X-CGP-ClamAV-Result: CLEAN X-VirusScanner: Niversoft's CGPClamav Helper v1.23.0 (ClamAV engine v0.103.0) X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Stephen Izett stephen.izett@gmail.com" Received: from mail-pj1-f51.google.com ([209.85.216.51] verified) by logan.com (CommuniGate Pro SMTP 6.3.9) with ESMTPS id 735142 for flyrotary@lancaironline.net; Tue, 01 Mar 2022 04:57:07 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.216.51; envelope-from=stephen.izett@gmail.com Received: by mail-pj1-f51.google.com with SMTP id j10-20020a17090a94ca00b001bc2a9596f6so1750938pjw.5 for ; Tue, 01 Mar 2022 01:57:09 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:mime-version:subject:date:references:to:in-reply-to:message-id; bh=GqJa7SI6jj0BvjHUDo/KtFKxUrcMnyOEX4ZkqHVUK58=; b=Z3/jFt1VUQkb65GYRLjkvgfOfmMRkZBwtMfgRnj+BfMPbbR+jKMYaRk0EpszRSARGx sufN1T0HF3x8fOx4Zt8agthrmteORSjyJYigrdsEh2Ep8IHEJGdekHtgQLWIMlBHo/SY EtJsx7h/B1GJKT8XbmRJqeRBcIFNHbEjl5sqQJkRYnRF5fDeoU8mV7DiGSGEAihUIjHo v6ds5xNZ2FGb0aQ138TBCeiqtapYl4jSpyMWxLi05zW1LM90yB/q2KdM/s6REVS/pxjA FYeTyESq5xkkx3LTuqeSYMSTndGTmkpctmAoIatDadzesjWTWvnBTFoaXnAcVbbO5qjv kXyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:mime-version:subject:date:references:to :in-reply-to:message-id; bh=GqJa7SI6jj0BvjHUDo/KtFKxUrcMnyOEX4ZkqHVUK58=; b=t21qdIqP5EwSqN46kN6PHr266Z9HFCYPDouJQUtLlx1vRxyXZnTd3zT9aOpg+J5x/y CrKR5Y6lccWjLf4bWsohUYcfcHUgqU/eub6/RJPqE1ceNrnyJL62t6aAPrGVtiHhFSap 3bAU+VXoQndwADpDz2CRrygY6XNJ855Vs84hKoX9Xi2XtcpPHZq+k0cg7Qv/pFQ8qkAg Q+TZu0+kliF/2w5wCweBKVMYVoDpEidPMA0W7wi9jyC0TBLljFt+0vM/UrhKQGSQzTxj nBm9Hn6EGctIf2m4DGBAeGHXWFG669Z0Gq6dsw8HeYsKDrOjyeoK4nkxoeP3JDfyl1Ar I6iA== X-Gm-Message-State: AOAM533/l5pe05fDQmnmGhMgRkzwqwS4XA49yPXn7bppv/QpItuktATo JY7nJ6xAAQiHad3nwgL0LFjs4+PDmpOu1w== X-Google-Smtp-Source: ABdhPJwYPxis3rVnqjv7mkEL+syzHUe/LZnIGnaLanBeXYEQ9AZ5EEgHacsaE+2I6QAKfa0A3Ojg0w== X-Received: by 2002:a17:90a:fe4:b0:1bc:1db6:c77f with SMTP id 91-20020a17090a0fe400b001bc1db6c77fmr20977009pjz.184.1646128611165; Tue, 01 Mar 2022 01:56:51 -0800 (PST) Return-Path: Received: from smtpclient.apple (220-235-100-4.dyn.iinet.net.au. [220.235.100.4]) by smtp.gmail.com with ESMTPSA id u8-20020a056a00098800b004f36335ecf0sm16924788pfg.146.2022.03.01.01.56.49 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 01 Mar 2022 01:56:50 -0800 (PST) Content-Type: multipart/alternative; boundary="Apple-Mail=_DB9D451B-C1BA-4BA7-8CA3-8833F0FD640B" Mime-Version: 1.0 (Mac OS X Mail 15.0 \(3693.40.0.1.81\)) Subject: Re: [FlyRotary] Timing Date: Tue, 1 Mar 2022 17:56:46 +0800 References: To: Rotary motors in aircraft In-Reply-To: Message-Id: <820A6F71-4639-428B-ADC2-56818B4C9C94@gmail.com> X-Mailer: Apple Mail (2.3693.40.0.1.81) --Apple-Mail=_DB9D451B-C1BA-4BA7-8CA3-8833F0FD640B Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Hi Guys I realised I made a mistake with reading the timing. I was adding the 5 deg ATDC, instead of adding -5 deg.=20 Today I sought to check the maximum advance of the timing. Nearly blew Dad of the front of the Glasair! With the prop pitch full fine the manifold pressure was only 14.5=E2=80=99= =20 At 5000 rpm it appeared the advance had maxed out at approx 23 deg BTDC. At 1750rpm idle timing was approx 8 deg BTDC I will now try and fine tune the timing in flight and see if can take = any further advance. Can anyone comment on their maximum advance of their timing? Thanks Steve Izett > On 26 Feb 2022, at 10:17 am, Stephen Izett stephen.izett@gmail.com = wrote: >=20 > Thanks Dave. >=20 > I=E2=80=99m guessing a feature like that adjusts the flash and enables = you to dial in what you want and then your just looking for the = reference marks to line up. > I would imagine that makes it easier instead of having to mark out = whatever your reading from. >=20 > I=E2=80=99d still like to have a definitive process to move forward = with from Tracy as the designer. >=20 > Cheers >=20 > Steve >=20 >> On 26 Feb 2022, at 8:00 am, Pam & Dave Williams padajute@idcnet.com = > wrote: >>=20 >> Hello Steve, >>=20 >> I used the stock timing marks with a timing light. My timing light = has an advance\retard feature. Yes very windy!!! >>=20 >> Thanks, >> Dave Williams >>=20 >> -----Original Message----- >> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net = ]=20 >> Sent: Thursday, February 24, 2022 4:43 PM >> To: Rotary motors in aircraft > >> Subject: [FlyRotary] Re: Timing >>=20 >> Thanks guys. >>=20 >> Dave, did your measure the timing with a timing light and with the = prop on? >> Must have been pretty windy getting that data! >>=20 >> I=E2=80=99ll mark up the ring gear with a TDC mark this morning and = measure the current EC2 base Mode timing >>=20 >> Which method do people prefer to get TDC? I think I have read about = these 3 methods. >> 1. Rotor #1 equal Screwdriver depth to rotor face through both plug = holes 2. Rotor #1 volume null using water in a tube - I think this might = be from Lynn H 3. Rotor #2 bisecting Apex seal across T & L spark plug = hole >>=20 >> Can anyone else tell us their nominal timing at idle. Ours is = ~1800rpm.=20 >> And particularly anyone running a 4 port renesis like Tracy=E2=80=99s = RV4. >>=20 >> Cheers >>=20 >> Steve >>=20 >>> On 25 Feb 2022, at 6:07 am, Pam & Dave Williams padajute@idcnet.com = wrote: >>>=20 >>> Hello Steve, >>>=20 >>> My timing is locked in at 35 degrees before top dead center from = idle to 6500 RPM. You are on the right track because retarded timing = will raise exhaust temperature. I have a 13b with Tracy's EC2\EM2 and = the RD-1AB redrive.=20 >>>=20 >>> Thanks >>> Dave Williams >>>=20 >>> -----Original Message----- >>> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] >>> Sent: Wednesday, February 23, 2022 6:45 PM >>> To: Rotary motors in aircraft >>> Subject: [FlyRotary] Timing >>>=20 >>>=20 >>> Hi friends >>>=20 >>> On my last flight I experienced high indicated EGT=E2=80=99s so as = part of looking into this I would like to check my timing. >>>=20 >>> I have a Renesis engine and Tracy=E2=80=99s EC2.=20 >>> In his A8 (Renesis) version of the handbook under Mode#8 Timing = Adjustment it says to refer to =E2=80=98Initial Timing Adjustment=E2=80=99= , however I can=E2=80=99t find any such instructions in this version, = probably because it has a fixed position CAS.=20 >>> Can anyone enlighten me on what the static timing should at a given = idle rpm? >>>=20 >>> Much appreciated. >>>=20 >>> Steve Izett >>>=20 >>>=20 >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html >>>=20 >>>=20 >>> -- >>> Homepage: http://www.flyrotary.com/ >>> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html >>=20 >>=20 >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html >>=20 >>=20 >> -- >> Homepage: http://www.flyrotary.com/ >> Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html = >=20 >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html = --Apple-Mail=_DB9D451B-C1BA-4BA7-8CA3-8833F0FD640B Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Hi = Guys

I realised I = made a mistake with reading the timing.
I was = adding the 5 deg ATDC, instead of adding -5 deg. 

Today I sought to check = the maximum advance of the timing.
Nearly blew Dad = of the front of the Glasair!
With the prop pitch = full fine the manifold pressure was only 14.5=E2=80=99 
At 5000 rpm it appeared the advance had maxed out at approx = 23 deg BTDC.
At 1750rpm idle timing was approx 8 = deg BTDC

I = will now try and fine tune the timing in flight and see if can take any = further advance.
Can anyone comment on their = maximum advance of their timing?

Thanks

Steve Izett




On 26 Feb 2022, at 10:17 am, Stephen Izett stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:

Thanks Dave.

I=E2=80=99m guessing a feature like that adjusts the flash = and enables you to dial in what you want and then your just looking for = the reference marks to line up.
I would imagine that makes it easier instead of having to = mark out whatever your reading from.

I=E2=80=99d still like to have a definitive process to move = forward with from Tracy as the designer.

Cheers

Steve

On 26 = Feb 2022, at 8:00 am, Pam & Dave Williams padajute@idcnet.com <flyrotary@lancaironline.net> wrote:

Hello Steve,

I used the stock = timing marks with a timing light. My timing light has an advance\retard = feature. Yes very windy!!!

Thanks,
Dave Williams

-----Original = Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] 
Sent: = Thursday, February 24, 2022 4:43 PM
To: Rotary motors in = aircraft <flyrotary@lancaironline.net>
Subject: = [FlyRotary] Re: Timing

Thanks guys.

Dave, did your measure the timing with a = timing light and with the prop on?
Must have been pretty = windy getting that data!

I=E2=80=99ll mark = up the ring gear with a TDC mark this morning and measure the current = EC2 base Mode timing

Which method do people = prefer to get TDC? I think I have read about these 3 methods.
1. Rotor #1 equal Screwdriver depth to rotor face through = both plug holes 2. Rotor #1 volume null using water in a tube - I think = this might be from Lynn H 3. Rotor #2 bisecting Apex seal across T & = L spark plug hole

Can anyone else tell us = their nominal timing at idle. Ours is ~1800rpm. 
And = particularly anyone running a 4 port renesis like Tracy=E2=80=99s = RV4.

Cheers

Steve

On 25 Feb 2022, at 6:07 am, Pam & Dave Williams padajute@idcnet.com = <flyrotary@lancaironline.net> wrote:

Hello Steve,

My timing is locked = in at 35 degrees before top dead center from idle to 6500 RPM. You are = on the right track because retarded timing will raise exhaust = temperature. I have a 13b with Tracy's EC2\EM2 and the RD-1AB = redrive. 

Thanks
Dave Williams

-----Original Message-----
From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: = Wednesday, February 23, 2022 6:45 PM
To: Rotary motors in = aircraft <flyrotary@lancaironline.net>
Subject: = [FlyRotary] Timing


Hi = friends

On my last flight I experienced = high indicated EGT=E2=80=99s so as part of looking into this I would = like to check my timing.

I have a Renesis = engine and Tracy=E2=80=99s EC2. 
In his A8 = (Renesis) version of the handbook under Mode#8 Timing Adjustment it says = to refer to =E2=80=98Initial Timing Adjustment=E2=80=99, however I = can=E2=80=99t find any such instructions in this version, probably = because it has a fixed position CAS. 
Can anyone = enlighten me on what the static timing should at a given idle rpm?

Much appreciated.

Steve Izett


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