Jeff Scott, our aircraft engine GURU emailed me with the below information, so forgive me if I mis informed anyone. Thanks Jeff, Larry Howell
Larry, I believe you'll find the A.D. that you referenced to be for the prop control line, which requires steel fittings (not stainless), although the oil transfer line can be stainless. Aluminum and brass are not acceptable. However the oil pressure in the prop control line from the prop governor can exceed 400 psi. Aluminum fittings are routinely used (and are the standard) on most oil lines like those to the oil cooler or oil filter. Those lines should never exceed 100 psi and typically run at 70 psi. I doubt that the Corvairs run any more oil pressure than that, so an aluminum fitting should be perfectly acceptable. Best regards, Jeff Scott ---------- Original Message ---------- From: "Larry H." <lah...@yahoo.com> To: KRnet <kr...@mylist.net> Subject: Re: KR> Beginning of Test Installation of the New Corvair Engine List-Post: krnet@list.krnet.org Date: Mon, 31 May 2010 16:19:16 -0700 (PDT) Hi Dan, The only thing I would suggest is?putting stainless steel fittings in the 5th bearing if it is not and in the oil filter adapter that the 5th bearing oil line is attached to. It may not be as critical on the Corvair engine as compared to a Lycoming. I know years ago ADs were issued on Lycomings that had brass or aluminum fittings screwed in because they can break more easily, plus some did which caused the ADs. If that were to happen I would imagine your oil supply could be depleted fairly quickly. I mentioned that to Roy at Oshkosh or the KR Gathering last year and he agreed that would be a good idea. ? ________________________________ From: Dan Heath <da...@windstream.net> To: KRnet <kr...@mylist.net>; Corvair engines for homebuilt aircraft <corvaircr...@mylist.net> Sent: Mon, May 31, 2010 1:57:43 PM Subject: KR> Beginning of Test Installation of the New Corvair Engine I have started installing the new Corvair Engine on the Little Beast, which is being parted out, except the fuselage.? So while it is still in the shop on the gear, I am putting her to good use as a test bed for the installation of the new Corvair engine. You can see the full story at: http://krbuilder.org/CorvairInstallation/index.html I am going to the Corvair site now to see if I can find the instructions for installing the distributor.? I brought them home with me from CC 17, but cannot locate them now. Any and all comments are appreciated as I need all the help I can get, but unless they are for the good of the Corvair community, please send them to me at the e-mail link below. Thanks, Daniel R. Heath da...@windstream.net See N64KR at? <http://krbuilder.org/> http://KRBuilder.org - Then click on the pics See you at the 2010 - KR Gathering in Richmond, Ky - I39 _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html ____________________________________________________________ Refinance Now 4.0% FIXED! $160,000 Mortgage for $633/mo. Free. No Obligation. Get 4 Quotes! Mortgage.LendGo.com
