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Hi Ed,
Some very good tips. Unfortunately I did not install the injector switches.
I viewed that as another failure point. I did wire my injector power on
separate breakers though, so there may be an option there.
Compression seems to be good, with even pops as I rotate through the prop.
I'm not sure about the reading though. My compression gauge doesn't seem to
be working correctly as far as holding the peak compression. Watching the
needle bounce looks consistent on each pulse, but since all of my historical
data was on peak hold, it doesn't tell me much. The little needle valve
seems to be the issue. I tried replacing it with on from AutoZone, but it
was destroyed on the first test.
On the injector test, and ignition test, I'm not sure that I have those
features, or if I do, I'm not sure how to get in the test mode. I take
another look at my manual, but I know that the software had been updated
since I bought the EC2. About 18 months ago, I believe.
Regards,
Steve Brooks
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of Ed Anderson
Sent: Friday, November 23, 2007 10:12 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Hard Starting
Steve, the first thing I would do is:
1. Check that the EC2 injector simulation mode (mode1) is firing all the
injectors
2. Check that the EC2 Ignition Simulation mode (mode8) is firing all the
plugs
I don't know if this could possibly be the case with you, but since you were
doing some electrical work, I'll suggest it anyway.
Turn off one set of your injectors and try the mixture control. If you find
the mixture control is not acting as before, the system could be in "cold
start" mode. I damaged the EC2 once by trying to plug in an electrical
device to interface with the EC2. The engine would run on all four
injectors (and then poorly at low rpm) if I turned the mixture max lean
(CCW), however, it seem to function properly with one pair of injectors
turned off.
Later Tracy discovered that I had fried the B controller and had caused the
A controller to go into "cold start" mode. That caused too much fuel flow
with 4 injectors, but when I cut out one pair, then the mixture controlled
exercised its normal control
So you might just turn off one pair and see (I'd recommend turning off your
secondary).
If that does not seem to help, I think the next thing I would check is the
compression of my rotors. If for some reason you have some faces with low
compression, that can hinder starting.
Hope this helps
Ed
----- Original Message -----
From: "Steve Brooks" <cozy4pilot@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, November 23, 2007 8:39 AM
Subject: [FlyRotary] Hard Starting
>I have an issue all of the sudden with my 13B Turbo not wanting to start.
> It will fire occasionally, but just won't start running.
> If I am persistent enough (and have enough battery), It will finally
> start,
> but does not run well. Seems to have a miss in it. It runs better if I
> turn
> the mixture to lean, in fact, I can turn the mixture all the way counter
> clock wise. I think that it used to die when I would do that. When I
> switch to controller B, it runs better for a few seconds, and then goes
> back
> to missing. It doesn't start any easier on controller B either.
>
> I haven't done a lot of troubleshooting on it yet, but wondered if anyone
> has had a similar issue. I did replace the spark plugs, but that didn't
> seem
> to help any. I still have the stock turbo on it, so, maybe the turbo is
> starting to go. It also started this problem, after I fixed a problem
> with
> the starter. My Cessna ignition switch got some water in it and it got to
> where it wouldn't engage the starter. I took it apart, and cleaned all of
> the contacts to fix it. I have that switch also wired to do the coil test
> when you select mag1 or mag2 on the switch. The coil test only works on
> controller B though, so I don't think that would affect controller A.
>
> I guess that maybe my next step is to verify that I'm getting spark on all
> plugs, and then maybe try removing the plumbing to the throttle body, and
> try starting it then. That should verify if my turbo is failing, and
> restricting air flow.
>
> Steve Brooks
> Cozy MKIV 13B Turbo
>
>
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