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Just a brain fart, but it sounds to me like dwell might be useful troubleshooting tool. Do they still make dwell meters? If someone like Buly could measure the dwell across his primary and secondary injectors and compare it for start/idle figures tested by guys who have engines that run right (or specs from Tracy), it might give some useful insights like the secondarys are running at startup and idle or not at all or primarys have way too much pulse width or etc
.
Or perhaps just confirm what you already know? ... Jim S.
atlasyts@bellsouth.net wrote:
Thank you Ed and Steve. Looks like my understanding of the f. injection is right. I checked the spark and I'm getting very good spark at the spark plugs, but again they get dripping wet right away, even with secondarys turned off? I'm not using the "cold start" feature.
I restored the factory settings on the EC2. Maybe I'll start reducing the injector flow in mode3?
Buly
From: "Steve Brooks" <prvt_pilot@yahoo.com>
Date: 2005/10/15 Sat AM 06:06:10 EDT
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: Flooding on startup....
Buly,
I believe that you are right about the EC-2 providing an intermittent ground
to pulse the injector. With that said, when the injector isn't being turned
on, you would see the 12 V on both leads of the injector. The supply side
is obviously 12 V and also on the other because the injector has a fairly
low resistance, and the EC-2 lead is not pulling it to ground (open).
I hope that makes some sense.
Maybe someone else can explain it better.
Steve Brooks
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of atlasyts@bellsouth.net
Sent: Friday, October 14, 2005 11:55 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Flooding on startup....
Tonight I spent some time checking around the engine. With both inj.
switches on, I have 12V on all the wires going to the injectors? As far as I
know, there is one 12V feed from the switch to each P/S injectors and one
wire for each injector comming from the EC2 providing intermitten ground. If
I'm right, how come there is the same voltage on all the wires?
Buly
BTW few months ago the engine was running perfect? I have no idea what
caused all this trouble?
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