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Tracey,
You
describe the symptom exactly. It does run good above 3000 RPM.
I had the cover off of the rear area where the EC2 is mounted. I suppose
that it's possible that I moved the map sensor connections.
I'm
going to have to make a list of things to check on my next trip to the
airport.
Regards,
Steve
Brooks
P.S. -
I really enjoyed the Rotary Roundup.
Assuming you do get spark on all the plugs (no dead coils, wires, etc),
one thing to check would be the map sensor connections. If they are
loose, leaking or off, the mixture would be super rich and cause rough
running. This fits several symptoms and would explain why both A & B
are the same.
If it runs better at high throttle, that would be another clue.
Tracy
On Nov 23, 2007 8:39 AM, Steve Brooks < cozy4pilot@gmail.com> wrote:
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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