X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from hub026-NJ-6.exch026.serverdata.net ([206.225.166.169] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 6853047 for flyrotary@lancaironline.net; Wed, 30 Apr 2014 11:32:03 -0400 Received-SPF: none receiver=logan.com; client-ip=206.225.166.169; envelope-from=jwhaley@datacast.com Received: from MBX026-E1-NJ-2.exch026.domain.local ([10.240.14.52]) by HUB026-NJ-6.exch026.domain.local ([10.240.14.230]) with mapi id 14.03.0174.001; Wed, 30 Apr 2014 08:31:26 -0700 From: Jeff Whaley To: Rotary motors in aircraft Subject: RE: [FlyRotary] SWITCHEROO becomes low oil pressure Thread-Topic: RE: [FlyRotary] SWITCHEROO becomes low oil pressure Thread-Index: Ac9kiT8K8ie3zy39T0Wkvjz4E3eU+A== Date: Wed, 30 Apr 2014 15:31:25 +0000 Message-ID: <234B758DE9A64449BEB6BB5D1345CA7A3617B5BE@mbx026-e1-nj-2.exch026.domain.local> Accept-Language: en-CA, en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [209.87.232.162] Content-Type: multipart/related; boundary="_005_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_"; type="multipart/alternative" MIME-Version: 1.0 --_005_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_ Content-Type: multipart/alternative; boundary="_000_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_" --_000_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Your oil leak could be anywhere; however, my oil-fill cap has a hole drille= d in it and the little vent tube goes nowhere, i.e., open to the engine com= partment; never leaked a drop; just lets off steam. I did have an annoying oil leak that required a mild cleaning after every 2= hours - turned out to be the main seal - this seal was compromised by a ni= cely-painted counter weight; after the paint wore off and the seal was repl= aced there was no more oil leak. Jeff From: shipchief@aol.com Subject: SWITCHEROO becomes low oil pressure Date: Tue, 29 Apr 2014 21:42:09 -0400 (EDT) To: flyrotary@lancaironline.net [Message Header] [Undecoded Message] I enjoyed a nice 1.2 hour flight yesterday, but ended with oil or exhaust s= mell. Never a good thing, conjuring up images of a fuel fire or carbon mono= xide poisoning. Today I gave it another routine cowl raising inspection, and noticed the us= ual oil film. It's everywhere, and comes from no-where. It was cooking off = from the under slung muffler. I wiped it off, and I think the culprit is th= e crankcase vent from the oil fill tube. I had to shorten the tube so it wo= uld fit under the cowl. Now the vent line is pretty low, just over the cent= er iron into which the oil tube fits. It discharges thru a tube and hose ar= rangement to the right side of the cowl outlet on the bottom. I think the a= irflow in this area is turbulent and sometimes back flows into the cowl and= spreads all over. I added another heat shield to keep the radiant glow of the exhaust system = off of the fuel system. I also noticed the throttle opened about 40 degrees shy of full open. So I = adjusted the cable lock nuts to give more; however, the throttle is suffici= ently oversized that it didn't make an appreciable difference. After a joyful morning of small improvements and cleaning, I decided to mak= e an hour flight, have some lunch and do a second hour flight. Well, that was arrogant of me. I made it about 30 minutes and noticed the o= il pressure had dropped from 62 or better to 38 PSI. Water & oil temps were= in the 160F& 170F zone. So I headed for the nearest airport and slowed 'wa= y down. The oil pressure increased to 39-42, so I eased it on home. Off wit= h the cowl, oil checks full, everything on the outside of the engine looks = good. I got a mechanical oil pressure gauge, and yes, 40 PSI at the oil fil= ter housing, while reading 39 PSI on the Engine Monitor. I'm stripping the 'front' cover off, expecting to find the famous oil O rin= g blown....Maybe I should have used larger diameter oil discharge hose... The bolt that takes the 19mm socket on the pulley hub defeated me this even= ing. I hope it's not a left hand thread...I'll continue tomorrow. This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal= records. Please then delete the original message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Your oil leak could be anywhere; however, my oil-fil= l cap has a hole drilled in it and the little vent tube goes nowhere, i.e.,= open to the engine compartment; never leaked a drop; just lets off steam.<= o:p>

I did have an annoying oil leak that required a mild= cleaning after every 2 hours – turned out to be the main seal –= ; this seal was compromised by a nicely-painted counter weight; after the p= aint wore off and the seal was replaced there was no more oil leak.

Jeff

 

From:

shipchief@aol.com<= /p>

Subject:

SWITCHEROO becomes low oil pressure<= o:p>

Date:

Tue, 29 Apr 2014 21:42:09 -0400 (EDT= )

To:

flyrotary@lancaironline.net

3D"Message

I enjoyed a nice 1.2 hour fli= ght yesterday, but ended with oil or exhaust smell. Never a good thing, con= juring up images of a fuel fire or carbon monoxide poisoning.

Today I gave it another routi= ne cowl raising inspection, and noticed the usual oil film. It's everywhere= , and comes from no-where. It was cooking off from the under slung muffler. I wiped it off, and I think the culprit is the crankcase ve= nt from the oil fill tube. I had to shorten the tube so it would fit under = the cowl. Now the vent line is pretty low, just over the center iron into w= hich the oil tube fits. It discharges thru a tube and hose arrangement to the right side of the cowl outlet on t= he bottom. I think the airflow in this area is turbulent and sometimes back= flows into the cowl and spreads all over.

I added another heat shi= eld to keep the radiant glow of the exhaust system off of the fuel sys= tem.

I also noticed the throttle o= pened about 40 degrees shy of full open. So I adjusted the cable lock nuts = to give more; however, the throttle is sufficiently oversized that it didn't make an appreciable difference.

After a joyful morning of sma= ll improvements and cleaning, I decided to make an hour flight, have some l= unch and do a second hour flight.

Well, that was arrogant of me= . I made it about 30 minutes and noticed the oil pressure had dropped from = 62 or better to 38 PSI. Water & oil temps were in the 160F& 170F zone. So I headed for the nearest airport and slowed 'way d= own. The oil pressure increased to 39-42, so I eased it on home. Off with t= he cowl, oil checks full, everything on the outside of the engine looks goo= d. I got a mechanical oil pressure gauge, and yes, 40 PSI at the oil filter housing, while reading 39 PSI on th= e Engine Monitor.

I'm stripping the 'front' cov= er off, expecting to find the famous oil O ring blown....Maybe I should hav= e used larger diameter oil discharge hose...

The bolt that takes the 19mm = socket on the pulley hub defeated me this evening. I hope it's not a left h= and thread...I'll continue tomorrow.

 

This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal records. Please then delete the origin= al message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_-- --_005_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_ Content-Type: image/gif; name="image001.gif" Content-Description: image001.gif Content-Disposition: inline; filename="image001.gif"; size=849; creation-date="Wed, 30 Apr 2014 15:31:25 GMT"; modification-date="Wed, 30 Apr 2014 15:31:25 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAINgDxCRw4 EAC+fwgTIjT4DwCAAwIXHlSYkKHDhxEZUpTYEONEjRstOoR4ECRFkSQ5bux4saXDgAA7 --_005_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_ Content-Type: image/gif; name="image002.gif" Content-Description: image002.gif Content-Disposition: inline; filename="image002.gif"; size=857; creation-date="Wed, 30 Apr 2014 15:31:25 GMT"; modification-date="Wed, 30 Apr 2014 15:31:25 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAIPgDxCRw4 EAC+fwcQKjxgMCHDhAD+GUQYEcDDhhIzVjwIkSJDfA8zQjxYUWRDixVHmnSI0aHCiS5ZAphJs2ZA ADs= --_005_234B758DE9A64449BEB6BB5D1345CA7A3617B5BEmbx026e1nj2exch_--