuff and=20 clog/break things. The second problem was that although the NAS fittings = will=20 thread onto the hardware store fittings, the tapers are incompatible and = will=20 not seal adequately. The solution was to get proper NAS fittings and to = use a=20 good high quality PTFE based pipe dope. Pipe dope is messy, but it is = one of the=20 best things I ever discovered. It always seals the first time, and will = simply=20 dissolve into hydraulic fluid or oil and will not harm or clog anything. =
 
I had thought the casting was bad or = something, but=20 the seep was only happening when the engine was warm and the oil was = thin. It=20 was small and drained down into the filter/seal area and by the time I = looked at=20 it the evidence of the seep was gone..... Check carefully when the = engine/oil is=20 warm and have somebody rev the engine while you look very carefully at = the area=20 around the fittings with a bright light.
 
I HATE TEFLON TAPE!!!!
 
I HATE PIPE THREADS!!!
 
I never got a ticket in that car (which = is a minor=20 miracle), but your brothers in blue used to pull me over constantly just = to look=20 at the car.
 
Good luck.
 
Monty
 
 
 
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