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esalehto(at)yahoo.com
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 Posted: Thu Jan 03, 2013 7:40 am Post subject: Rotax 912 charging question |
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Hi,
I was heading today out to flying. During the run-up check I found that charging indicated low 11.7 V. I checked TX and there was extra noise what doesn't belong to normal TX. When I took all the load away then charging indicated little over 13 V. Just adding little load it went around 11.7 V.
Any ideas what is going on? Is it regulator, alternator, battery or what?
Esa
Pulsar XP
Rotax 912
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briana(at)xtra.co.nz
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| Posted: Thu Jan 03, 2013 9:59 am Post subject: Rotax 912 charging question |
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Esa,
It is most unlikely to be the battery, but you can check that independently. Should be about 12.6v when charged. Unlikely to be the alternator. Quite a few people have had problems with the regulator. I've had a similar low voltage problem on one occasion and it turned out to be a loose connection in the regulator connector, so a first check might be to have a good look at the wiring for loose connections.
Brian
On 4/01/2013, at 4:39 AM, Esa Lehto <esalehto(at)yahoo.com (esalehto(at)yahoo.com)> wrote:
[quote]Hi,
I was heading today out to flying. During the run-up check I found that charging indicated low 11.7 V. I checked TX and there was extra noise what doesn't belong to normal TX. When I took all the load away then charging indicated little over 13 V. Just adding little load it went around 11.7 V.
Any ideas what is going on? Is it regulator, alternator, battery or what?
Esa
Pulsar XP
Rotax 912
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scott(at)s-f-x.com
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| Posted: Thu Jan 03, 2013 10:33 am Post subject: Rotax 912 charging question |
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Hi
If you're checking the regulator there are a few other things detailed here (Dec 18th post):
http://pointsforpilots.blogspot.co.uk/
Scott MacIntyre
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