I was afraid this would
happen…
I got the new injector
disable switches replaced today and while I was replacing them, I verified that
both primary and secondary switches take pin 30 on the EC-2 to ground, so my
wiring now seems to be correct.
But unfortunately I also
verified that the cold start action does not turn on both sets of
injectors. My engine operates as I described and not as Tracy says it should.
With the engine idling at
about 1400 rpm, and the mixture at about 14.7, I turned off the secondary and
the engine ran a little differently and the mixture went to about 13.0.
When I turned off the primary, the engine died unless I immediately turned it
back on. I normally shut the engine down by first turning off the power
to the injectors and that is just the way it acts.
I then ran the engine up
to 22 inches and turned the primary off and the engine ran just a little
differently but made no effort to shut down. I don’t have much in
the way of readings yet at that power because it is too hard to hold the plane
with just brakes.
Apparently the cold start
system in my EC-2 is not working the way it should. I need to get this
repaired but with Tracy
out of commission, I don’t know how to affect that. I suppose it is
not too much of an emergency because this has been going on for a long
time. :>(
I will try to get some
better data by coarsening the prop so I can hold it better. I just need
to get it above 20 inches and 4000 rpm to get it into that range and hold it
for at least a takeoff amount of time.
Any ideas on how to get
the EM-2 repaired? How long will Tracy
be impaired?
Bill