Return-Path: Received: from out008.verizon.net ([206.46.170.108] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 364262 for flyrotary@lancaironline.net; Fri, 13 Aug 2004 20:29:19 -0400 Received-SPF: pass receiver=logan.com; client-ip=206.46.170.108; envelope-from=finn.lassen@verizon.net Received: from verizon.net ([4.12.145.173]) by out008.verizon.net (InterMail vM.5.01.06.06 201-253-122-130-106-20030910) with ESMTP id <20040814002848.XCRX8960.out008.verizon.net@verizon.net> for ; Fri, 13 Aug 2004 19:28:48 -0500 Message-ID: <411D5CB6.8020702@verizon.net> Date: Fri, 13 Aug 2004 20:28:38 -0400 From: Finn Lassen User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Rebuild begins References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------070606060806020904030102" X-Authentication-Info: Submitted using SMTP AUTH at out008.verizon.net from [4.12.145.173] at Fri, 13 Aug 2004 19:28:47 -0500 This is a multi-part message in MIME format. --------------070606060806020904030102 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit If you look closely at the oil pump, you'll notice a small hole near its shaft. Oil squirts out of there lubricatinf the chain. Good reason to plug the 3/16" hole is more oil to the rest of the engine where it's needed. Finn Finn DaveLeonard wrote: >Dana, I think that dowel is there to prevent oil from going to oil >injection area and spilling back. I recommend NOT putting it in. > >During my last re-build I blew into that hole while there was oil in it. >Sure enough the oil squirted back at me from a little hole in the injection >drive area. I think that is why Tracy recommends plugging the hole. >However, I also noted that when the cover is on, that little spray of oil >will be landing right on the oil pump sprocket/chain. I believe it is meant >to do that to keep the chain lubricated. > >So I installed mine without the dowel and have no problems with oil >pressure. > >Dave Leonard > > > > >>In reading Tracy's book on rotary rebuild he mentions dropping a >>3/16" dowel >>into the front cover oil passage leading to the pump drive after removing >>the oil injection pump drive. I talked with Bruce who stated this is not >>nessessary. Last I talked with Tracy this morning, he was ankle deep in >>coolant so I'm not bothering him anymore today:-). Question, what is the >>reasoning behind this dowel and is it required? >> >> >> >>Dana Overall >>Richmond, KY i39 >>RV-7 slider, Imron black, "Black Magic" >>Finish kit >>13B Rotary. Hangar flying my Dynon. >> >> > > > > >>> Homepage: http://www.flyrotary.com/ >>> Archive: http://lancaironline.net/lists/flyrotary/List.html >>> >>> > > > --------------070606060806020904030102 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit If you look closely at the oil pump, you'll notice a small hole near its shaft. Oil squirts out of there lubricatinf the chain. Good reason to plug the 3/16" hole is more oil to the rest of the engine where it's needed.

Finn

Finn

DaveLeonard wrote:

Dana,  I think that dowel is there to prevent oil from going to oil
injection area and spilling back.  I recommend NOT putting it in.

During my last re-build I blew into that hole while there was oil in it.
Sure enough the oil squirted back at me from a little hole in the injection
drive area.  I think that is why Tracy recommends plugging the hole.
However, I also noted that when the cover is on, that little spray of oil
will be landing right on the oil pump sprocket/chain.  I believe it is meant
to do that to keep the chain lubricated.

So I installed mine without the dowel and have no problems with oil
pressure.

Dave Leonard

In reading Tracy's book on rotary rebuild he mentions dropping a
3/16" dowel
into the front cover oil passage leading to the pump drive after removing
the oil injection pump drive.  I talked with Bruce who stated this is not
nessessary.  Last I talked with Tracy this morning, he was ankle deep in
coolant so I'm not bothering him anymore today:-).  Question, what is the
reasoning behind this dowel and is it required?



Dana Overall
Richmond, KY i39
RV-7 slider, Imron black, "Black Magic"
Finish kit
13B Rotary. Hangar flying my Dynon.

 Homepage:  http://www.flyrotary.com/
 Archive:   http://lancaironline.net/lists/flyrotary/List.html

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