I tried to charge the
batteries yesterday (2 of them) thinking that they would be down after sitting
for 6 months. They were both fully charged! The battery voltage was
about 12.6V per the EM-2 when I did the start. The voltage rose to 14.5 V
when I turned the alternator on.
I will check grounds
tomorrow. I also want to make certain that the fuel pressure is the gage
and not the fuel filter. Turning on both EFI pumps brought the pressure up
to 45 psi. but I never got the previously set pressure with only one pump
on.
I suspect the O2 sensor
has crapped out. I need to know what reading you get when that
happens. Mine has maxed out on the graph. I have run the
engine maybe 40 hours? I have about 25 flight hours on it and have
never had anything but non ethanol Mogas in it. It should still be good,
but???
Bill
B
From:
Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of bktrub@aol.com
Sent: Sunday, January 15, 2012 8:45
PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Some assistance
please!
I'd say it's almost
100% electrical, probably more than one thing. Check your charging voltage and
battery voltage, and especially check all the grounds from your EM2 and EC2. I
had an iffy ground on my EM2- it was not tightened and I was getting readings
all over the map(no pun intended)
-----Original
Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To:
Rotary motors in aircraft
<flyrotary@lancaironline.net>
Sent: Sun, Jan 15, 2012 3:25
pm
Subject: [FlyRotary] Some assistance please!
I have had to let my
plane set in the hangar for about 6 months due to some family problems.
Today I pulled it out and cranked it up with the intention of making a
flight.
I encountered several
problems.
- the mixture graph on the EM-2 rose
to the top and stayed there. The engine would respond to changes in the
mixture knob on the EC-2, but not the graph. I suspect that the O2
sensor has failed. Is this max out of the graph a symptom of O2
failure?
- the oil pressure was fluctuating
rapidly between 20 and 70 for quite some time after the start. Could
this be just the fact that all the oil had drained during the shut down?
I had checked the oil level yesterday and it was down about a half quart, so
plenty of oil. It seemed to settle down somewhat after the plane warmed
up. OAT was 68 F.
- the fuel pressure was also
fluctuating between the teens and 45. I don’t know what the real
pressure was but plan to try and check it with a mechanical gage
tomorrow.
- oh and the strobe quit working as
well. When I turned the master on to check fuel level, I noticed the
strobe didn’t work. I flipped the switch a couple of times and the
strobe made about 6 or 7 strobes, then quit for good.
Maybe all these things
are related?