X-Virus-Scanned: clean according to Sophos on Logan.com From: "Kelly Troyer" Received: from mail-ob0-f169.google.com ([209.85.214.169] verified) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTPS id 7678405 for flyrotary@lancaironline.net; Thu, 07 May 2015 12:35:13 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.214.169; envelope-from=keltro@gmail.com Received: by obfe9 with SMTP id e9so35695402obf.1 for ; Thu, 07 May 2015 09:34:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=Mr4GqW2+IcHI6rTz95mzKdw32+1WnwjlohSY94G01Ug=; b=YBhE3rJkpK7CExwtoe0pVrrxYqEib/oXX/9dEYpJBDIbUYrOALKsiSWOGYnIsbymXX Sc4rm/seS9FUpoARxpqo5L9Xzpm9PWwIKHEfOuNCiVGnT+tOg4fj1zM74iCqMBLBnQWS 2c8BP7cvnFGki4PAoB1U+chGq40n1zyrsxLt15oa1jnI9VYMl7mTe/G6ldI5WOE7vNJj 6nwY66UNPuQg2CiydEEn0WmCzey2N9Dy0cUTzQxt7Y9IWtEJaJyNrF4vKJsz6ZIFg9kn 0hUV8I9GYu8ULgW6XDEZqjjWwQBxLEBSiwuqmz+CGGGr+BUyenWVVknxETWmRxVc5hk/ Pazw== MIME-Version: 1.0 X-Received: by 10.182.240.135 with SMTP id wa7mr616397obc.63.1431016480359; Thu, 07 May 2015 09:34:40 -0700 (PDT) Received: by 10.202.172.23 with HTTP; Thu, 7 May 2015 09:34:40 -0700 (PDT) In-Reply-To: References: Date: Thu, 7 May 2015 11:34:40 -0500 Message-ID: Subject: Re: [FlyRotary] Re: PSRU oil supply and drain To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=001a11c1dfc0facc6f0515807cd6 --001a11c1dfc0facc6f0515807cd6 Content-Type: text/plain; charset=UTF-8 Bill, Need a little more info about your engine........ I presume it is based on a 86-91 iron side housings.........If so your oil inlet to the engine probably enters the bottom of the rear hsg (front in AC) from an external oil filter..........Since your stock oil filter pad is plugged your rear iron was probably modified in the same method as my 88 engine........My stock oil filter pad has been totally removed and the inlet and outlet to the filter pad have been plugged like yours..........If this is done than no oil can get to the main and rotor bearings unless another modification is done..........There is a brass plug on the bottom (pan surface) of the rear hsg that has to be drilled out and a 12 inch (7/16" drill bit if I remember correctly) used to drill out the wall separating the inlet and outlet ports (they intersect at an angle) on the oil filter pad which are then plugged..............The way to find out for sure this was done on your engine is to look at the pan surface of your rear hsg directly below the filter pad area for what is probably a 1/4 inch allen head pipe plug instead of the stock brass plug......... If you can get the plugs out of the filter pad you can use one to the turbo and the other to the gearbox but like Bobby said I would not use a "T" fitting for a common feed to the PSRU and Turbo (Too restrictive).............FWIW Kelly Troyer On Thu, May 7, 2015 at 5:22 AM, Bobby J. Hughes wrote: > Bill > > A picture would be helpful. I can't think of a reason the oil pad would > plugged. Dry sump? I think the gearbox needs its own feed line. I think > some else shared the PSRU/turbo feed for a few hundred hours but decided it > caused inadequate oil flow and wear to the gearbox. > > Bobby > > Sent from my iPad > > > On May 7, 2015, at 12:29 AM, William Mason > wrote: > > > > Hello all, > > > > I am plumbing the PSRU for both supply and drain. > > > > My rear iron has been modified by Bruce Turrentine-- so I can't use a > spacer between the filter and the pad to create an oil supply for the PSRU > but plan to-- with the group's consensus-- use a T in the line that would > normally feed the turbo alone from the front iron. The feed and return to > the filter pad have been plugged by what seems to be threaded plugs with > allen heads. I tried to gingerly remove the feed one and abandoned the > idea as it seemed to be very well seated. I did not try heat and I could > have. Maybe I should revisit the idea? > > > > 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 his brain on this matter. I figured I'd leave him alone. > > > > I am using a journal bearing turbo and I am running a restrictor at the > turbo oil inlet. I would then use a t fitting and branch off for the PSRU > feed. > > > > 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? > > > > Does anybody see a good reason not to do either of those? > > > > I'm down to plumbing and wiring now. Head scratching is becoming more > common in my shop routines. > > > > Please advise. > > > > Regards, > > Bill Mason > > > > Sent from my iPad > --001a11c1dfc0facc6f0515807cd6 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Bill,
=C2=A0Need a little more info about your engine.= ....... I presume it is based on a 86-91 iron side housings.........If so y= our oil inlet to the engine=C2=A0
probably enters the bottom of t= he rear hsg (front in AC) from an external oil filter..........Since your s= tock oil filter pad is plugged your
rear iron was probably modifi= ed in the same method as my 88 engine........My stock oil filter pad has be= en totally removed and the inlet
and outlet to the filter pad hav= e been plugged like yours..........If this is done than no oil can get to t= he main and rotor bearings unless=C2=A0
another modification is d= one..........There is a brass plug on the bottom (pan surface) of the rear = hsg that has to be drilled out and a 12
inch (7/16" drill bi= t if I remember correctly) used to drill out the wall separating the inlet = and outlet ports (they intersect at an angle) on the=C2=A0
oil fi= lter pad which are then plugged..............The way to find out for sure t= his was done on your engine is to look at the pan surface of
your= rear hsg directly below the filter pad area for what is probably a 1/4 inc= h allen head pipe plug instead of the stock brass plug.........
<= br>
=C2=A0If you can get the plugs out of the filter pad you can = use =C2=A0one to the turbo and the other to the gearbox but like Bobby said= I would not
use a "T" fitting for a common feed to the= PSRU and Turbo (Too restrictive).............FWIW

Kelly Troyer=C2=A0

On Thu, May 7, 2015 at 5:22 AM, Bobby J. Hughes &= lt;flyrota= ry@lancaironline.net> wrote:

> On May 7, 2015, at 12:29 AM, William Mason <flyrotary@lancaironline.net> wrote:
>
> Hello all,
>
> I am plumbing the PSRU for both supply and drain.
>
> My rear iron has been modified by Bruce Turrentine-- so I can't us= e a spacer between the filter and the pad to create an oil supply for the P= SRU but plan to-- with the group's consensus-- use a T in the line that= would normally feed the turbo alone from the front iron.=C2=A0 =C2=A0The f= eed and return to the filter pad have been plugged by what seems to be thre= aded plugs with allen heads.=C2=A0 I tried to gingerly remove the feed one = and abandoned the idea as it seemed to be very well seated.=C2=A0 I did not= try heat and I could have.=C2=A0 =C2=A0Maybe I should revisit the idea? >
> I did not buy the engine from Bruce-- instead I sourced it second-hand= .=C2=A0 I don't personally know Bruce and I'm not sure how he'd= like to have me pick his brain on this matter.=C2=A0 I figured I'd lea= ve him alone.
>
> I am using a journal bearing turbo and I am running a restrictor at th= e turbo oil inlet.=C2=A0 I would then use a t fitting and branch off for th= e PSRU feed.
>
> My plans are to use a spacer between the oil pan and the oil level sen= ding unit and tap it for a fitting...=C2=A0 the drain then would enter the = same space that the oil level sender occupies in the pan...=C2=A0 make sens= e?
>
> Does anybody see a good reason not to do either of those?
>
> I'm down to plumbing and wiring now.=C2=A0 Head scratching is beco= ming more common in my shop routines.
>
> Please advise.
>
> Regards,
> Bill Mason
>
> Sent from my iPad

=


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