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?