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 Posted: Sun Jun 17, 2012 4:20 pm Post subject: Pulsar-List Digest: 6 Msgs - 06/16/12 |
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I would say it is the regulator/rectifier and you need the new capacitor if you don't have it
I have had this exact same problem and had to replace the regulator/rectifier 3 times in 15 years....and Rotax admits it is a problem and that is you need to have the capacitor in place.
On Sun, Jun 17, 2012 at 2:57 AM, Pulsar-List Digest Server <pulsar-list(at)matronics.com (pulsar-list(at)matronics.com)> wrote:
[quote] *
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Pulsar-List Digest Archive
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Total Messages Posted Sat 06/16/12: 6
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Today's Message Index:
----------------------
1. 12:05 PM - Voltage problem (sonja.englert(at)juno.com (sonja.englert(at)juno.com))
2. 12:44 PM - Re: Voltage problem (pulsar331(at)sbcglobal.net (pulsar331(at)sbcglobal.net))
3. 04:19 PM - Oh No! (Dennis Adams)
4. 06:21 PM - Re: Voltage problem (Myron Truex)
5. 06:44 PM - Re: Voltage problem (Ron Koval)
6. 09:56 PM - Re: Voltage problem (Keith Palmer)
________________________________ Message 1 _____________________________________
Time: 12:05:11 PM PST US
From: "sonja.englert(at)juno.com (sonja.englert(at)juno.com)" <sonja.englert(at)juno.com (sonja.englert(at)juno.com)>
Subject: Voltage problem
Hello Group,
I have a problem with the system voltage since I replaced the battery recently
in my Pulsar. After startup with the new battery, the voltage regulator did not
seem to be working. Voltage increased to 15V-16V on the ground at 2500 engine
rpm. If I increase the rpm the voltage can go as high as 19V. I have to keep
the rpm low (2000) to keep the voltage <15V. After about 6-8 minutes, all of
a sudden the voltage regulator seems to kick in and the voltage goes back to normal
below 14V and stays there.
I put the old battery back and the voltage was normal from the start.
The old battery is 12V, 33Ah, the new one 12V, 22Ah of the same brand. Engine Rotax
912 with Ducati voltage regulator.
The problem did not happen with the new battery if the engine was warm. I wonder
if it has something to do with temperature.
Has anyone had this problem or has an idea what is going on?
Sonja
____________________________________________________________
53 Year Old Mom Looks 33
The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
http://thirdpartyoffers.juno.com/TGL3131/4fdc8f2ad26a7673eaest01duc
________________________________ Message 2 _____________________________________
Time: 12:44:09 PM PST US
Subject: Re: Voltage problem
From: pulsar331(at)sbcglobal.net (pulsar331(at)sbcglobal.net)
I would be replacing that voltage regulator.
On Jun 16, 2012, at 1:49 PM, "sonja.englert(at)juno.com (sonja.englert(at)juno.com)" <sonja.englert(at)juno.com (sonja.englert(at)juno.com)>
wrote:
>
> Hello Group,
> I have a problem with the system voltage since I replaced the battery recently
in my Pulsar. After startup with the new battery, the voltage regulator did
not seem to be working. Voltage increased to 15V-16V on the ground at 2500 engine
rpm. If I increase the rpm the voltage can go as high as 19V. I have to keep
the rpm low (2000) to keep the voltage <15V. After about 6-8 minutes, all of
a sudden the voltage regulator seems to kick in and the voltage goes back to
normal below 14V and stays there.
> I put the old battery back and the voltage was normal from the start.
> The old battery is 12V, 33Ah, the new one 12V, 22Ah of the same brand. Engine
Rotax 912 with Ducati voltage regulator.
> The problem did not happen with the new battery if the engine was warm. I wonder
if it has something to do with temperature.
> Has anyone had this problem or has an idea what is going on?
>
> Sonja
>
>
> ____________________________________________________________
> 53 Year Old Mom Looks 33
> The Stunning Results of Her Wrinkle Trick Has Botox Doctors Worried
> http://thirdpartyoffers.juno.com/TGL3131/4fdc8f2ad26a7673eaest01duc
>
>
>
>
>
________________________________ Message 3 _____________________________________
Time: 04:19:26 PM PST US
From: Dennis Adams <ghf4986(at)gmail.com (ghf4986(at)gmail.com)>
Subject: Oh No!
All,
I had an 'oh no'! I flew the Pulsar to Las Vegas, New Mexico for a
family reunion.
I went out to the field today to find wind damage. The tail tie down
rope was cut or broken, the left wing eye bolt in the wing was bent at
45 degrees and the right one was bent , but not as bad. Some of the
gust locks had worked loose and the flaps were over extended bending
the push rod against the wood on the back spar. The attach point on
each flap is dented and the bent rod has dimpled the wing as the flap
worked in the wind in the up flap position.
I guess it could have been worse if the plane had flipped over.
I pulled all the inspection plates and the only damage that I can find
are the flaps, and the eye bolts. All the hinges are okay.
I am planning to head home tomorrow and just not use the flaps. Sure
hated to see it happen.
Does anyone have or know where I can get a set of flaps for an XP.
Dennis
N375CM
Sent from an IPad
________________________________ Message 4 _____________________________________
Time: 06:21:40 PM PST US
From: "Myron Truex" <MyronTruex(at)comcast.net (MyronTruex(at)comcast.net)>
Subject: RE: Voltage problem
Changing a battery will not by itself cause an issue. Bumping something that
is not making a good contact will. Or the old battery was masking a problem
by putting enough load on the stator output to hold it down. The first thing
I would do is put a hand held voltmeter across the battery terminals with
the engine running. If it shows the voltage high there the regulator is not
doing its job. I haven't looked at the schematic in many years but remember
we used a capacitor that was recommended. The capacitor might have provided
some quicker filtering than the battery but never made much sense to an ET.
If you see the voltage high with the hand held you can turn on your strobes
and whatever else you have as a temporary remedy. I am making an assumption
you do not have the actual alternator and are using the 17 amp stator
charger system.
Myron
I miss my magic carpet ride. 30TX
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