X-Virus-Scanned: clean according to Sophos on Logan.com From: Received: from resqmta-ch2-07v.sys.comcast.net ([69.252.207.39] verified) by logan.com (CommuniGate Pro SMTP 6.1.2) with ESMTPS id 7678861 for flyrotary@lancaironline.net; Thu, 07 May 2015 15:42:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=69.252.207.39; envelope-from=hoursaway1@comcast.net Received: from resomta-ch2-20v.sys.comcast.net ([69.252.207.116]) by resqmta-ch2-07v.sys.comcast.net with comcast id R7hS1q0062XD5SV017hcgv; Thu, 07 May 2015 19:41:36 +0000 Received: from resmail-ch2-632v.sys.comcast.net ([162.150.50.156]) by resomta-ch2-20v.sys.comcast.net with comcast id R7hc1q0013NCDde017hcdT; Thu, 07 May 2015 19:41:36 +0000 Date: Thu, 7 May 2015 19:41:35 +0000 (UTC) To: "Fly rotary blog, e-mail" Message-ID: <16818132.1365910.1431027695698.JavaMail.zimbra@comcast.net> In-Reply-To: References: Subject: Re: [FlyRotary] Re: PSRU oil supply and drain MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_1365909_72192841.1431027695697" X-Originating-IP: [::ffff:24.127.211.224] X-Mailer: Zimbra 8.0.7_GA_6031 (ZimbraWebClient - IE7 (Win)/8.0.7_GA_6031) Thread-Topic: PSRU oil supply and drain Thread-Index: ynPWIhL0B56Nc92Q1LR6GlbuxGwX5g== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=comcast.net; s=q20140121; t=1431027696; bh=R2kBy0iVGt7Nn+lASDaNP1m+29WXKzMrO52pThnkQy4=; h=Received:Received:Date:From:To:Message-ID:Subject:MIME-Version: Content-Type; b=b2dk3YgzPfRqUpDpFOUZIf7NvrqzB/3NOO8NIU5XUj5jz4fIw0hebRBnX93NNqvxs y0lkMppgZ9eW/Qd5tUf8tgHk4Smaf9s0aI2CKSjKRS8Dy3BSObIzFE9ZPgC47bBAP0 y9zWNzCKfIyBNWX1bl1lqExyKM+xeNFdzBthEXWwHvcrkVRshpGuqgpQxkd1VYrVXz iM0I+3+SzheSzRVAvH5YQgoxc0Us7X8uqGBXLwAAb5QBcFqMmuFwUFB6ghOywMWcwE G4gLqCf8AJ/m1rtHzVPbqUaO0gNH7lvjYxyEIIKrnG4Y0JqfN1yy/wGnNnaFJ2BWPR bRc6iwZznNC1Q== ------=_Part_1365909_72192841.1431027695697 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable That would be HOT eng. oil going to PSRU.=C2=A0 Tracy's suggestion of a T-f= itting at the outlet for the turbo or the outlet for the pressure sender.= =C2=A0 David R. Cook RV6A Rotary.=C2=A0=20 ----- Original Message ----- From: "William Mason" =20 To: "Rotary motors in aircraft" =20 Sent: Thursday, May 7, 2015 1:39:20 PM=20 Subject: [FlyRotary] Re: PSRU oil supply and drain=20 The side housings are 86-91 irons. =C2=A0=C2=A0=20 The plug is present on the pan side to fill the galley after connecting the= ports with a drill.=20 I can take either of the allen plugs out of the iron, but then getting a su= itable fitting may be a problem.=20 My guess is that the plug is 1/4 20. =C2=A0 1/4 20 to an4 adapters also hav= e an o ring or crush washer seal. =C2=A0I'm not sure I like the idea as the= pad-ectomy site is not exactly a precision machined surface. =C2=A0I also = have concerns that this fitting will be fairly restrictive as well.=20 At this point if I wanted to tap the site for a larger fitting on a complet= e assembled engine-- I'm asking for trouble. =C2=A0=20 My planned oil cooler line will leave the front housing, enter a remote fil= ter, leave the filter enter the cooler, exit the cooler and flow back into = the rear iron in the stock location.=C2=A0=20 =C2=A0How about this.... =C2=A0take the PSRU oil from the remote filter hou= sing which will be mounted to the front PSRU plate?=20 =C2=A0I can tap that for 1/4 to -4 fitting and then have short, simple line= s. =C2=A0 =C2=A0Is there a problem with this approach?=20 Mailing List flyrotary@lancaironline.net Archived Message #61756 =09=C2=A0 = =C2=A0 back to list=20 From: =09Kelly Troyer < flyrotary@lancaironline.net >=20 Subject: =09Re: [FlyRotary] Re: PSRU oil supply and drain=20 Date: =09Thu, 7 May 2015 11:34:40 -0500=20 To: =09Rotary motors in aircraft < flyrotary@lancaironline.net > =09 Bill,=20 =C2=A0Need a little more info about your engine........ I presume it is bas= ed on a 86-91 iron side housings.........If so your oil inlet to the engine= =C2=A0=20 probably enters the bottom of the rear hsg (front in AC) from an external o= il filter..........Since your stock oil filter pad is plugged your=20 rear iron was probably modified in the same method as my 88 engine........M= y stock oil filter pad has been totally removed and the inlet=20 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=C2=A0=20 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=20 inch (7/16" drill bit if I remember correctly) used to drill out the wall s= eparating the inlet and outlet ports (they intersect at an angle) on the=C2= =A0=20 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=20 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.........=20 =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= =20 use a "T" fitting for a common feed to the PSRU and Turbo (Too restrictive)= .............FWIW=20 Kelly Troyer=C2=A0=20 On Thu, May 7, 2015 at 5:22 AM, Bobby J. Hughes=C2=A0 < flyrotary@lancairon= line.net > =C2=A0wrote:=20 Bill=20 A picture would be helpful. I can't think of a reason the oil pad would plu= gged. Dry sump? I think the gearbox needs its own feed line.=C2=A0 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.=20 Bobby=20 Sent from my iPad=20 > On May 7, 2015, at 12:29 AM, William Mason < flyrotary@lancaironline.net = > wrote:=20 >=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 spa= cer 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 norm= ally feed the turbo alone from the front iron.=C2=A0 =C2=A0The feed and ret= urn to the filter pad have been plugged by what seems to be threaded plugs = with allen heads.=C2=A0 I tried to gingerly remove the feed one and abandon= ed the idea as it seemed to be very well seated.=C2=A0 I did not try heat a= nd I could have.=C2=A0 =C2=A0Maybe I should revisit the idea?=20 >=20 > 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 leave him alone.=20 >=20 > I am using a journal bearing turbo and I am running a restrictor at the t= urbo oil inlet.=C2=A0 I would then use a t fitting and branch off for the P= SRU feed.=20 >=20 > My plans are to use a spacer between the oil pan and the oil level sendin= g unit and tap it for a fitting...=C2=A0 the drain then would enter the sam= e space that the oil level sender occupies in the pan...=C2=A0 make sense?= =20 >=20 > Does anybody see a good reason not to do either of those?=20 >=20 > I'm down to plumbing and wiring now.=C2=A0 Head scratching is becoming mo= re common in my shop routines.=20 >=20 > Please advise.=20 >=20 > Regards,=20 > Bill Mason=20 >=20 > Sent from my iPad=20 Subscribe:=C2=A0 Feed ,=C2=A0 Digest ,=C2=A0 Index .=20 Unsubscribe=20 Mail to ListMaster=20 Sent from my iPad=20 ------=_Part_1365909_72192841.1431027695697 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
That would be HOT eng. oil going to PS= RU.  Tracy's suggestion of a T-fitting at the outlet for the turbo or = the outlet for the pressure sender.  David R. Cook RV6A Rotary. <= BR>

From: "William Mason" <flyrotary@lancaironline.net>
T= o: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
<= B>Sent: Thursday, May 7, 2015 1:39:20 PM
Subject: [FlyRotary]= Re: PSRU oil supply and drain

The side housings are 86-91 irons.   

The plug is present on the pan side to fill the galley after connectin= g the ports with a drill.

I can take either of the allen plugs out of the iron, but then getting= a suitable fitting may be a problem.

My guess is that the plug is 1/4 20.   1/4 20 to an4 adapters als= o have an o ring or crush washer seal.  I'm not sure I like the idea a= s the pad-ectomy site is not exactly a precision machined surface.  I = also have concerns that this fitting will be fairly restrictive as well.

At this point if I wanted to tap the site for a larger fitting on a co= mplete assembled engine-- I'm asking for trouble.  

My planned oil cooler line will leave the front housing, enter a remot= e filter, leave the filter enter the cooler, exit the cooler and flow back = into the rear iron in the stock location. 

 How about this....  take the PSRU oil from the remote filte= r housing which will be mounted to the front PSRU plate?

 I can tap that for 1/4 to -4 fitting and then have short, simple= lines.    Is there a problem with this approach?



Mailing Li= st flyrotary@lancaironline.net= Archived Message #61756 <= SPAN style=3D"WHITE-SPACE: normal" data-mce-style=3D"white-space: normal;">= 3D"previous 3D"next back to list
From: Kelly Troyer <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: PSRU oil supply and = drain
Date: Thu, 7 May 2015 11:34:40 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
 =3D"Message

3D"Undecoded
Bill,=20
 Need a little more info about your engine........ I presum= e 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 yo= ur
rear iron was probably modified in the same method as my 88 engi= ne........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 unles= s 
another modification is done..........There is a brass plug on t= he 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 fi= nd 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 pro= bably 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 r= estrictive).............FWIW

Kelly Troyer 
On Thu, May 7, 2015 at 5:22 AM, Bobby J. Hug= hes <flyrotary@lancaironline.net>&= nbsp;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, Willia= m Mason <flyrotary@lancaironline.net> wrote:
>
> H= ello 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 f= or 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.   T= he 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 i= t 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 runn= ing 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 sp= acer between the oil pan and the oil level sending unit and tap it for a fi= tting...  the drain then would enter the same space that the oil level= sender occupies in the pan...  make sense?
>
> Does anybo= dy 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
=



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