Today's Message Index:
----------------------
0. 12:37 AM - Please Support The Lists... (Matt Dralle)
1. 11:13 AM - canopy leaks (Matt Tucciarone)
2. 11:34 AM - Re: canopy leaks (Linn Walters)
3. 12:09 PM - Re: canopy leaks (Craig Gallenbach)
4. 12:13 PM - Re: canopy leaks (Larry Bowen)
5. 12:46 PM - Eating Alternators... (Ken Cantrell)
6. 01:34 PM - Re: canopy leaks (Matt Tucciarone)
7. 01:45 PM - Re: Eating Alternators... (Carl Froehlich)
8. 01:53 PM - Re: Eating Alternators... (Mike Robertson)
9. 02:07 PM - Re: Eating Alternators... (Ken Cantrell)
10. 02:32 PM - Re: Eating Alternators... (Charlie England)
11. 06:56 PM - Re: Eating Alternators... (Mike Kellems)
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Subject: | Please Support The Lists... |
Dear Listers,
Just a reminder that November is the Matronics Email List Fund Raiser month. There
are some very nice incentive gifts to choose from as well! Your Contributions
alone keep these services up and running.
Please make your Contribution today at:
http://www.matronics.com/contribution
or by dropping a personal check in the mail to:
Matt Dralle / Matronics
581 Jeannie Way
Livermore CA 94550
Thank you!
Matt Dralle
Matronics Email List Administrator
Message 1
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This my be a stupid question but here goes. I was thinking about taking my
newly bought RV-8 on a trip where it will have to be parked on a ramp for a
few days. I did not get a canopy cover with the plane and was wondering if
the -8's take in water when it rains? Also does anyone use the Light travel
canopy cover that Vans sells and does it keep out the rain?
Thanks,
Matt
Message 2
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Subject: | Re: canopy leaks |
On 11/17/2011 2:04 PM, Matt Tucciarone wrote:
> <m.tucciarone@hotmail.com>
>
> This my be a stupid question but here goes. I was thinking about
> taking my newly bought RV-8 on a trip where it will have to be parked
> on a ramp for a few days. I did not get a canopy cover with the plane
> and was wondering if the -8's take in water when it rains?
I have seen a -8 ... ;-) but have no clue if they leak. I may still
help though.
> Also does anyone use the Light travel canopy cover that Vans sells and
> does it keep out the rain?
Most of the light weight covers shed the rain by containing it in the
cover so it's absorbed in the cloth and drains instead of impacting
where the canopy meets the windshield. The heavier covers actually
repel the water so the underside stays dry.
I'd recommend a good cover if you're going to leave the airplane out
.... google 'canopy covers'.
However, you can use the lightweight cover and just use the blue
painters tape to seal underneath the cover. BTDT.
Linn
>
>
> Thanks,
> Matt
>
>
Message 3
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Subject: | Re: canopy leaks |
I used the Vans lightweight cover while parked during a frog strangler on my way
to OSH in 2010. It worked well. I was concerned about leaks around the front
baggage door, but that was not an issue.
Craig Gallenbach
RV8A N184CG 215hrs
On Nov 17, 2011, at 2:04 PM, "Matt Tucciarone" <m.tucciarone@hotmail.com> wrote:
>
> This my be a stupid question but here goes. I was thinking about taking my newly
bought RV-8 on a trip where it will have to be parked on a ramp for a few
days. I did not get a canopy cover with the plane and was wondering if the -8's
take in water when it rains? Also does anyone use the Light travel canopy cover
that Vans sells and does it keep out the rain?
>
> Thanks,
> Matt
>
>
>
>
Message 4
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Subject: | Re: canopy leaks |
I used the light cover on my 8 and thought is was fine. I'd get it again.
I don't think I had any canopy leaks. I did get some water through the
NACA vent during a storm though. Plug it with a closed cell sponge or
something.
I also put some of those plastic cling shades over each fuel cap to keep
the rain out when parked outdoors. The same ones that can be slapped on
the canopy for some sun relief.
Safe travels.
--
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
On Thu, Nov 17, 2011 at 2:30 PM, Linn Walters <pitts_pilot@bellsouth.net>wrote:
>
>
> On 11/17/2011 2:04 PM, Matt Tucciarone wrote:
>
>> m.tucciarone@hotmail.com>
>>
>> This my be a stupid question but here goes. I was thinking about taking
>> my newly bought RV-8 on a trip where it will have to be parked on a ramp
>> for a few days. I did not get a canopy cover with the plane and was
>> wondering if the -8's take in water when it rains?
>>
> I have seen a -8 ... ;-) but have no clue if they leak. I may still
> help though.
>
> Also does anyone use the Light travel canopy cover that Vans sells and
>> does it keep out the rain?
>>
> Most of the light weight covers shed the rain by containing it in the
> cover so it's absorbed in the cloth and drains instead of impacting where
> the canopy meets the windshield. The heavier covers actually repel the
> water so the underside stays dry.
>
> I'd recommend a good cover if you're going to leave the airplane out ....
> google 'canopy covers'.
> However, you can use the lightweight cover and just use the blue painters
> tape to seal underneath the cover. BTDT.
> Linn
>
>
>>
>> Thanks,
>> Matt
>>
>>
>>
>>
>>
>>
>
>
Message 5
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Subject: | Eating Alternators... |
Listers,
I have put 1175 hours on my RV6 over the last 10 years and I'm currently
having serious alternator problems.
I have Vans "steam" engine gauges including an analog ammeter and voltage
meter. While cruising at altitude about a month ago I noticed my ammeter
start to "quiver" a lot. After dancing back and forth from neg to positive,
it finally went solid to the negative side. I figured I lost my alternator
but wasn't too concerned. I turned off my strobes to save battery life and
headed home. My battery had plenty of life for my radio and transponder.
I removed my alternator, had it checked (it was dead) and bought a new one.
After about 5 hours on the replacement, the same scenario occurred. I talked
to others more knowledgeable than me (just about everyone) and elected to
install another one just in case it was a bad alternator. You guessed it;
same thing happened. BTW, before changing out the first alternator, I
checked all electrical connections to see if I could find anything loose and
could not. The only thing I found was the nut attaching the heavy gauge line
from the positive battery to the master relay was snug but not tight. There
was also a little residue on the master relay that looked like it may have
'arced' at some time. I sinched down the nut and hoped that was my problem.
I am now on my 3rd alternator in a month. This time, I bought a "Plane
Power" one from Vans. Yesterday, my ammeter started the boogie dance again.
I shut off the alternator by turning off my field switch on my panel for a
while and periodically turned it back on to charge the battery. But after it
was on for a while, the ammeter started to quiver and dance as it has done
before just before it failed. In all three cases, when the alternator is on,
the battery is showing 14.5 volts. Also, all 3 alternators have internal
voltage regulators.
Any and all suggestions / advice is much appreciated.
Ken Cantrell
Lodi, CA
209-747-2903
Message 6
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Subject: | Re: canopy leaks |
Thanks everyone for your comments. I think I will buy the light cover
from Vans.
From: Larry Bowen
Sent: Thursday, November 17, 2011 3:10 PM
Subject: Re: RV-List: canopy leaks
I used the light cover on my 8 and thought is was fine. I'd get it
again. I don't think I had any canopy leaks. I did get some water
through the NACA vent during a storm though. Plug it with a closed cell
sponge or something.
I also put some of those plastic cling shades over each fuel cap to keep
the rain out when parked outdoors. The same ones that can be slapped on
the canopy for some sun relief.
Safe travels.
--
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
On Thu, Nov 17, 2011 at 2:30 PM, Linn Walters
<pitts_pilot@bellsouth.net> wrote:
<pitts_pilot@bellsouth.net>
On 11/17/2011 2:04 PM, Matt Tucciarone wrote:
<m.tucciarone@hotmail.com>
This my be a stupid question but here goes. I was thinking about
taking my newly bought RV-8 on a trip where it will have to be parked on
a ramp for a few days. I did not get a canopy cover with the plane and
was wondering if the -8's take in water when it rains?
I have seen a -8 ... ;-) but have no clue if they leak. I may
still help though.
Also does anyone use the Light travel canopy cover that Vans sells
and does it keep out the rain?
Most of the light weight covers shed the rain by containing it in the
cover so it's absorbed in the cloth and drains instead of impacting
where the canopy meets the windshield. The heavier covers actually
repel the water so the underside stays dry.
I'd recommend a good cover if you're going to leave the airplane out
.... google 'canopy covers'.
However, you can use the lightweight cover and just use the blue
painters tape to seal underneath the cover. BTDT.
Linn
Thanks,
Matt
om" target="_blank">www.aeroelectric.com
ooks.com" target="_blank">www.buildersbooks.com
et="_blank">www.homebuilthelp.com
="_blank">http://www.matronics.com/contribution
le, List Admin.
get="_blank">http://www.matronics.com/Navigator?RV-List
http://forums.matronics.com
le, List Admin.
="_blank">http://www.matronics.com/contribution
Message 7
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Subject: | Re: Eating Alternators... |
I suggest you first look at the alternator ground path. Instead of relying o
n mounting hardware, run a ground cable from the alternator to the engine gr
ound point. I ground the engine at the starter using the same gauge wire as
the positive lead going to the starter. I do a short jumper from this poin
t to ground the alternator.
Remember, ever amp of juice running to the starter or from the alternator ha
s the same current in the ground path.
If you still have a problem, try swapping out the source switch/breaker (wha
t I assume you mean by field switch). If you have a corroded or other high r
esistance type you may be causing the internal voltage regulator to fail ove
r time. I'd place this in the long shot category but if you are on the thir
d alternator and the ground is good, then it may be worth your time, especia
lly if the alternators failed because of the internal voltage regulator.
The real stretch would be if you did any thing to the comm or xpdr antennas o
r antenna leads, or if you are having new problems with either. If somehow y
ou are inducing rf current
Into the alternator I could, maybe, kind of, see this causing the repeated f
ailure.
Good luck,
Carl
On Nov 17, 2011, at 3:43 PM, "Ken Cantrell" <kcflyrv@comcast.net> wrote:
> Listers,
>
> I have put 1175 hours on my RV6 over the last 10 years and I=99m cur
rently having serious alternator problems.
>
> I have Vans =9Csteam=9D engine gauges including an analog amme
ter and voltage meter. While cruising at altitude about a month ago I notice
d my ammeter start to =9Cquiver=9D a lot. After dancing back and
forth from neg to positive, it finally went solid to the negative side. I f
igured I lost my alternator but wasn=99t too concerned. I turned off m
y strobes to save battery life and headed home. My battery had plenty of lif
e for my radio and transponder.
>
> I removed my alternator, had it checked (it was dead) and bought a new one
.
>
> After about 5 hours on the replacement, the same scenario occurred. I talk
ed to others more knowledgeable than me (just about everyone) and elected to
install another one just in case it was a bad alternator. You guessed it; s
ame thing happened. BTW, before changing out the first alternator, I checked
all electrical connections to see if I could find anything loose and could n
ot. The only thing I found was the nut attaching the heavy gauge line from t
he positive battery to the master relay was snug but not tight. There was al
so a little residue on the master relay that looked like it may have =98
arced=99 at some time. I sinched down the nut and hoped that was my pr
oblem.
>
> I am now on my 3rd alternator in a month. This time, I bought a =9CP
lane Power=9D one from Vans. Yesterday, my ammeter started the boogie d
ance again. I shut off the alternator by turning off my field switch on my p
anel for a while and periodically turned it back on to charge the battery. B
ut after it was on for a while, the ammeter started to quiver and dance as i
t has done before just before it failed. In all three cases, when the altern
ator is on, the battery is showing 14.5 volts. Also, all 3 alternators have i
nternal voltage regulators.
>
>
>
> Any and all suggestions / advice is much appreciated.
>
>
>
> Ken Cantrell
>
> Lodi, CA
>
> 209-747-2903
>
>
>
>
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
Message 8
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Subject: | Eating Alternators... |
Ken=2C
Have you checked the ground wires=2C especially the one from the engine cas
e to the firewall? Sometimes loose and/or dirty grounds will cause problem
s.
Mike Robertson
From: kcflyrv@comcast.net
Subject: RV-List: Eating Alternators...
Listers=2C
I have put 1175 hours on my RV6 over the last 10 years and I=92m currently
having serious alternator problems.
I have Vans =93steam=94 engine gauges including an analog ammeter and volta
ge meter. While cruising at altitude about a month ago I noticed my ammeter
start to =93quiver=94 a lot. After dancing back and forth from neg to posi
tive=2C it finally went solid to the negative side. I figured I lost my alt
ernator but wasn=92t too concerned. I turned off my strobes to save battery
life and headed home. My battery had plenty of life for my radio and trans
ponder.
I removed my alternator=2C had it checked (it was dead) and bought a new on
e.
After about 5 hours on the replacement=2C the same scenario occurred. I tal
ked to others more knowledgeable than me (just about everyone) and elected
to install another one just in case it was a bad alternator. You guessed it
=3B same thing happened. BTW=2C before changing out the first alternator=2C
I checked all electrical connections to see if I could find anything loose
and could not. The only thing I found was the nut attaching the heavy gaug
e line from the positive battery to the master relay was snug but not tight
. There was also a little residue on the master relay that looked like it m
ay have =91arced=92 at some time. I sinched down the nut and hoped that was
my problem.
I am now on my 3rd alternator in a month. This time=2C I bought a =93Plane
Power=94 one from Vans. Yesterday=2C my ammeter started the boogie dance ag
ain. I shut off the alternator by turning off my field switch on my panel f
or a while and periodically turned it back on to charge the battery. But af
ter it was on for a while=2C the ammeter started to quiver and dance as it
has done before just before it failed. In all three cases=2C when the alter
nator is on=2C the battery is showing 14.5 volts. Also=2C all 3 alternators
have internal voltage regulators.
Any and all suggestions / advice is much appreciated.
Ken Cantrell
Lodi=2C CA
209-747-2903
Message 9
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Subject: | Eating Alternators... |
Thanks Carl & Mike.
Good stuff to check out.
I'll let you know results.
ken
From: owner-rv-list-server@matronics.com
[mailto:owner-rv-list-server@matronics.com] On Behalf Of Mike Robertson
Sent: Thursday, November 17, 2011 1:50 PM
Subject: RE: RV-List: Eating Alternators...
Ken,
Have you checked the ground wires, especially the one from the engine case
to the firewall? Sometimes loose and/or dirty grounds will cause problems.
Mike Robertson
_____
From: kcflyrv@comcast.net
Subject: RV-List: Eating Alternators...
Listers,
I have put 1175 hours on my RV6 over the last 10 years and I'm currently
having serious alternator problems.
I have Vans "steam" engine gauges including an analog ammeter and voltage
meter. While cruising at altitude about a month ago I noticed my ammeter
start to "quiver" a lot. After dancing back and forth from neg to positive,
it finally went solid to the negative side. I figured I lost my alternator
but wasn't too concerned. I turned off my strobes to save battery life and
headed home. My battery had plenty of life for my radio and transponder.
I removed my alternator, had it checked (it was dead) and bought a new one.
After about 5 hours on the replacement, the same scenario occurred. I talked
to others more knowledgeable than me (just about everyone) and elected to
install another one just in case it was a bad alternator. You guessed it;
same thing happened. BTW, before changing out the first alternator, I
checked all electrical connections to see if I could find anything loose and
could not. The only thing I found was the nut attaching the heavy gauge line
from the positive battery to the master relay was snug but not tight. There
was also a little residue on the master relay that looked like it may have
'arced' at some time. I sinched down the nut and hoped that was my problem.
I am now on my 3rd alternator in a month. This time, I bought a "Plane
Power" one from Vans. Yesterday, my ammeter started the boogie dance again.
I shut off the alternator by turning off my field switch on my panel for a
while and periodically turned it back on to charge the battery. But after it
was on for a while, the ammeter started to quiver and dance as it has done
before just before it failed. In all three cases, when the alternator is on,
the battery is showing 14.5 volts. Also, all 3 alternators have internal
voltage regulators.
Any and all suggestions / advice is much appreciated.
Ken Cantrell
Lodi, CA
209-747-2903
_blank>www.aeroelectric.com
/" target=_blank>www.buildersbooks.com
=_blank>www.homebuilthelp.com
=_blank>http://www.matronics.com/contribution
get=_blank>http://www.matronics.com/Navigator?RV-List
ttp://forums.matronics.com
=_blank>http://www.matronics.com/contribution
Message 10
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Subject: | Re: Eating Alternators... |
On 11/17/2011 02:43 PM, Ken Cantrell wrote:
>
> Listers,
>
> I have put 1175 hours on my RV6 over the last 10 years and I'm
> currently having serious alternator problems.
>
> I have Vans "steam" engine gauges including an analog ammeter and
> voltage meter. While cruising at altitude about a month ago I noticed
> my ammeter start to "quiver" a lot. After dancing back and forth from
> neg to positive, it finally went solid to the negative side. I figured
> I lost my alternator but wasn't too concerned. I turned off my strobes
> to save battery life and headed home. My battery had plenty of life
> for my radio and transponder.
>
> I removed my alternator, had it checked (it was dead) and bought a new
> one.
>
> After about 5 hours on the replacement, the same scenario occurred. I
> talked to others more knowledgeable than me (just about everyone) and
> elected to install another one just in case it was a bad alternator.
> You guessed it; same thing happened. BTW, before changing out the
> first alternator, I checked all electrical connections to see if I
> could find anything loose and could not. The only thing I found was
> the nut attaching the heavy gauge line from the positive battery to
> the master relay was snug but not tight. There was also a little
> residue on the master relay that looked like it may have 'arced' at
> some time. I sinched down the nut and hoped that was my problem.
>
> I am now on my 3^rd alternator in a month. This time, I bought a
> "Plane Power" one from Vans. Yesterday, my ammeter started the boogie
> dance again. I shut off the alternator by turning off my field switch
> on my panel for a while and periodically turned it back on to charge
> the battery. But after it was on for a while, the ammeter started to
> quiver and dance as it has done before just before it failed. In all
> three cases, when the alternator is on, the battery is showing 14.5
> volts. Also, all 3 alternators have internal voltage regulators.
>
> Any and all suggestions / advice is much appreciated.
>
> Ken Cantrell
>
> Lodi, CA
>
> 209-747-2903
>
The easiest way to kill a 'one wire' alternator is to have the load drop
off line suddenly. That sounds like what you're describing. If the load
drops off, the regulator in the alternator cannot reduce the field
voltage quickly enough to prevent a large spike in output voltage, which
exceeds the ratings of the components in the regulator & it dies. If
there's a loose connection or flaky contact anywhere in the circuit, it
can look like an open circuit to the alternator.
Any loss of continuity between the alternator & the load (battery and/or
that electrical stuff that's operating) can cause this 'load dump'. This
loss can be on the positive path, or the ground path.
Check all connections between the alternator's output and the battery
(screw terminals, contacters, circuit breakers, battery posts, etc).
Also check the ground return path. (This one is easy to overlook.) Don't
use the motor mount for your ground return from the motor to the
airframe; make sure you have a ground strap from the motor itself (or
better yet, the alternator case) to the airframe ground, and be sure
that the airframe has a good connection to the battery negative.
FWIW,
Charlie
Message 11
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Subject: | Re: Eating Alternators... |
Ken, I had almost the same thing happen on my RV3 ... I decided to rewire
=C2- after the 2nd alternator (internal regulators) and in the process fo
und the heavy wire from the alternator to the ammeter/ breaker had a "hot"
spot in it that was brittle and barely joined by a few strands. The only th
ing holding it together was the "skin" .=C2- It tested good continuity bu
t was in fact not letting the full amount of electricity through and would
somehow burn the alternator up in short order. Replacing the wire fixed the
problem and cured the bounce/jitter in the gauge.
Might not be your issue but, wouldn't hurt to check.
...Mike
DNA....
--- On Thu, 11/17/11, Ken Cantrell <kcflyrv@comcast.net> wrote:
From: Ken Cantrell <kcflyrv@comcast.net>
Subject: RV-List: Eating Alternators...
Listers,I have put 1175 hours on my RV6 over the last 10 years and I
=99m currently having serious alternator problems. I have Vans =9Cste
am=9D engine gauges including an analog ammeter and voltage meter. Wh
ile cruising at altitude about a month ago I noticed my ammeter start to
=9Cquiver=9D a lot. After dancing back and forth from neg to po
sitive, it finally went solid to the negative side. I figured I lost my alt
ernator but wasn=99t too concerned. I turned off my strobes to save b
attery life and headed home. My battery had plenty of life for my radio and
transponder. I removed my alternator, had it checked (it was dead) and bou
ght a new one. After about 5 hours on the replacement, the same scenario oc
curred. I talked to others more knowledgeable than me (just about everyone)
and elected to install another one just in case it was a bad alternator. Y
ou guessed it; same thing happened. BTW, before changing out the first alte
rnator, I checked all electrical
connections to see if I could find anything loose and could not. The only
thing I found was the nut attaching the heavy gauge line from the positive
battery to the master relay was snug but not tight. There was also a little
residue on the master relay that looked like it may have =98arced
=99 at some time. I sinched down the nut and hoped that was my problem.
I am now on my 3rd alternator in a month. This time, I bought a =9CPl
ane Power=9D one from Vans. Yesterday, my ammeter started the boogie
dance again. I shut off the alternator by turning off my field switch on my
panel for a while and periodically turned it back on to charge the battery
. But after it was on for a while, the ammeter started to quiver and dance
as it has done before just before it failed. In all three cases, when the a
lternator is on, the battery is showing 14.5 volts. Also, all 3 alternators
have internal voltage regulators. =C2-Any and all suggestions / advice i
s much appreciated.
==================0A=0A
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