From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: First engine run -- prop or not?
Date: Fri, 5 Jun 2020 21:29:08 +0800
References: <list-337794@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-337794@logan.com>
Message-Id: <FEE620C7-5B3E-42C5-951D-4E4AB8091C53@gmail.com>

Thanks Bobby.=20
Helpful. I will not use the autotune for the decent.=20
I=E2=80=99m also using a variable pitch prop.
Cheers

Steve

> On 5 Jun 2020, at 9:09 pm, Bobby J. Hughes bhughes@qnsi.net =
<flyrotary@lancaironline.net> wrote:
>=20
> I believe the last update to my removed EC2 supported direct auto =
tune. But it=E2=80=99s been too long ago. My EC3 auto tune works better =
but only tunes to a reasonable operating range. Fine tuning is done =
manually with wideband O2. Auto tune in descent with reduced power never =
worked well. But I suspect the constant speed prop added another =
variable. I don=E2=80=99t remember the lowest operating MP 10=E2=80=9D-12=E2=
=80=9D before fuel cutoff but I could easily hit that area if I closed =
the throttle too much during descent. Tracy added code to my EC3 to =
disallow any program changes for a few seconds after power up. At some =
point I had one fuel map address associated with current pressure that =
would reprogram itself to usually full lean. It was happening maybe 7 =
out of 10 power cycles. I hope you guys get the EC2/3 code working. I =
think many of us would like to see a production round of EC3 boards so =
we could have a tested spare.=20
> =20
> I=E2=80=99m slowing working on the S21 FWF. It will be another 6-8 =
months before the airframe kit arrives.=20
> =20
> Bobby
> =20
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20=

> Sent: Friday, June 05, 2020 6:13 AM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: First engine run -- prop or not?
> =20
> I think you have to have an EM2 along with EC2 in order for the =
Autotune to function. You use the buttons and bar graph to control and =
monitor the actions, Bobby would know better than me. David R. Cook RV6A =
Rotary
> > On June 4, 2020 at 9:01 AM "Stephen Izett stephen.izett@gmail.com" =
<flyrotary@lancaironline.net> wrote:
> >=20
> >=20
> > Hi Finn & all
> >=20
> > Can anyone using an EC2 confirm if the Autotune functions works for =
them?
> > Not the autotune built into the EM3 engine monitor, the EC2 version.
> >=20
> > Thanks
> >=20
> > Steve Izett
> >=20
> > > On 2 Jun 2020, at 10:10 pm, Stephen Izett stephen.izett@gmail.com =
<flyrotary@lancaironline.net> wrote:
> > >=20
> > > Hi Finn
> > >=20
> > > Thanks for the updated EC3 doc. I had an older version.
> > >=20
> > > Steve
> > >=20
> > >> On 2 Jun 2020, at 9:28 am, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
> > >>=20
> > >> Yes, after putting the EC3 into injector test mode and checking =
that each is clicking (screwdriver as stethoscope) and into ignition =
test mode and see that all four plugs are firing, that would be my next =
step.
> > >>=20
> > >> You say you've already checked that the wiring to coils and =
injectors are correct:
> > >> J2-3 Prim Inj 1
> > >> J2-4 Sec Inj 1
> > >> ...
> > >> J2-10 Trail Coil 1
> > >> ...
> > >>=20
> > >> I continuously surprised myself on how often I'd wired something =
wrong, in spite of trying to be very careful about getting it right. I =
wasn't kidding about Murphy working overtime.
> > >> It's easy to get the pin numbering wrong on the connectors.
> > >>=20
> > >> If I were getting desperate, I would remove (one at a time) the =
connectors on the injectors and coils and check continuity from J2 pin =
to the connector pin.
> > >> (You know that the power side are correct because works with EC2)
> > >> Finn
> > >> Got the copper washers in the mail today, but think I'll wait for =
these:
> > >> https://www.ebay.com/itm/293592023854
> > >>=20
> > >> On 6/1/2020 7:30 PM, Stephen Izett stephen.izett@gmail.com wrote:
> > >>> Thanks Finn.
> > >>>=20
> > >>> I had a chance to unpack the dump last night and conquer with =
your reflection.
> > >>> I=E2=80=99m in the dark re the EC3. Checked wiring twice now.
> > >>> I must put a cro on the injectors and coils to confirm they are =
triggering correctly.
> > >>>=20
> > >>> Steve
> > >>>=20
> > >>>> On 1 Jun 2020, at 9:59 pm, Finn Lassen finn.lassen@verizon.net =
<flyrotary@lancaironline.net> wrote:
> > >>>>=20
> > >>>> Program Mode 5 (Reset function)
> > >>>>=20
> > >>>> As of 01-25-13 the EC3 can be used with either the common =
narrowband O2 sensors or the more advanced wideband sensor systems. Be =
sure to verify that your wideband sensor outputs in the range of 0 - +5 =
volts if using a wideband type. To select the type in use, use the power =
up program mode method below:
> > >>>>=20
> > >>>> To select the O2 sensor type , perform the following steps:
> > >>>>=20
> > >>>> 1. Turn the EC3 power off.
> > >>>> 2. Select mode 5 with the Mode Select switch
> > >>>> 3. Select the O2 sensor type using the Cold Start switch: Up =3D =
Wideband, Down =3D Narrowband
> > >>>> 4. Press and hold the Program Store switch.
> > >>>> 5. While holding down the Program Store switch, turn on the =
power switch to the EC3.
> > >>>> 6. Keep holding the Program Store switch for about 1 second, =
and then release it.
> > >>>> 7. Return the Mode Select switch to 0.
> > >>>> 8. Power the EC3 off. When the EC3 is powered up again it will =
be set for the O2 sensor type selected.
> > >>>>=20
> > >>>> Uploaded doc to:
> > >>>> =
https://drive.google.com/drive/folders/1mVzPOxUwcGUlPizxnRF40nUyKBzfT4DC?u=
sp=3Dsharing
> > >>>>=20
> > >>>> PDF version still states that B is automatically programmed =
when A is programmed. Not true. Use the Word doc.
> > >>>>=20
> > >>>> Finn
> > >>>>=20
> > >>>>=20
> > >>>> On 6/1/2020 9:16 AM, Stephen Izett stephen.izett@gmail.com =
wrote:
> > >>>>> Hi Finn
> > >>>>>=20
> > >>>>> How does the mode 5 O2 sensor change work.
> > >>>>> Ive not found this in the EC3 documentation.
> > >>>>>=20
> > >>>>> Steve
> > >>>>>=20
> > >>>>>> On 31 May 2020, at 4:08 am, Stephen Izett =
stephen.izett@gmail.com <flyrotary@lancaironline.net> wrote:
> > >>>>>>=20
> > >>>>>> Hi Finn
> > >>>>>>=20
> > >>>>>> Thats good news.
> > >>>>>> At some point I=E2=80=99ll plug the EC3 in and see what the =
EM3 reports.
> > >>>>>>=20
> > >>>>>> We=E2=80=99re finally back in the air and testing again after =
the last 3 months of responding to COVID here in Perth.
> > >>>>>>=20
> > >>>>>> Last mods included some reshaping of inlets and diffusers and =
tidying up the inlet manifold (grinding smooth some weld that had =
penetrated into the runners).
> > >>>>>>=20
> > >>>>>> Yesterday our Renesis 4 port max fuel flow is up 10% to I =
think a reasonably accurate 18 gal/hr at 7100rpm, 29.5 inch of MAP and =
mixture at best power.
> > >>>>>> We burn our Australian Premium Unleaded with no Ethanol which =
I believe is 6.26 lb/gal so I=E2=80=99m thinking thats around 190hp.
> > >>>>>>=20
> > >>>>>> Cheers
> > >>>>>>=20
> > >>>>>> Steve
> > >>>>>>=20
> > >>>>>>=20
> > >>>>>>=20
> > >>>>>>> On 31 May 2020, at 12:58 am, Finn Lassen =
finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
> > >>>>>>>=20
> > >>>>>>> Wrong engine code solved!
> > >>>>>>>=20
> > >>>>>>> I looked at the dates of files in the EC3CL folder. These =
files were not updated to the date I programmed the EC3:
> > >>>>>>> ECCL8.cof
> > >>>>>>> ECCL8.map
> > >>>>>>> ECCL8.O
> > >>>>>>>=20
> > >>>>>>> <mcppihngfoiehjon.png>
> > >>>>>>>=20
> > >>>>>>> So I started from scratch:
> > >>>>>>>=20
> > >>>>>>> Unzipped the EC3CL folder.
> > >>>>>>>=20
> > >>>>>>> Set ENG =3D A8; LS2COIL, LGSEC and WIDEBAND to 1 and rest to =
0.
> > >>>>>>>=20
> > >>>>>>> Did "Erase", "Clean" and "Build All" and "Program" in MPLAB =
and reinstalled chip for controller A.
> > >>>>>>>=20
> > >>>>>>> Now EM3 correctly shows "A8" for engine code.
> > >>>>>>>=20
> > >>>>>>> Changed to narrow band using mode 5, and EM3 display =
correctly changed from 16 to 12 for ENGINFO.
> > >>>>>>>=20
> > >>>>>>> I must have chosen the "Make" option in MPLAB when I first =
programmed the chips, I guess.
> > >>>>>>>=20
> > >>>>>>> Unfortunately I must have damaged the controller B CPU chip =
when handling it (MPLAB reports device ID =3D 0) and will have to order =
a new one.
> > >>>>>>>=20
> > >>>>>>> Finn
> > >>>>>>>=20
> > >>>>>>> Still waiting for the $1.79 shipped copper washers to arrive =
in mail. Maybe I should bite the bullet and order five (six) Stat-O-Seal =
washer/O-rings at $8.56 per pack of two. $25.68 total :(
> > >>>>>> --
> > >>>>>> Homepage: http://www.flyrotary.com/
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http://mail.lancaironline.net:81/lists/flyrotary/List.html
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> > >>>>=20
> > >>>> --
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> > >>>=20
> > >>> --
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> > >>=20
> > >>=20
> > >> --
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