Return-Path: Received: from [65.54.241.214] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 360493 for flyrotary@lancaironline.net; Tue, 10 Aug 2004 21:11:18 -0400 Received-SPF: none receiver=logan.com; client-ip=65.54.241.214; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.169.61]) by hotmail.com with Microsoft SMTPSVC(5.0.2195.6713); Tue, 10 Aug 2004 18:10:48 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 10 Aug 2004 18:10:48 -0700 Received: from 65.54.98.150 by bay3-dav31.bay3.hotmail.com with DAV; Wed, 11 Aug 2004 01:10:48 +0000 X-Originating-IP: [65.54.98.150] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Rebuild begins / Renesis delay Date: Tue, 10 Aug 2004 21:10:47 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_01AC_01C47F1E.819CCD60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0006.2205 Seal-Send-Time: Tue, 10 Aug 2004 21:10:47 -0400 Message-ID: X-OriginalArrivalTime: 11 Aug 2004 01:10:48.0685 (UTC) FILETIME=[097A21D0:01C47F40] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_01AC_01C47F1E.819CCD60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable ----- Original Message -----=20 From: Dana Overall=20 To: Rotary motors in aircraft=20 Sent: Tuesday, August 10, 2004 2:10 PM Subject: [FlyRotary] Rebuild begins In reading Tracy's book on rotary rebuild he mentions dropping a 3/16" = dowel=20 into the front cover oil passage leading to the pump drive after = removing=20 the oil injection pump drive. I talked with Bruce who stated this is = not=20 nessessary. Last I talked with Tracy this morning, he was ankle deep = in=20 coolant so I'm not bothering him anymore today:-). Question, what is = the=20 reasoning behind this dowel and is it required? Dana Overall The dowel was to block oil flow. I later learned that there is = already a small orifice in the oil passage to restrict flow (to the = injector pump) so the dowel is optional. I was planning on first engine start yesterday but when I filled the = cooling system & pressure tested, I noticed a small leak at one of the = intake manifold bolts (! ? ). Removed bolt and about a gallon of = coolant ran out. Now why would Mazda drill an intake manifold bolt into = the cooling jacket? Answer: Mazda didn't. Bruce decided to add some = manifold bolt holes to make it easier to mount manifolds. Nice thought = but wish he had let me know about them as well as the added "coolant = drain" feature.=20 Expect engine start after a day or two of rework. BTW, I used a pressurized coolant expansion tank system this time and = was very pleased to find that the cooling system would fill completely = through the tank. Connecting the block vent at the flywheel end of = engine to the high port on expansion tank works really great. Tracy (moping up coolant) >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_01AC_01C47F1E.819CCD60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 
----- Original Message -----
To: Rotary motors in = aircraft
Sent: Tuesday, August 10, 2004 = 2:10=20 PM
Subject: [FlyRotary] Rebuild = begins

In reading Tracy's book on rotary rebuild he mentions dropping a = 3/16"=20 dowel
into the front cover oil passage leading to the pump drive = after=20 removing
the oil injection pump drive.  I talked with Bruce = who=20 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=20 today:-).  Question, what is the
reasoning behind this dowel = and is=20 it required?

Dana Overall
 
The dowel was to block oil flow.  I later learned that there = is=20 already a small orifice in the oil passage to restrict flow (to the = injector=20 pump) so the dowel is optional.
 
I was planning on first engine start yesterday but when I filled = the=20 cooling system & pressure tested, I noticed a small leak at one of = the=20 intake manifold bolts (! ? ).  Removed bolt and about a gallon of = coolant=20 ran out.  Now why would Mazda drill an intake manifold bolt into = the=20 cooling jacket?  Answer:   Mazda didn't.  Bruce = decided to=20 add some manifold bolt holes to make it easier to mount = manifolds.  Nice=20 thought but wish he had let me know about them as well as the added = "coolant=20 drain" feature. 
 
Expect engine start after a day or two of rework.
 
BTW, I used a pressurized coolant expansion tank system this time = and was=20 very pleased to find that the cooling system would fill completely = through the=20 tank.   Connecting the block vent at the flywheel end of = engine to=20 the high port on expansion tank works really great.
 
Tracy  (moping up coolant)
 


>>  Homepage:  http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html
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