X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao102.cox.net ([68.230.241.44] verified) by logan.com (CommuniGate Pro SMTP 5.3.9) with ESMTP id 4469993 for flyrotary@lancaironline.net; Thu, 16 Sep 2010 20:23:49 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.44; envelope-from=alventures@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao102.cox.net (InterMail vM.8.00.01.00 201-2244-105-20090324) with ESMTP id <20100917002315.BSZB23088.fed1rmmtao102.cox.net@fed1rmimpo01.cox.net> for ; Thu, 16 Sep 2010 20:23:15 -0400 Received: from BigAl ([72.199.216.236]) by fed1rmimpo01.cox.net with bizsmtp id 7cP41f00156cS2o03cP49D; Thu, 16 Sep 2010 20:23:04 -0400 X-VR-Score: -100.00 X-Authority-Analysis: v=1.1 cv=PyPhBskYoaHflNqPyNkGzxEHMB/j16Lz16eTzQWlCdI= c=1 sm=1 a=lN8H/RjlhkCyIsyuOn2r7w==:17 a=Ia-xEzejAAAA:8 a=3oc9M9_CAAAA:8 a=8fvOh1mKAAAA:8 a=7g1VtSJxAAAA:8 a=ayrL2VVfz_H_huWEFeMA:9 a=4ey78IxrCOYVMrRgwykA:7 a=rc1kCcpjtYMX-plh1fN_7OiBqtkA:4 a=CjuIK1q_8ugA:10 a=Qa1je4BO31QA:10 a=EzXvWhQp4_cA:10 a=U8Ie8EnqySEA:10 a=SVqzirnCOXUA:10 a=gYcX3Mxq07YF3ONH:21 a=RUYKspW8ncY5XSK7:21 a=cuRR9k7yOZyfIEujHRoA:9 a=CwtY-KoCbYptFJVDjkoA:7 a=TDy1EtWz3vsNEPTSWqVrOZ79nykA:4 a=lN8H/RjlhkCyIsyuOn2r7w==:117 X-CM-Score: 0.00 Authentication-Results: cox.net; none From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Timing Date: Thu, 16 Sep 2010 17:23:11 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01CB55C3.D65A7FF0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6863 Importance: Normal Thread-Index: ActVz6CHKtdoRMntQV+sTidEvPu51wANqo4g In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5931 This is a multi-part message in MIME format. ------=_NextPart_000_001D_01CB55C3.D65A7FF0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable To find TDC; rotate to get the tip seal on #1 rotor half way between = leading and trailing plug (count flywheel gear teeth between, rotate half way = back). You then need to rotate the rotor 60 degrees in either direction - which means rotating the flywheel 180 degrees. =20 Worked for me. =20 Al =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle Sent: Thursday, September 16, 2010 10:47 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Timing =20 Brian, =20 I was curious, have you verified that the timing mark you believe to be = TDC is actually TDC? I recall it being mentioned before that you can't rely = on the timing marks on the pulleys as sometimes pulleys get swapped from = one engine to another and may not match up correctly. I feel it is worth checking. Lynn H. has described how to locate TDC (check archives). Basically, you remove the leading plug on #1 rotor, rotate crank until = you see an apex seal in the center of the hole, put a mark on the flywheel = (use a temporary pointer for a reference point). Then reverse rotation until = you see another apex seal in the center of the hole, put a 2nd mark on the flywheel. Now split the difference between the two marks and that = should be TDC. Check that it matches the mark on your pulley. =20 =20 Mark S.=20 On Thu, Sep 16, 2010 at 1:33 PM, wrote: I've got a 74 x88 catto. The Co was a result of the band clamp not = sealing completely, but I was going to change to 321 or Inconel any way, so I figured I'd do it now and be done with it. I wanted to be absolutely = sure my timing was correct before going any further down the tunig road. I = checked the timing yesterday, and I was getting the leading plug firing about 10 degrees in advance of those two timing marks lining up at 1400 rpm. I adjusted it so that it is now dead on at 1400 rpm. I set it there as a reference, it's easy to change in Mode 8. There's no reason to go any further in the tuning department unless I can be assured that the timing = is correct. I've got a factory manual, but have not found any reference to = the timng marks or exactly what they signify.=20 =20 Brian Trubee =20 -----Original Message----- From: Don Walker To: Rotary motors in aircraft Sent: Thu, Sep 16, 2010 11:14 am Subject: [FlyRotary] Timing Brian,=20 Timing is one of the few things I didn't have to mess with. Once all = the other problems were taken care of and the CAS was spaced correctly, the engine started and ran fine. What a day! I am using the EC-2 default = setting for the renesis as programed by Tracy and have not even paid much = attention to it or even checked it. Good luck on your next flight. I assume you = are using the EM-2 and EC-2. What prop are you using? You make a good point = on checking for CO. I just have one of those stick on cards and should = borrow a real meter as I am running SS flex tube also.=20 Don=20 RV-8 renesis 76/88 cato=20 =20 --=20 Homepage: http://www.flyrotary.com/=20 Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html=20 =20 ------=_NextPart_000_001D_01CB55C3.D65A7FF0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

To find TDC; rotate to get the = tip seal on #1 rotor half way between leading and trailing plug (count flywheel = gear teeth between, rotate half way back).  You then need to rotate the rotor = 60 degrees in either direction – which means rotating the flywheel = 180 degrees.

 

Worked for me.

 

Al

 

-----Original = Message-----
From: Rotary motors in = aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Thursday, September = 16, 2010 10:47 AM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Timing

 

Brian,

 

I was curious, have you verified that the = timing mark you believe to be TDC is actually TDC?  I recall it being mentioned = before that you can't rely on the timing marks on the pulleys as sometimes = pulleys get swapped from one engine to another and may not match up correctly. =  I feel it is worth checking.  Lynn H. has described how to locate TDC = (check archives).  Basically, you remove the leading plug on #1 rotor, = rotate crank until you see an apex seal in the center of the hole, put a mark = on the flywheel (use a temporary pointer for a reference point).  Then = reverse rotation until you see another apex seal in the center of the hole, put = a 2nd mark on the flywheel.  Now split the difference between the two marks = and that should be TDC.  Check that it matches the mark on your pulley. =  

 

Mark S. 

On Thu, Sep 16, 2010 at 1:33 PM, <bktrub@aol.com> = wrote:

I've got a 74 x88 catto. The Co was a result of the band clamp not sealing completely, but I was going to change to 321 or Inconel any way, so I = figured I'd do it now and be done with it. I wanted to be absolutely sure my = timing was correct before going any further down the tunig road. I checked the = timing yesterday, and I was getting the leading plug firing about 10 degrees in advance of those two timing marks lining up at 1400 rpm. I adjusted it = so that it is now dead on at 1400 rpm. I set it there as a reference, it's easy = to change in Mode 8. There's no reason to go any further in the tuning = department unless I can be assured that the timing is correct. I've got a factory = manual, but have not found any reference to the timng marks or exactly what they = signify.

 

Brian Trubee

 

-----Original Message-----
From: Don Walker <drwalker@gbis.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Thu, Sep 16, 2010 11:14 am
Subject: [FlyRotary] Timing

Brian, 
  Timing is one of the few things I didn't have to mess with. Once = all the other problems were taken care of and the CAS was spaced correctly, the = engine started and ran fine. What a day! I am using the EC-2 default setting = for the renesis as programed by Tracy and have not even paid much attention to = it or even checked it. Good luck on your next flight. I assume you are using = the EM-2 and EC-2. What prop are you using? You make a good point on checking for = CO. I just have one of those stick on cards and should borrow a real meter as = I am running SS flex tube also. 
Don 
RV-8 renesis 76/88 cato 
 
-- 
Homepage: http://www.flyrotary.com/ 
Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.h= tml 

 

------=_NextPart_000_001D_01CB55C3.D65A7FF0--