From: "steve Izett" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: Finding the gremlin
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Date: Sun, 7 Aug 2016 08:21:00 +0800
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>

Thanks Tracy
The NOP indication is directly linked to RPM - about 6K (Dynon miss =
reads at the same point). But no missing occurs at this point, engine =
continues smooth.
When the gremlin strikes (all hell breaks loose) it does appear clearly =
related to load - just before 24=E2=80=9DHg.

Ive never checked the timing with a light or whats in the EC2 (dumb), =
just thought I'd zero=E2=80=99d all parameters in non volatile memory.
I=E2=80=99m going past the hangar today so will fire her up and read the =
static timing setting via the EM3.

As far as Earths. I have a noisy one and a quiet one and one for the =
gear pump.
Each has 10 gauge wire 26 inches back to battery.
Each Earth point is an AN bolt and nut clamping all those paticular =
earths lugs either side of the 10 gauge earth lug. All lugs are =
soldered.

Power Busses are: Engine, Flight and Gear (30 amp pump) each fed by 10 =
gauge wire 36 inches back to battery.
In order to easily get to all electrical systems I opted for a two buss =
blade fuse arrangement. (The gear power is a 30amp breaker)
This does mean on the engine buss, EC2, EM3, Coils, Injectors, Pumps, =
are fed from the same point via 10 gauge wire rather than the EC2 =
independently back to to battery.

Thanks Steve and Bobby
I kept and ran the injector lines and coil trigger lines independently =
seperate from each other and all other wires where possible.
eg. Coils go to the right and through the firewall. Injectors to the =
left and though the firewall.

I do pull the throttle each time the gremlin strikes trying to minimise =
damage to the drive line.

Last night I had the thought of making a DB37 breakout so I can easily =
get a CRO onto and monitor any input/outputs to the EC2.=20
I=E2=80=99ll do this before next Friday enabling testing of electrical =
systems.

I=E2=80=99ll check the CAS signal amplitude and check the injector =
signals.
I would like to get a video recorder, recording everything as I always =
forget to check some parameter each time I=E2=80=99m testing.

Steve


> On 7 Aug 2016, at 4:12 AM, Tracy <flyrotary@lancaironline.net> wrote:
>=20
> Steve wrote:
> "Note to Tracy. - Did you incorporate in your code any way of knowing =
if the EC2 entered a watchdog routine?"
>=20
> Sort of.  That NOP you are seeing is a good indication that the ec2/3 =
has been jolted out of its normal operating loop and is trying to =
reboot.  The backfiring is too.    Electrical noise (probably in the =
grounding scheme of electrical wiring layout) is the most likely =
candidate. =20
>=20
> Tracy
>=20
> Sent from my iPad
>=20
>> On Aug 5, 2016, at 17:31, steve Izett <flyrotary@lancaironline.net> =
wrote:
>>=20
>> Note to Tracy. - Did you incorporate in your code any way of knowing =
if the EC2 entered a watchdog routine?
>=20
> --
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