X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.129.170.194] (HELO VIRCOM1.fcdata.private) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5113025 for flyrotary@lancaironline.net; Sat, 03 Sep 2011 18:53:30 -0400 Received-SPF: none receiver=logan.com; client-ip=64.129.170.194; envelope-from=cbarber@texasattorney.net Received: from FCD-MAIL06.FCDATA.PRIVATE ([fe80::697f:d6aa:b87:78d8]) by FCD-MAIL05.FCDATA.PRIVATE ([fe80::809d:a06e:5913:452e%13]) with mapi id 14.01.0323.003; Sat, 3 Sep 2011 17:52:52 -0500 From: Chris Barber To: Rotary motors in aircraft Subject: Update - oil pressure. Thread-Topic: Update - oil pressure. Thread-Index: Acxqij95YfoJF+15TgyZznqzSZvkHQ== Date: Sat, 3 Sep 2011 22:52:55 +0000 Message-ID: <2D41F9BF3B5F9842B164AF93214F3D309DA0249C@FCD-MAIL06.FCDATA.PRIVATE> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [69.148.239.2] Content-Type: multipart/alternative; boundary="_000_2D41F9BF3B5F9842B164AF93214F3D309DA0249CFCDMAIL06FCDATA_" MIME-Version: 1.0 --_000_2D41F9BF3B5F9842B164AF93214F3D309DA0249CFCDMAIL06FCDATA_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable To recap, I had lower oil pressure than I felt comfortable with even though= the engine was running strong. I tried to check/replace the pesky front h= ousing o-ring while in the plane to bad resutls. Apparantly what happened is that when I tried to replace the o-ring, the ro= ller bearing slipped off its little lip and got a little chewed up in the m= inute or two I ran the engine to see if oil pressure was up. Since pressur= e was not up, I decided to remove then engine and have a closer look. When= I did I found the bearing. So, I tore down most the engine and had a clos= er look. While apart I also replaced the front main bearing which was ques= tionable and as y'all may recall, it was bad. Upon closer inspection I determined that my front housing was the later typ= e that also needed the little plastic (silicone) o-ring support. No, not r= eally sure how I missed this as I was aware of the change but only had the = o-ring installed I have not been out at the hangar much this month (too many single women re= lying on me ;-)), however, I was able to flush the parts/system, replace th= e front bearing, both front roller bearings and o-ring and support ring (ev= erything else looks really good) got it all together...again.... added fres= h oil and filter and last night cranked her up. She fired right up (gee, a= fter several times doing this I am starting to get everything lined up and = timed pretty well). Low and behold the oil pressure is the highest I have ever seen on my engin= e. That makes sense since I was apparently forcing oil past the unsupporte= d o-ring. I did not go WOT, but only to about 5000 rpm, I think, and I wa= s getting to the high 80's PSI on a mechanical gage. Finally. Ok, tomorrow starts my weekend so now hopefully to button everything back u= p properly and maybe actually make some progress. Chris Houston EFD Velocity N17010 13b turbo with Tracy's stuff --_000_2D41F9BF3B5F9842B164AF93214F3D309DA0249CFCDMAIL06FCDATA_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

To recap, I had lower oil pressure than I felt comfortable with even tho= ugh the engine was running strong. I tried to check/replace the pesky= front housing o-ring while in the plane to bad resutls .

Apparantly what happened is that when I tried = to replace the o-ring, the roller bearing slipped off its little lip and go= t a little chewed up in the minute or two I ran the engine to see if oil pr= essure was up. Since pressure was not up, I decided to remove then engine and have a closer look. When I d= id I found the bearing. So, I tore down most the engine and had a clo= ser look. While apart I also replaced the front main bearing which wa= s questionable and as y'all may recall, it was bad.

Upon closer inspection I determined that my front housing was the later = type that also needed the little plastic (silicone) o-ring support.&= nbsp; No, not really sure how I missed this as I was aware of the change bu= t only had the o-ring installed

I have not been out at the hangar much this month (too many single women= relying on me ;-)), however, I was able to flush the parts/system, replace= the front bearing, both front roller bearings and o-ring and support ring = (everything else looks really good) got it all together...again.... added fresh oil and filter and last n= ight cranked her up. She fired right up (gee, after several times doi= ng this I am starting to get everything lined up and timed pret= ty well).

Low and behold the oil pressure is the highest I have ever s= een on my engine. That makes sense since I was apparently forcing oil past the unsupported o-ring. I did not go WO= T , but only to about 5000 rpm, I think, and I was getting to the high 80's PSI on = a mechanical gage. Finally.

Ok, tomorrow starts my weekend so now hopefully to button everythin= g back up properly and maybe actually make some progress.

Chris

Houston EFD

Velocity N17010

13b turbo with Tracy's stuff

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