From: "Stephen Izett stephen.izett@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: Fwd: [FlyRotary] Re: Engine miss
Date: Sun, 12 Jan 2020 07:55:54 +0800
References: <list-13383447@logan.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
In-Reply-To: <list-13383447@logan.com>
Message-Id: <1B0D8976-C50E-4654-9765-F16E8256B31E@gmail.com>

Thanks Bobby

If I cant fix the RFI at the Source I=E2=80=99ll pull the EC2 and check =
it.

Did Tracy ever explain his "long answer" as to why Processor A has had =
problems and not B?
All I can think of is the intake temp input.

I=E2=80=99m wondering how do you identify the EC2 processors as A & B =
when I=E2=80=99m looking at the PCB?

Cheers

Steve Izett

> On 12 Jan 2020, at 12:43 am, Bobby J. Hughes bhughes@qnsi.net =
<flyrotary@lancaironline.net> wrote:
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> Steve,
> =20
> I believe Tracy started adding the capacitor to all newly built EC2/3 =
so you may already have it. It=E2=80=99s very small and was soldered =
across two of the three MAP sensor legs on the EC2. Not sure if it was =
installed the same way on the EC3=E2=80=99s.=20
> =20
> Bobby
> =20
> From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]=20=

> Sent: Friday, January 10, 2020 9:20 PM
> To: Rotary motors in aircraft
> Subject: [FlyRotary] Re: Fwd: [FlyRotary] Re: Engine miss
> =20
> Thanks Andrew.
>=20
> So Tracy never explained the =E2=80=9Clong story=E2=80=9D?
> Did you add the caps and did they help or not?
> I=E2=80=99m thinking not, as you mentioned changing to a better shield =
to the CAS=20
>=20
> Steve
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> > On 11 Jan 2020, at 10:30 am, Andrew Martin andrew@martinag.com.au =
<flyrotary@lancaironline.net> wrote:
> >=20
> > Steve. Here is the post from Tracy regarding engine miss on A =
computer.
> > Andrew
> >=20
> > ---------- Forwarded message ---------
> > From: Tracy <flyrotary@lancaironline.net>
> > Date: Tue, 26 Jul. 2016, 11:22 pm
> > Subject: [FlyRotary] Re: Engine miss
> > To: Rotary motors in aircraft <flyrotary@lancaironline.net>
> >=20
> >=20
> > HI Andrew,
> > The exact cause of A having the problem and not B is a long story =
but the fix is to install a .1 uF capacitor across the ground and output =
pins (1 and 2 I think) of the A controller MAP sensor. I'd do it for you =
but I'm away from my shop until mid Oct.
> >=20
> > Tracy Crook
> >=20
> > Sent from my iPad
> >=20
> > > On Jul 26, 2016, at 03:56, Andrew Martin =
<flyrotary@lancaironline.net> wrote:
> > >=20
> > > I must have really upset Murphy, I just cannot seem to get a break =
with this plane.
> > >=20
> > > I need help from an EE or anyone who gets a kick from lectrics.
> > >=20
> > > Since putting the engine back in the plane I have an issue =
whenever I push the PTT the engine runs like crap. Finger off PTT all =
good immediately. And this only happens on A computer, B seems =
unaffected on EC2, how can this happen?
> > >=20
> > > A&B are tuned slightly different, B is still at pre engine rebuild =
state, but I cannot see how that would be a factor.
> > >=20
> > > I just cannot see how the Radio transmission can affect one =
computer & not the other, they are identical aren't they, in the same =
box connected to the same wires. Is it possible I've damaged the EC2 =
sometime in the past and just not noticed it, how would I check it now?=20=

> > >=20
> > > Andrew
> > >=20
> > >=20
> > > --=20
> > > Regards
> > > Andrew Martin
> > > Martin Ag
> >=20
> > --
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