From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Timing
Date: Fri, 25 Feb 2022 06:42:31 +0800
References: <list-704265@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-704265@logan.com>
Message-Id: <CEFA0F6C-3C31-4D69-BC76-6EEC8110516D@gmail.com>

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.=20=

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:
>=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]=20=

> Sent: Wednesday, February 23, 2022 6:45 PM
> To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> 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
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