RV-List Digest Archive

Thu 11/17/11


Total Messages Posted: 12



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)
 
 
 


Message 0


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    Time: 12:37:42 AM PST US
    From: Matt Dralle <dralle@matronics.com>
    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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    Time: 11:13:36 AM PST US
    From: "Matt Tucciarone" <m.tucciarone@hotmail.com>
    Subject: canopy leaks
    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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    Time: 11:34:21 AM PST US
    From: Linn Walters <pitts_pilot@bellsouth.net>
    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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    Time: 12:09:01 PM PST US
    Subject: Re: canopy leaks
    From: Craig Gallenbach <craigtxtx@yahoo.com>
    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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    Time: 12:13:51 PM PST US
    Subject: Re: canopy leaks
    From: Larry Bowen <larry@bowenaero.com>
    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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    Time: 12:46:26 PM PST US
    From: "Ken Cantrell" <kcflyrv@comcast.net>
    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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    Time: 01:34:23 PM PST US
    From: "Matt Tucciarone" <m.tucciarone@hotmail.com>
    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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    Time: 01:45:29 PM PST US
    From: Carl Froehlich <carl.froehlich@verizon.net>
    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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    Time: 01:53:33 PM PST US
    From: Mike Robertson <mrobert569@hotmail.com>
    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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    Time: 02:07:00 PM PST US
    From: "Ken Cantrell" <kcflyrv@comcast.net>
    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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    Time: 02:32:21 PM PST US
    From: Charlie England <ceengland@bellsouth.net>
    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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    Time: 06:56:28 PM PST US
    From: Mike Kellems <kellemsm@yahoo.com>
    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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