Today's Message Index:
----------------------
1. 06:21 AM - Re: battery location change (nuckollsr)
2. 06:26 AM - Jabiru 3300 OV protection (Robert L. Nuckolls, III)
3. 08:05 AM - Re: Speaking of Wig Wags (Speedy11@aol.com)
4. 09:18 AM - Re: Speaking of Wig Wags... (jonlaury)
5. 11:05 AM - Re: Squeaky Wheeling (jonlaury)
6. 01:27 PM - Re: Jabiru 3300 OV protection (Peter Harris)
7. 07:10 PM - Re: Jabiru 3300 OV protection (Robert L. Nuckolls, III)
8. 08:27 PM - Re: Jabiru 3300 OV protection (Peter Harris)
Message 1
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Subject: | Re: battery location change |
I have the 2 alternator , 2 batteries, setup in my Glasair. this has been a problem
free system since it's inception. I am needing to change the location of
the batteries for weitht and balance and interference problems. Currently the
batteries and the all the control solenoids are on the engine side of the firewall
with 2 power and 1 gnd thru the firewall connections. Do I need to add
2 more thru the firewall connections to get the power back out to the solenoids
from the repositioned batteries or is there a more efficient way to reconfigure
the system.
You'll need fat-wire feeders from each battery plus one for a ground to bring the
connections aft to the batteries. I'd leave the crossfeed contactor on the
firewall and use it as a tie-point for the battery feeders. Battery contactors
and any battery busses move back with the batteries.
Bob . . .
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=318815#318815
Message 2
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Subject: | Jabiru 3300 OV protection |
Hi Bob,
Do you have a protection circuit to protect against
regulator-rectifier failure for the PM alternator as used on the
Jabiru 3300? I have installed the OV crowbar circuit but does this
stop voltage excess say 15-20V? I am getting interference affecting
the ECU as I have fuel injected the engine. I will test the Vreg
output in a couple of days but need to be sure I have this protection
if possible anyway.
Thanks
Peter
Quickie Q-200Jabiru
It would the be the same technique illustrated
in . . .
http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z16M.pdf
OV protection systems for 14v airplanes are designed
to shut the alternator down and latch it off if the
bus voltage exceeds 16.0 to 16.5 volts.
Have you had a voltmeter on the system. This is the
FIRST thing you do for iniital operations of any new
system . . . see if the alternator is even working
and deduce the voltage regulator setting.
Bob . . .
Message 3
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Subject: | Re: Speaking of Wig Wags |
Tom,
You can't wig-wag those HIDs.
Stan Sutterfield
I purchased and installed a new, identical wig wag unit from a local auto
parts
store (Tridon EL13 A-2) No change...
I am using two Trail Tech HID lights.
Message 4
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Subject: | Re: Speaking of Wig Wags... |
Tom
I'd like to have the flasher unit if it's still available... and I'll "trade" for
my 40 Littlefuse modular, ATO, fuse holders w/connectors that any other Matronics
contributor would like to have.
See:
http://www.littelfuse.com/data/en/Data_Sheets/155_153PCMount.pdf
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=318831#318831
Message 5
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Subject: | Re: Squeaky Wheeling |
Thanks, Bob.
J
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=318846#318846
Message 6
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Subject: | Jabiru 3300 OV protection |
Thanks Bob
Yes I have a voltmeter and have not noticed a problem but I will fit the
S704-1 for protection. The EFI system has worked fine for 3 years but now it
seems that noise is boosting the MAP signal which no longer follows the fuel
maps and it runs over rich. I will also test with alternator disconnected.
I will report back when solved and hope it may help someone else.
Thanks
Peter
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: 11 November 2010 00:26
Subject: AeroElectric-List: Jabiru 3300 OV protection
Hi Bob,
Do you have a protection circuit to protect against regulator-rectifier
failure for the PM alternator as used on the Jabiru 3300? I have installed
the OV crowbar circuit but does this stop voltage excess say 15-20V? I am
getting interference affecting the ECU as I have fuel injected the engine. I
will test the Vreg output in a couple of days but need to be sure I have
this protection if possible anyway.
Thanks
Peter
Quickie Q-200Jabiru
It would the be the same technique illustrated
in . . .
http://www.aeroelectric.com/PPS/Adobe_Architecture_Pdfs/Z16M.pdf
OV protection systems for 14v airplanes are designed
to shut the alternator down and latch it off if the
bus voltage exceeds 16.0 to 16.5 volts.
Have you had a voltmeter on the system. This is the
FIRST thing you do for iniital operations of any new
system . . . see if the alternator is even working
and deduce the voltage regulator setting.
Bob . . .
Message 7
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Subject: | Jabiru 3300 OV protection |
At 03:23 PM 11/10/2010, you wrote:
>Thanks Bob
>Yes I have a voltmeter and have not noticed a problem but I will fit
>the S704-1 for protection. The EFI system has worked fine for 3
>years but now it seems that noise is boosting the MAP signal which
>no longer follows the fuel maps and it runs over rich. I will also
>test with alternator disconnected.
>I will report back when solved and hope it may help someone else.
Hmmmm . . . engine sensors tend to offer DC signals that are
easy to filter. I suspect that alternator 'noise' is not
root cause for the noted errors. But I could be wrong. Let
us know what you find and holler if we can help.
Bob . . .
Message 8
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Subject: | Jabiru 3300 OV protection |
Thanks again Bob,
It turns out I do have the PM alternator disconnect relay S704-1 I had
forgotten. I suppose if the rectifier is shot it would pass up to 16VAC. The
supply voltage from ECU to MAP sensor is 5VDC which I confirmed static. Not
sure if the ECU signal input is filtered but it should be as you say.
I will report back when tried with alternator disconnected.
Peter
_____
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: 11 November 2010 13:09
Subject: RE: AeroElectric-List: Jabiru 3300 OV protection
At 03:23 PM 11/10/2010, you wrote:
Thanks Bob
Yes I have a voltmeter and have not noticed a problem but I will fit the
S704-1 for protection. The EFI system has worked fine for 3 years but now it
seems that noise is boosting the MAP signal which no longer follows the fuel
maps and it runs over rich. I will also test with alternator disconnected.
I will report back when solved and hope it may help someone else.
Hmmmm . . . engine sensors tend to offer DC signals that are
easy to filter. I suspect that alternator 'noise' is not
root cause for the noted errors. But I could be wrong. Let
us know what you find and holler if we can help.
Bob . . .
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