X-Virus-Scanned: clean according to Sophos on Logan.com From: "Bobby J. Hughes" Received: from [66.219.56.245] (HELO mail.qnsi.net) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTP id 7677555 for flyrotary@lancaironline.net; Thu, 07 May 2015 06:23:13 -0400 Received-SPF: pass receiver=logan.com; client-ip=66.219.56.245; envelope-from=bhughes@qnsi.net Received: from 10.0.0.5 ([10.0.0.5]) by qnsi-mail.qnsi.net ([10.0.0.5]) with Microsoft Exchange Server HTTP-DAV ; Thu, 7 May 2015 10:22:39 +0000 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Subject: Re: [FlyRotary] PSRU oil supply and drain References: In-Reply-To: thread-topic: [FlyRotary] PSRU oil supply and drain thread-index: AdCIr77AnTAm3P3LQ4qx/IH5F0/mIQ== Message-ID: Date: Thu, 7 May 2015 06:22:38 -0400 To: "Rotary motors in aircraft" MIME-Version: 1.0 (1.0) Bill A picture would be helpful. I can't think of a reason the oil pad would plug= ged. Dry sump? I think the gearbox needs its own feed line. I think some el= se shared the PSRU/turbo feed for a few hundred hours but decided it caused i= nadequate oil flow and wear to the gearbox.=20 Bobby Sent from my iPad > On May 7, 2015, at 12:29 AM, William Mason w= rote: >=20 > Hello all,=20 >=20 > I am plumbing the PSRU for both supply and drain.=20 >=20 > My rear iron has been modified by Bruce Turrentine-- so I can't use a spac= er between the filter and the pad to create an oil supply for the PSRU but p= lan to-- with the group's consensus-- use a T in the line that would normall= y feed the turbo alone from the front iron. The feed and return to the fil= ter pad have been plugged by what seems to be threaded plugs with allen head= s. I tried to gingerly remove the feed one and abandoned the idea as it see= med to be very well seated. I did not try heat and I could have. Maybe I s= hould revisit the idea? =20 >=20 > I did not buy the engine from Bruce-- instead I sourced it second-hand. I= don't personally know Bruce and I'm not sure how he'd like to have me pick h= is brain on this matter. I figured I'd leave him alone. >=20 > I am using a journal bearing turbo and I am running a restrictor at the tu= rbo oil inlet. I would then use a t fitting and branch off for the PSRU fee= d. >=20 > My plans are to use a spacer between the oil pan and the oil level sending= unit and tap it for a fitting... the drain then would enter the same space= that the oil level sender occupies in the pan... make sense? =20 >=20 > Does anybody see a good reason not to do either of those? >=20 > I'm down to plumbing and wiring now. Head scratching is becoming more com= mon in my shop routines.=20 >=20 > Please advise. >=20 > Regards,=20 > Bill Mason >=20 > Sent from my iPad > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html