X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop-Diagnostic: (direct reply)\eX-PolluStop-Score: 0.00\eX-PolluStop: Scanned with Niversoft PolluStop 2.1 RC1, http://www.niversoft.com/pollustop Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c4) with ESMTP id 863567 for flyrotary@lancaironline.net; Sat, 09 Apr 2005 21:15:00 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-185-127.carolina.res.rr.com [24.74.185.127]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j3A1EEY5015009 for ; Sat, 9 Apr 2005 21:14:15 -0400 (EDT) Message-ID: <000401c53d6a$a4579c80$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: No Joy on Sun & Fun{:<( Date: Sat, 9 Apr 2005 21:14:27 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C53D49.1D0CC410" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C53D49.1D0CC410 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave, I was using Huxley seals sold by Dave Atkins. The engine rebuilt by = myself in Dec 2000, first flew in Feb 2001 and currently has 150 hours = on it. I am using a 1991 turbo block (sans turbo) with EC2 and the 2.85 redrive = from Tracy. Never too early to speculate - so long as you are willing = to change the speculation once data is presented {:>) Engine has been doing beautifully, so something I did since the last = flight is the cause. Those two things were: 1. Changed type of spark plug from stock to the B9EQV 2. Flew with a new Plastic plenum (third time I have used a plastic = plenum with no previous problems). 3. For the first ever flying to Florida - I had a Tail wind - but = doubtful that had much bearing on the situation {:>) Ed ----- Original Message -----=20 From: David Staten=20 To: Rotary motors in aircraft=20 Sent: Saturday, April 09, 2005 8:43 PM Subject: [FlyRotary] Re: No Joy on Sun & Fun{:<( This is premature on my part to speculate, but what Apex Seals were = you using? And did you rebuild that block yourself? Approximately how = many hours on the core/block in its present state of build? =20 If I remember correctly you are using a normally aspirated 13B, with = EC2 and RD-1 correct?=20 =20 The other David, David Staten Ed Anderson wrote: Thanks, David Yes, I still lean toward the spark plug theory - but, the delay and the = fact that it did not appear to happen to both rotor at the same time sorts of leaves ??? about the theory. It does seem unlikely a few bits of = plastic would have taken out all 6 apex seals, but should be able to tell = tomorrow by peeking into the intake - if the dividers still in place then that = would pretty much eliminate that as a cause. Well, this is the third time (charmed?) that I made the decision to = divert to an airport unintended - well unintended until it look like the best choice given the situation {: ). Just a bummer missing the gang at S & F Ed ----- Original Message ----- From: "David Leonard" To: "Rotary motors in aircraft" Sent: Saturday, April 09, 2005 7:02 PM Subject: [FlyRotary] Re: No Joy on Sun & Fun{:<( There you go again, trying the be the rotary engine glider expert. It is such a shame that it interrupted the trip to SnF. I got invited to go in a friends Lancair IV-P but am working all week. It take a lot of confidence to go cross country after putting on a new part of the intake system. Even I (fly to mexico with a broken turbo), would hesitate to do that. I find it hard to believe that a little plastic could break [at least] 4/6 apex seals. So the spark plug theory (of the two listed) is more likely in my mind. Other possibilities.. hmmm. All seem very unlikely: Other FOD, detonation, loss of apex seal lubrication, lead deposits on the spark plugs poking into the chamber, fuel contamination with grit or sand, spark plugs actually broke and won't seal or are loose. Glad to hear you are safe, bummer about the trip, interested to hear the post mortum. Dave Leonard Homepage: http://www.flyrotary.com/ Archive: http://lancaironline.net/lists/flyrotary/List.html =20 Homepage: http://www.flyrotary.com/ Archive: http://lancaironline.net/lists/flyrotary/List.html =20 =20 >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_0001_01C53D49.1D0CC410 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave,
 
I was using Huxley seals sold by Dave = Atkins. =20 The engine rebuilt by myself in Dec 2000, first flew in Feb 2001 and = currently=20 has 150 hours on it.
I am using a 1991 turbo block (sans = turbo) with EC2=20 and the 2.85 redrive from Tracy.  Never too early to speculate - so = long as=20 you are willing to change the speculation once data is presented=20 {:>)
 
Engine has been doing beautifully, so = something I=20 did since the last flight is the cause.  Those two things=20 were:
 
1.  Changed type of spark plug = from stock to=20 the B9EQV
2.  Flew with a new Plastic plenum = (third time=20 I have used a plastic plenum with no previous problems).
3.  For the first ever flying to = Florida - I=20 had a Tail wind - but doubtful that had much bearing on the situation=20 {:>)
 
Ed
----- Original Message -----
From:=20 David=20 Staten
Sent: Saturday, April 09, 2005 = 8:43=20 PM
Subject: [FlyRotary] Re: No Joy = on Sun=20 & Fun{:<(

This is premature on my part to speculate, but what = Apex Seals=20 were you using? And did you rebuild that block yourself? Approximately = how=20 many hours on the core/block in its present state of = build?
 
If I=20 remember correctly you are using a normally aspirated 13B, with EC2 = and RD-1=20 correct?
 
The other David,
David Staten


Ed = Anderson=20 wrote:
Thanks, David

Yes, I still lean toward the spark plug theory - but, the delay and the =
fact
that it did not appear to happen to both rotor at the same time sorts of
leaves ??? about the theory.   It does seem unlikely a few bits of =
plastic
would have taken out all 6 apex seals, but should be able to tell =
tomorrow
by peeking into the intake - if the dividers still in place then that =
would
pretty much eliminate that as a cause.

Well, this is the third time (charmed?) that I made the decision to =
divert
to an airport unintended - well unintended until it look like the best
choice given the situation {: ).

Just a bummer missing the gang at S & F

Ed
----- Original Message -----
From: "David Leonard" <wdleonard@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.n=
et>
Sent: Saturday, April 09, 2005 7:02 PM
Subject: [FlyRotary] Re: No Joy on Sun & Fun{:<(


  
There you go again, trying =
the be the rotary engine glider expert.  It
is such a shame that it interrupted the trip to SnF.  I got invited to
go in a friends Lancair IV-P but am working all week.

It take a lot of confidence to go cross country after putting on a new
part of the intake system.  Even I (fly to mexico with a broken
turbo), would hesitate to do that.

I find it hard to believe that a little plastic could break [at least]
4/6 apex seals.  So the spark plug theory (of the two listed) is more
likely in my mind.

Other possibilities.. hmmm.  All seem very unlikely:  Other FOD,
detonation, loss of apex seal lubrication, lead deposits on the spark
plugs poking into the chamber, fuel contamination with grit or sand,
spark plugs actually broke and won't seal or are loose.

Glad to hear you are safe, bummer about the trip, interested to hear
the post mortum.

Dave Leonard

    
 Homepage:  http://www.flyrotary.com/
 Archive:   http://lancai=
ronline.net/lists/flyrotary/List.html
        



  
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