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dlm34077(at)q.com
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 Posted: Mon Jan 17, 2011 3:13 pm Post subject: plane power alternator |
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Mine stopped alternating on Saturday. After checking wiring and breakers to the alternator and checking the armature for magnetism. I checked the connector on the unit and found that at a low ohm setting, all pins showed open for the field. After a friend changed the setting for a larger resistance scale, the field pin read 500+ ohms so it was sent to the manufacturer. Before sending we did change the only part (regulator,diodes and brushes). That did not solve the problem. Another builder suggested a blast tube of cooling air and we constructed. After talking with Plane power that tube is not required. It is a Van's carryover recommendation from about 10 years ago. The new alternators have dual cooling fans and do not require blast tube cooling air. Will advise when they determine something. Part time is 375 hours between 4/2008 and 1/2011.
[quote][b]
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dave.saylor.aircrafters(a
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| Posted: Mon Jan 17, 2011 8:36 pm Post subject: plane power alternator |
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Our first one was purchased in 2007 and worked fine for about the same
time. It started giving a false low-voltage warning, so we sent it in
and it was replaced. It took a few phone calls but I don't think
there was any charge.
The one that failed had kind of an added-on looking box on the back.
The newer ones are completely internally contained and look a lot
better than the originals.
Dave Saylor
AirCrafters
140 Aviation Way
Watsonville, CA 95076
831-722-9141 Shop
831-750-0284 Cell
On Mon, Jan 17, 2011 at 3:11 PM, DLM <dlm34077(at)q.com> wrote:
| Quote: | Mine stopped alternating on Saturday. After checking wiring and breakers to
the alternator and checking the armature for magnetism. I checked the
connector on the unit and found that at a low ohm setting, all pins showed
open for the field. After a friend changed the setting for a larger
resistance scale, the field pin read 500+ ohms so it was sent to the
manufacturer. Before sending we did change the only part (regulator,diodes
and brushes). That did not solve the problem. Another builder suggested a
blast tube of cooling air and we constructed. After talking with Plane power
that tube is not required. It is a Van's carryover recommendation from about
10 years ago. The new alternators have dual cooling fans and do not require
blast tube cooling air. Will advise when they determine something. Part time
is 375 hours between 4/2008 and 1/2011.
|
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glastar(at)gmx.net
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| Posted: Tue Jan 18, 2011 3:27 am Post subject: plane power alternator |
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Hello Dave,
I wonder, I've heard meanwhile a few reports about them quitting after a
few 100 hours. I know they are not yet a long-time in the game and you
hear only when things are going wrong.
Would you still recommend them or should we wait for 3-4 years more
service history?
br Werner
On 18.01.2011 05:32, Dave Saylor wrote:
| Quote: |
Our first one was purchased in 2007 and worked fine for about the same
time. It started giving a false low-voltage warning, so we sent it in
and it was replaced. It took a few phone calls but I don't think
there was any charge.
The one that failed had kind of an added-on looking box on the back.
The newer ones are completely internally contained and look a lot
better than the originals.
Dave Saylor
AirCrafters
140 Aviation Way
Watsonville, CA 95076
831-722-9141 Shop
831-750-0284 Cell
On Mon, Jan 17, 2011 at 3:11 PM, DLM<dlm34077(at)q.com> wrote:
> Mine stopped alternating on Saturday. After checking wiring and breakers to
> the alternator and checking the armature for magnetism. I checked the
> connector on the unit and found that at a low ohm setting, all pins showed
> open for the field. After a friend changed the setting for a larger
> resistance scale, the field pin read 500+ ohms so it was sent to the
> manufacturer. Before sending we did change the only part (regulator,diodes
> and brushes). That did not solve the problem. Another builder suggested a
> blast tube of cooling air and we constructed. After talking with Plane power
> that tube is not required. It is a Van's carryover recommendation from about
> 10 years ago. The new alternators have dual cooling fans and do not require
> blast tube cooling air. Will advise when they determine something. Part time
> is 375 hours between 4/2008 and 1/2011.
>
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dlm34077(at)q.com
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| Posted: Tue Jan 18, 2011 6:28 am Post subject: plane power alternator |
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I will be checking with Vans to determine when I received mine. I bought virtually the entire 10 kit between 2004 - 2005 so I may have gotten one of the earlier ones. Mine was no false low voltage as the voltmeter reading at the buss was always battery voltage with or without the alternator ON. They tried to help me confirm that the problem was actually the alternator before shipping it to them. I went so far as to drive over to my former avionics instructor's shop and he confirmed that their was high resistance on the field pin. It ws 500+ ohms when it should have been 4 ohms. At 12V the field should allow about 3A but with a 500 ohm resistance it would allow about .024A.
---
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dave.saylor.aircrafters(a
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| Posted: Tue Jan 18, 2011 7:55 am Post subject: plane power alternator |
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Yeah, I would recommend them. The one I replaced it with has been on
for several hundred more. We just passed 750 hours. I think we
changed the first one around 300 hours.
I've done a lot of mx on B&C regulators over the years. They usually
get installed in the most inconvenient of places, so not having to
deal with a regulator is a big plus for me.
Dave Saylor
AirCrafters
140 Aviation Way
Watsonville, CA 95076
831-722-9141 Shop
831-750-0284 Cell
On Tue, Jan 18, 2011 at 3:23 AM, Werner Schneider <glastar(at)gmx.net> wrote:
| Quote: |
Hello Dave,
I wonder, I've heard meanwhile a few reports about them quitting after a few
100 hours. I know they are not yet a long-time in the game and you hear only
when things are going wrong.
Would you still recommend them or should we wait for 3-4 years more service
history?
br Werner
On 18.01.2011 05:32, Dave Saylor wrote:
>
>
> Saylor<dave.saylor.aircrafters(at)gmail.com>
>
> Our first one was purchased in 2007 and worked fine for about the same
> time. It started giving a false low-voltage warning, so we sent it in
> and it was replaced. It took a few phone calls but I don't think
> there was any charge.
>
> The one that failed had kind of an added-on looking box on the back.
> The newer ones are completely internally contained and look a lot
> better than the originals.
>
> Dave Saylor
> AirCrafters
> 140 Aviation Way
> Watsonville, CA 95076
> 831-722-9141 Shop
> 831-750-0284 Cell
>
> On Mon, Jan 17, 2011 at 3:11 PM, DLM<dlm34077(at)q.com> wrote:
>>
>> Mine stopped alternating on Saturday. After checking wiring and breakers
>> to
>> the alternator and checking the armature for magnetism. I checked the
>> connector on the unit and found that at a low ohm setting, all pins
>> showed
>> open for the field. After a friend changed the setting for a larger
>> resistance scale, the field pin read 500+ ohms so it was sent to the
>> manufacturer. Before sending we did change the only part
>> (regulator,diodes
>> and brushes). That did not solve the problem. Another builder suggested a
>> blast tube of cooling air and we constructed. After talking with Plane
>> power
>> that tube is not required. It is a Van's carryover recommendation from
>> about
>> 10 years ago. The new alternators have dual cooling fans and do not
>> require
>> blast tube cooling air. Will advise when they determine something. Part
>> time
>> is 375 hours between 4/2008 and 1/2011.
>>
>>
>>
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dlm34077(at)q.com
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| Posted: Tue Jan 18, 2011 8:09 am Post subject: plane power alternator |
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After checking with Vans, I found that the unit received with the finishing kit in 2005 did not have overvoltage protection and was exchanged in June -July 2007 for one with over voltage protection.
[quote] ---
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dlm34077(at)q.com
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| Posted: Fri Jan 21, 2011 9:22 am Post subject: Plane power alternator |
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Received a verbal today that the alternator is being covered under warranty. The problem was alternator wire winding related, and possibly caused due to vibration issues. The brush assembly was not related to the problem. I carry an extra brush assembly in the spare parts box but in this case it did not fix the problem. Also the blast tube recommendation is a Vans suggestion due to the fact that they used to supply converted car alternators that required the extra cooling. According to PP, no extra cooling is required due to two integral fans on their unit. PP received the unit Thursday afternoon and shipped repaired unit Friday morning. In my experience of flying airplanes for 45 years the response was good.
[quote][b]
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dlm34077(at)q.com
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| Posted: Fri Jan 21, 2011 1:23 pm Post subject: Plane power alternator |
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correction they replaced with a new alternator under warranty.
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