 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
rdmac(at)swbell.net
Guest
|
 Posted: Sat Oct 29, 2011 10:33 am Post subject: No charge |
 |
|
This question is for all you Rotax 912uls drivers out there. This past year I have been having issues with what I had hoped was a faulty ammeter. But after replacing the ammeter with a volt meter as per the recommendation of my local A&P mechanic. I have discovered that the gage was not the problem. I do indeed have a problem in the charging system. With the volt meter, after engine start, it was showing 14volts or more but by the time I got airborne it was only showing 12 or less and after less that a 30 minute flight I had to land because I was down to less that 11 volts. The system just was not charging. This engine only has a little over 100 hours total time on it so I’m wondering if I could have a bad rectifier. In addition to this problem I am getting a noise in the radio ever time I transmit. Could the two be related or is this a separate problem? Opinions please.
Roger McConnell
Model 7
Rotax 912uls
N619RM
[quote][b]
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
|
|
|
| Back to top |
|
 |
Lyle Persels
Joined: 10 Jan 2006
Posts: 34
Location: Osceola, IA
|
| Posted: Sat Oct 29, 2011 10:50 am Post subject: No charge |
|
|
About a year ago I experienced identical charging behavior with my 912uls, also a low time engine. I corrected it completely by replacing the rectifier/regulator. Got it from SkyStar.
Lyle Persels
Osceola, IA
KF-IV 1200 912ULS
500 hrs (<100 hrs on engine)
On Oct 29, 2011, at 1:30 PM, RogerMcConnell wrote:
| Quote: | This question is for all you Rotax 912uls drivers out there. This past year I have been having issues with what I had hoped was a faulty ammeter. But after replacing the ammeter with a volt meter as per the recommendation of my local A&P mechanic. I have discovered that the gage was not the problem. I do indeed have a problem in the charging system. With the volt meter, after engine start, it was showing 14volts or more but by the time I got airborne it was only showing 12 or less and after less that a 30 minute flight I had to land because I was down to less that 11 volts. The system just was not charging. This engine only has a little over 100 hours total time on it so I’m wondering if I could have a bad rectifier. In addition to this problem I am getting a noise in the radio ever time I transmit. Could the two be related or is this a separate problem? Opinions please.
Roger McConnell
Model 7
Rotax 912uls
N619RM
| Quote: |
style="color: blue; text-decoration: underline; ">http://www.matronics.com/Navigator?Kitfox-List
blue; text-decoration: underline; ">http://forums.matronics.com
style="color: blue; text-decoration: underline; ">http://www.matronics.com/contribution
|
|
[quote][b]
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
|
|
|
| Back to top |
|
|
clint_bazzill(at)hotmail.
Guest
|
| Posted: Sat Oct 29, 2011 12:19 pm Post subject: No charge |
|
|
Hi Roger,
You will find that a lot of 912 regulators go bad. I am on my 3rd one. I do have an alternator now and it is running parallel to the one that comes with the engine. Mine would act just like yours, I believe it is a heat problem. I can now taxi with nav lights, landing light, strobes, transponder, 2 radios, inst lights and system charges with engine at idle
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
|
|
|
| Back to top |
|
|
frank3
Guest
|
| Posted: Sun Oct 30, 2011 6:25 am Post subject: Re: No charge |
|
|
Howdy Roger
Don't know how your electrical system is set up. Two things to check. First, your voltmeter is probably measuring the available system current (current from regulator + battery - load) and not output from your regulator so you need to go through the process of assuring the regulator voltage is adequate. Second, is it possible you have over loaded the system and are drawing from the battery? Add up you amp draw & see if you're within limits of the generator output. Next time you fly and experience the voltage reduction begin turning equipment off and see if the voltage goes back up. If you haven't already, trade out your incandescent bulbs for LED.
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
|
|
|
| Back to top |
|
|
rdmac(at)swbell.net
Guest
|
| Posted: Sun Oct 30, 2011 12:31 pm Post subject: No charge |
|
|
Thanks guys, good info.....I'm ordering a new voltage regular right now.
Roger McConnell
Model 7
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=356321#356321
| | - The Matronics Kitfox-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Kitfox-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
