Today's Message Index:
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1. 08:07 AM - Re: Electrical Problem with my 3300 (Jabiru USA)
2. 10:15 AM - Re: Cylinder cooling issues - Guidance from Jabiru (japhillipsga@aol.com)
Message 1
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| Subject: | Electrical Problem with my 3300 |
Jeff,
It seems that most of the complaints about alternators not charging are the
result of the yellow wire or the connectors on that wire.
Pete Krotje
Jabiru USA Sport Aircraft, LLC
-----Original Message-----
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of Jeffrey J
Paris
Sent: Thursday, September 13, 2007 7:23 PM
Subject: Re: JabiruEngine-List: Electrical Problem with my 3300
<jeffrey-j-paris@excite.com>
Pete,
Amazing it was the Yellow Wire! I put a 30 amp fuse in line and it must
have gotten some moisture in it and the fuse blew/cooked in the supposed
weather proof boot it came with. The stators and the copper wiring were
shiny and when we fired the engine up my readings on the voltmeters went up
to 14.3 volts.
Thanks,
Jeff
--- On Sun 09/09, < info@usjabiru.com > wrote:
From: [mailto: info@usjabiru.com]
Subject: Re: JabiruEngine-List: Electrical Problem with my 3300
info@usjabiru.com<br><br>Jeff,<br><br>As we discussed on the phone the other
day you have three possible cuases<br>to investigate: alternator,
regulator, or wiring. What did you find?<br><br>The most common cause is
corrosion in the crimp connections connecting the<br>yellow wire to the 12
volt system followed by corrosion in other crimp<br>connections in the
system. I would replace those crimp connectors as a<br>first step after
checking that the alternator is working.<br><br>To check alternator
disconnect from regulator and test between leads with<br>a continuity meter.
If continuity exists then the alternator is junk. If<br>no continuity then
run engine with a multi meter hooked up and set to read<br>AC voltage. If
10 to 30 volts (depending on rpm) is present then<br>alternator is
ok.<br><br>If alternator is working and all connections are good then the
regulator<br>is probably bad. This happens once in a while but bad wiring
or crimp<br>connections are the culprit 90% of the time.<br><br>Pete
Krotje<br>Jabiru USA<br><br><br><br><br><br>> --> JabiruEngine-List message
posted by: "Jeffrey J Paris"<br>>
<jeffrey-j-paris@excite.com><br>><br>><br>><br>><br>> Dear Jabiru
Listers,<br>><br>> My name is Jeff Paris. I built, own and fly a Zentih
Zodiac CH601XL<br>> powered by a Jabiru 3300 engine and this is my first
time on this list and<br>> I was hoping for some answers about a problem I
believe I'm having with my<br>> airplane.<br>><br>> Two weeks ago I was
flying home from Canada and had to land in Rochester<br>> to setle with US
Customs. As I was making my way into the Class C<br>> airspace the tower
was having trouble reading my transmissions. I also<br>> noticed that the
orange/red warning flag in my turn coordinator was<br>> pulsing in
approximate unison with my strobe system as it flashed. Once on<br>> the
ground the tower read me loud and clear, but I had turned off my<br>>
transponder and GPS
to get some wattage back for transmission.<br>><br>> After customs finished
with me I was not able to start the plane, dead<br>> battery? I pulled the
cowls for good measure and a inspection under the<br>> hood and nothing was
out of the ordinary in terms of loose connections or<br>> damaged wire. I
jumped the plane and headed back to my home airport. I<br>> kept my eye on
my Xerion Engine analyzer voltage readout as well as my<br>> Dynon readout:
They read at the start of the trip about 12.1 volts and<br>> decreased to
about 11.7 volts. Normally I'm seeing 14.2 volts at cruise<br>> power
indicated on each gauge.<br>><br>> This week I pulled the cowls and did
another inspection in whih I tested<br>> the battery with my multimeter and
I was getting a reading of about 11.9<br>> volts. I then thought maybe my
Odyssey PC625 dry cell Battery had a bad<br>> cell and was not able to
charge itself properly. Of course I went out and<br>> got a replacement
battery and
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Message 2
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| Subject: | Re: Cylinder cooling issues - Guidance from Jabiru |
Pat, we only asked about the barn in an attempt at humor, but I now see it was
inappropiate. I am happy you were not injured and your plane is repairable. I
recommend you make and use a better starting/taxi checklist and hope you accept
my apology at my failed dark humor, Best regards, Bill
-----Original Message-----
From: pat ladd <pj.ladd@btinternet.com>
Sent: Thu, 13 Sep 2007 1:43 pm
Subject: Re: JabiruEngine-List: Cylinder cooling issues - Guidance from Jabiru
Pat, how big was the barn ?>>
?
Big enough to see but too big to avoid.
I fell victim to the Jabi policy of the throttle going to full throttle in case
of failure.? I had been flying a Challenger with Rotax 503 for many years with
no need to adjust the throttle friction.
In the Kolb there is a friction adjustment under the pilots seat and I obviously
had not tightened it quite enough. The choke is high behind my right shoulder.
In my left hip trouser pocket I had my credit card case. In starting I needed
to set or reset the choke several times and each time I twisted in my seat
the wallet nudged the throttle open. The Jabi propensity to go to open throttle
did the rest.
The engine fired and she went like a bat out of hell across the farm yard. My wife
who had helped me rig, and thank heaven was standing behind the wing swears
that I took off , in 30 yards, before impacting an RSJ (I beam) supporting the
corner of the barn about halfway along the port wing.
I had intended only to taxi onto the field to fuel up, a matter of a hundred yards,
and had strapped in? only as a reflex action. Very lucky as otherwise I would
have gone from being pushed back in the seat by the acceleration to a 150
degree swing and sudden deceleration as I hit the parked car, which would certainly
have thrown me around the cockpit, (its a side by side 2 seater) with resulting
injury.
Thank goodness the engine was high and behind the wing and the prop hit nothing.
If it had been a tractor set up it would have meant new prop and probable shock
loading of the engine to deal with.
?
Cheers
?
Pat
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