X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-ia0-f169.google.com ([209.85.210.169] verified) by logan.com (CommuniGate Pro SMTP 6.0.5) with ESMTPS id 6268482 for flyrotary@lancaironline.net; Mon, 13 May 2013 14:48:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.169; envelope-from=wdleonard@gmail.com Received: by mail-ia0-f169.google.com with SMTP id k38so5879263iah.14 for ; Mon, 13 May 2013 11:48:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:in-reply-to:references:x-goomoji-body:date :message-id:subject:from:to:content-type; bh=YOWmGOa2SlPnEbe6gOh/wOkod18Pine9ctwf6gmF3AI=; b=Dqzq8B1bzZaU/S/bf08vE7tBl++ps2dFKnEmPy6yieMuOZmVfdY151HB9V5SixrZFy L/M09zMCrMPXItlm9gQWxAcAr7U+IO5Ha6wdWDybKviwQT6EFYCeechkWh3RQ5HgpChG hAgMqixRp8yQnQd5RFEqhI9B3TsJ3UGfqWCOvuw1pC0REvOWdgqVYtyQpJ+6alGXxgZH Gcgn7RnI8HjRjSokS7iOAY21b3txpmVMock48yCzI7q2DZnmA5HzEKsjXVqwmQazIEbW GIt86jZ63oxJ1QkAsX8zFm8JOMQMOLtylefBMZnHdpoMUHxpRbap/mDDyr/9mpQ5iEC3 foKw== MIME-Version: 1.0 X-Received: by 10.50.128.44 with SMTP id nl12mr11167522igb.0.1368470890316; Mon, 13 May 2013 11:48:10 -0700 (PDT) Received: by 10.231.52.2 with HTTP; Mon, 13 May 2013 11:48:10 -0700 (PDT) In-Reply-To: References: X-Goomoji-Body: true Date: Mon, 13 May 2013 11:48:10 -0700 Message-ID: Subject: Re: [FlyRotary] Re: damn front o-ring again revisited again again again......sigh From: David Leonard To: Rotary motors in aircraft Content-Type: multipart/related; boundary=089e013a011c4d8aa704dc9df501 --089e013a011c4d8aa704dc9df501 Content-Type: multipart/alternative; boundary=089e013a011c4d8aa504dc9df500 --089e013a011c4d8aa504dc9df500 Content-Type: text/plain; charset=ISO-8859-1 No, just a thin smear of RTV. A thicker dab goes around the oil passage on both sides of a nylon washer, but no o-ring. I have also done without the nylon washer and been ok, but the risk is too much RTV that can clog or narrow the oil passage itself. -- David Leonard Turbo Rotary RV-6 N4VY http://N4VY.RotaryRoster.net http://RotaryRoster.net On Mon, May 13, 2013 at 9:34 AM, Kelly Troyer wrote: > Dave, > Are you using a gasket between front cover and housing ??............. > > Kelly troyer > > > On Mon, May 13, 2013 at 1:34 AM, David Leonard wrote: > >> Chris, >> FWIW I have always had good with nothing but RTV on the front cover >> including the oil passage. One rebuild a couple years ago I decided that >> RTV was not good enough and I installed an o-ring with plastic recessed >> washer ala Bruce Turrintine's video. Well, that lasted about a month >> before I had low oil pressure issues and had to remove the front cover. I >> put RTV back in and have had no problems since. That stuff is amazing. >> >> -- >> David Leonard >> >> Turbo Rotary RV-6 N4VY >> http://N4VY.RotaryRoster.net >> http://RotaryRoster.net >> >> >> On Sat, May 11, 2013 at 6:29 PM, Todd Bartrim wrote: >> >>> Yes. I did this long ago, before first flight. Never had any problem >>> with it. >>> >>> >>> >>> Todd Bartrim >>> >>> >>> On Sat, May 11, 2013 at 6:01 PM, Kelly Troyer wrote: >>> >>>> Todd, >>>> So you now take oil from the drilled out brass plug in the front >>>> (rear in A/C) side plate.............Correct ?? >>>> >>>> Kelly Troyer >>>> >>>> >>>> On Sat, May 11, 2013 at 7:41 PM, Todd Bartrim wrote: >>>> >>>>> Hi Chris; >>>>> Still here. Sorry to hear it didn't hold. I was hoping it would >>>>> prove successful, however I do feel fairly confident that mine will hold up >>>>> (I hope). >>>>> Unfortunately I've not tested it yet. After that mod and a little >>>>> other work, I completely removed every last item from my firewall in order >>>>> to install an unbroken sheet of fireproof blanket. I also want to redo all >>>>> my firewall penetrations as it had become a little piecemeal as I'd added >>>>> more stuff as finances allowed and new stuff became available. >>>>> But before I could get that back together, after hockey season >>>>> finished I took off to Mexico for a month of diving and since I've returned >>>>> the last of the snow has now melted so I'm going hard working outside. >>>>> Can't see much time on the horizon right now either has in addition to my >>>>> regular workload I've got a kid that in addition to baseball has decided to >>>>> become a goaltender for next hockey season, so I've got to spend a week of >>>>> my summer vacation taking him to a very expensive goalie school not to >>>>> mention working to pay for all the new expensive goalie gear that he'll >>>>> need. And no doubt grow out of shortly after. >>>>> When I started this project I had no responsibilities. None. It was >>>>> so easy back then.[?] >>>>> >>>>> Hope you are able to repair it without trouble. Something else to >>>>> consider if you haven't already. I also previously drilled my front iron >>>>> (rear in the plane.. well at least in a tractor plane) for the oil outlet. >>>>> Now the only reason I don't plug the hole completely is to allow oil to the >>>>> relief valve. So long as that valve doesn't open there is no flow through >>>>> the little bushing into the front cover. Not sure that would make any >>>>> difference at all, but I did consider it when making my bushing very robust >>>>> knowing it wouldn't have to allow full flow. >>>>> >>>>> Todd >>>>> The trouble with trouble is it always starts out fun!!! >>>>> >>>>> Todd Bartrim >>>>> >>>>> >>>>> On Sat, May 11, 2013 at 4:27 PM, Chris Barber < >>>>> cbarber@texasattorney.net> wrote: >>>>> >>>>>> Todd Bartrim....you still here? >>>>>> >>>>>> >>>>>> >>>>>> To add insult to injury, after loosing my engine over Pearland >>>>>> Regional Airport (LVJ) a few weeks ago, which we seem to be able to >>>>>> attribute to some gunk found in the Mistral fuel rail clogging the small >>>>>> return orifice, I am also having low oil pressure AGAIN. I have yet to >>>>>> pull the front cover, however, I am leaping to the conclusion that the >>>>>> front cover o-ring is causing the problem. I have tried to address this >>>>>> issue several times now. I have installed the extra support ring >>>>>> provided by Maztatrix. I use no gasket and still have a problem. >>>>>> >>>>>> >>>>>> >>>>>> Similar to you, I installed a small tube in the passage last time I >>>>>> messed with this to hopefully prevent the oil ring blowing out....if >>>>>> I understand correctly due to cold start pressure. However, unlike >>>>>> you, mine was just pressed in aluminum tube modified to fit with holes >>>>>> drilled in the tube to still allow flow if the tube dislodged. >>>>>> >>>>>> >>>>>> >>>>>> How is your modification working? What thoughts do you, or others, >>>>>> have? >>>>>> >>>>>> >>>>>> >>>>>> I think I know the other things that could cause low pressure and do >>>>>> not think they are the issue (such as the pump retaining key slipping out, >>>>>> pressure regulator falling out as it safety tied etc). It is a new oil >>>>>> pump replaced the last time this problem happened. >>>>>> >>>>>> >>>>>> >>>>>> I hopefully will get out to the hangar I rented at LVJ tomorrow and >>>>>> remove the cover to know more but am curious about your success or lack of. >>>>>> >>>>>> >>>>>> >>>>>> Thanks >>>>>> >>>>>> >>>>>> >>>>>> Chris Barber >>>>>> >>>>>> Houston >>>>>> >>>>>> Ellington Field (EFD) >>>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> >>> >> >> >> > > > > --089e013a011c4d8aa504dc9df500 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable
No, just a thin smear of RTV. =A0A thicker dab goes around= the oil passage on both sides of =A0a nylon washer, but no o-ring. =A0I ha= ve also done without the nylon washer and been ok, but the risk is too much= RTV that can clog or narrow the oil passage itself.

--=A0
David Leonard

Turbo Ro= tary RV-6 N4VY
http://N4VY.Rota= ryRoster.net
http://RotaryRoster= .net

On Mon, May 13, 2013 at 9:34 AM, Kelly Troye= r <keltro@gmail.com> wrote:
Dave,
=A0 =A0Are you using a gasket between front cove= r and housing ??.............

Kelly troyer


On Mon, May 13,= 2013 at 1:34 AM, David Leonard <wdleonard@gmail.com> wrot= e:
Chris,
FWIW I have always had good wi= th nothing but RTV on the front cover including the oil passage. =A0One reb= uild a couple years ago I decided that RTV was not good enough and I instal= led an o-ring with plastic recessed washer ala Bruce Turrintine's video= . =A0Well, that lasted about a month before I had low oil pressure issues a= nd had to remove the front cover. =A0I put RTV back in and have had no prob= lems since. =A0That stuff is amazing. =A0

--=A0
David Leonard

Turbo Rotary RV-6 N4VY
http://N4VY.RotaryRost= er.net
http://RotaryRoster.n= et


On Sat, May 11, 2013 at 6:29 PM, Todd Bartri= m <bartrim@gmail.com> wrote:
Yes. I did this long ago, before first flight. Never = had any problem with it.



Todd Bartrim


On Sat, May 11, 2013 at 6:01 PM, Kelly T= royer <keltro@gmail.com> wrote:
Todd,
=A0 So you now take oil from the drilled out bra= ss plug in the front (rear in A/C) side plate.............Correct ??
<= span>

Kelly Troyer


On Sat, May 11, 2013 at 7:41 PM, Todd Ba= rtrim <bartrim@gmail.com> wrote:
Hi Chris;
=A0 Still here. Sorry to hear it didn't = hold. I was hoping it would prove=A0successful, however I do feel fairly co= nfident that mine will hold up (I hope).=A0
=A0 =A0 Unfortunately= =A0I've not tested it yet. After that mod and a little other work, I=A0= completely=A0removed=A0every=A0last item from my firewall in order to insta= ll an unbroken sheet of fireproof blanket. I also want to redo all my firew= all penetrations as it had become a little piecemeal as I'd added more = stuff as finances allowed and new stuff became available.=A0
=A0 =A0But before I could get that back together, after hockey season = finished I took off to Mexico for a month of diving and since I've retu= rned the last of the snow has now melted so I'm going hard working outs= ide. Can't see much time on the horizon right now either has in additio= n to my regular workload I've got a kid that in addition to baseball ha= s decided to become a goaltender for next hockey season, so I've got to= spend a week of my summer vacation taking him to a very expensive goalie s= chool not to mention working to pay for all the new expensive goalie gear t= hat he'll need. And no doubt grow out of shortly after.
=A0 =A0When I started this project I had no=A0responsibilities. None. = It was so easy back then.

Hope you are able to repair it without trouble. Something el= se to consider if you=A0haven't=A0already. I also previously drilled my= front iron (rear in the plane.. well at least in a tractor plane) for the = oil outlet. Now the only reason I don't plug the hole completely is to = allow oil to the relief valve. So long as that valve doesn't open there= is no flow through the little bushing into the front cover. Not sure that = would make any difference at all, but I did consider it when making my bush= ing very robust knowing it wouldn't have to allow full flow.

Todd
The trouble with trouble is it always st= arts out fun!!!

Todd Bartrim


On Sat, May 11, 2013 at 4:27 PM, Chris B= arber <cbarber@texasattorney.net> wrote:

Todd Bartrim....you still here?

=A0

To add insult to injury, after loosing my engine over Pearland Regional = Airport (LVJ) a few weeks ago, which we = seem to be able to attribute to some gunk found in the Mistral fuel rail cl= ogging the small return orifice, I am also having low oil pressure AGAIN.=A0 I have yet to pull the front c= over, however, I am leaping to the conclusion that the front cover=A0o-ring= is causing the problem.=A0 I have tried to address this issue several time= s now.=A0 I have=A0installed the extra support ring provided by Maztatrix.=A0 = I use no gasket and still have a problem.

=A0

Similar=A0to you, I installed a small tube in the passage last ti= me I messed with this to hopefully prevent the oil ring blowing out....if I= =A0understand=A0correctly due to cold start pressure.=A0 Howe= ver, unlike you, mine was just pressed in aluminum tube modified to fit with holes drilled in the tube to still allo= w flow if the tube dislodged.

=A0

How is your modification working?=A0 What thoughts do you, or others, ha= ve?

=A0

I think I know the other things that could cause low pressure and do not= think they are the issue (such as the pump retaining key slipping out, pre= ssure regulator falling out as it safety tied etc).=A0 It is a new oil pump= replaced the last time this problem happened.

=A0

I=A0hopefully will get out to the hangar I r= ented at=A0LVJ tomorrow and remove the c= over to know more but am curious about your success or lack of.

=A0

Thanks

=A0

Chris Barber

Houston

Ellington Field (EFD)










<= /div>







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