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Search preserved mailing-list messages and current email and website contributions. Current posts are searchable before weekly archival. Recovery gaps remain possible. Words are matched together; try fewer terms if needed.

Page 2+: 60 results shown for Field coil.

Source-balanced relevance: matches from both collections are interleaved, with source dates breaking ties. Restoration time is not the original posting date.

  • Re: Coil-itis
    Historical mailing list - Dennis Haynes
    Mon, 17 Aug 2015 01:14:05 -0400
    ...field collapse and create the spark. As part of the scheme the ECU varies the dwell based on engine RPM so that the coil...
  • Re: "yawn" Another (trivial) Jetta conversion Fuel Pump relay question.... ;^)
    Historical mailing list - Mike S
    Sat, 19 Apr 2008 07:10:33 -0400
    ...to reduce the voltage spikes caused when the relay is de-energized, and the stored magnetic field collapses (like happens with an ignition coil).
  • Re: Help! Front Heater Fan (install) fail
    Historical mailing list - Larry Alofs
    Sun, 14 Jul 2013 15:55:00 -0400
    ...A motor that uses permanent magnets for the field will traditionally reverse as expected. If, however the field is provided by coils of wire...
  • Re: Starter Cleanup
    Historical mailing list - Larry Alofs
    Fri, 20 Mar 2009 19:34:46 -0500
    ...When that happens the starter has to be rebuilt and the field coils replaced because that cable starts from those coils. BTDT Protect that...
  • question about terminals on starter/solenoid
    Historical mailing list - Chris Stinson
    Mon, 19 Jun 2000 15:59:44 -0400
    ...27.13) with 3 terminals (in addition to "connection A" which is "for field wirings")... terminal 30 "from battery", terminal 16 "to ignition coil...
  • Re: Coil Fires, 7.5KOhms
    Historical mailing list - David Beierl
    Tue, 17 Oct 2000 00:33:52 -0400
    ...Also as the current drops, the magnetic field in the primary coil collapses and the windings of the secondary, which absorbs some of the...
  • Re: Gap of Sparks
    Historical mailing list - Bill N
    Sat, 15 Feb 2003 11:08:47 -0700
    ...The coil fires when the points OPEN, not when they close, due to the collapse of the magnetic field. The dwell time influences the...
  • Wasserboxer stalling
    Historical mailing list - TinkerMan
    Wed, 27 Oct 2004 00:39:02 -0700
    ...Temp2 sensor, AFM, throttle switch, coil, hall sender etc.) as access for testing these in the field is not so convenient, especially when no...
  • Re: Voltage at alternator blue D+ lead?
    Historical mailing list - David Beierl
    Sat, 14 May 2011 21:23:56 -0400
    ...After all >the D+ wire is supposed to energize the field coil. However my >continuity tester shows open circuit using either regulators, so >there...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - David Kao
    Thu, 26 Jul 2007 12:51:58 -0700
    ...Basic ignition coil > >operation > > > even back to points. Points closed or ECU conducting, coil is charging, > > > magnetic field builds. Points open or ECU opens...
  • Re: Toggle off switch
    Historical mailing list - John Bange
    Thu, 9 Nov 2006 21:00:49 -0800
    ...The small variations on the output side can be amplified by the regulator into bigger swings in the field coils, which can (in theory...
  • Re: Cold Starts
    Historical mailing list - Jack
    Thu, 13 Nov 2003 12:26:03 -0800
    ...THe coil is charged to max. flux > every cycle. When the field collapses, the electronics have to jump the path > of lease resistance, (the...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - Dennis Haynes
    Wed, 25 Jul 2007 11:54:25 -0400
    ...Basic ignition coil operation even back to points. Points closed or ECU conducting, coil is charging, magnetic field builds. Points open or ECU opens...
  • Re: Correct Gap of Sparks
    Historical mailing list - Mike Miller
    Thu, 20 Feb 2003 13:19:57 -0800
    ...It's easily observable on an oscilloscope. > How long it takes the coil to reach a particular voltage is a function > of the inductance...
  • Re: bus depot (My last one ! I swear!!!)
    Historical mailing list - Tobin Copley
    Thu, 18 Jan 2001 16:38:50 -0800
    ...Ohm my god, can't be conduct ourselves better? I'm not trying to be a resistor here, as it's not my field...
  • Re: vanagon single electrode plugs
    Historical mailing list - Mark Seifert
    Sun, 20 Jun 2004 22:13:33 -0700
    ...The spark is provided by the back EMF >from a collapsing field induced into the secondary winding of the coil. >It is a collapsing...
  • Re: bus depot (My last one ! I swear!!!)
    Historical mailing list - John Klun
    Thu, 18 Jan 2001 18:07:59 -0700
    ...Ohm > my god, can't be conduct ourselves better? I'm not trying to be a > resistor here, as it's not my field...
  • Re: charging woes/charging joy
    Historical mailing list - Steve Delanty
    Sat, 1 Mar 2003 22:39:22 -0800
    <snip> >industry is very competitive and an alternator is pretty much just scrap >iron if it needs field coils or an armature since either...
  • Re: Miss at idle?
    Historical mailing list - Steven P Smith
    Sun, 15 May 2016 20:19:06 -0700
    ...When you close the circuit current builds up [more] slowly > because of the energy going into expanding the field. When you open > the circuit...
  • Re: No start/no spark (fixed)
    Historical mailing list - TJ Hemrick
    Sun, 30 Oct 2011 19:18:08 -0400
    ...Is >> there any way to do a field check on the Hall Effect Generator or coil. >> I'll end up bumming a ride from...
  • Re: No start/no spark
    Historical mailing list - Scott Daniel - Turbovans
    Sun, 30 Oct 2011 13:01:18 -0700
    ...Is > there any way to do a field check on the Hall Effect Generator or coil. > I'll end up bumming a ride from...
  • Re: AW: Camping in cold & battery
    Historical mailing list - David Brodbeck
    Tue, 3 Dec 2002 11:13:00 -0500
    ...I think there just isn't enough power to energize the field coil below a certain speed -- until that happens it's working on...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Roy Nicholl
    Sun, 14 Sep 2014 07:09:26 -0300
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. > > Sent from...
  • Re: Arduino and Vanagons
    Historical mailing list - Dennis Haynes
    Sat, 16 Nov 2013 17:13:03 -0500
    ...during which time a field is building up in the coil. Smaller points gap equals larger dweel angle..and more charge time of the...
  • Re: No activity from starter
    Historical mailing list - Mark A Kippert
    Wed, 27 Jan 2010 12:09:07 -0500
    ...the end of that > pesky cable is welded to the field coil. > > have fun, > Larry A. > > On Tue, Jan 26, 2010 at 7:43...
  • Re: Arduino and Vanagons
    Historical mailing list - Scott Daniel
    Sat, 16 Nov 2013 13:43:57 -0800
    ...during which time a field is building up in the coil. Smaller points gap equals larger dweel angle..and more charge time of the...
  • Re: VANAGON digest 1182
    Historical mailing list - Martin Jagersand
    Thu, 28 Nov 1996 22:18:41 -0500
    ...Well suited to large welds, weld > suited to field repairs. A VERY good welder can do thinner > materials. Can actually be done using a...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - Scott Daniel - Shazam
    Wed, 25 Jul 2007 19:51:13 -0700
    ...Basic ignition coil operation even back to points. Points closed or ECU conducting, coil is charging, magnetic field builds. Points open or ECU opens...
  • Re: dwell
    Historical mailing list - Mark Rokus
    Sat, 13 May 2000 23:13:51 -0400
    ...A hall sensor turns on based on the strength of the magnetic field that they see, thus, it is logical to conclude that you...
  • Re: slow wipers
    Historical mailing list - Stan Wilder
    Thu, 4 Nov 2004 15:42:20 -0600
    ...You'll know because of the burning field coils on your wiper motor. Stan Wilder High Performance Ceramic Coatings www.engineceramics.com -----Original Message...
  • Re: rebuilding starter
    Historical mailing list - Larry Alofs
    Sun, 10 Feb 2008 20:51:31 -0600
    ...When that happens, I believe the field coils have to be replaced, which increases the rebuilding cost. We should all protect that cable with...
  • Re: Arduino and Vanagons
    Historical mailing list - JRodgers
    Sat, 16 Nov 2013 19:25:18 -0600
    ...Smaller points > gap equals larger dweel angle..and more charge time of the coil primary > circuit. > At the instant the points open, the field...
  • Re: Difference in these 2 starter numbers? ( non-USA diesel models)
    Historical mailing list - Martin Jagersand
    Wed, 20 Jan 1999 14:54:06 -0500
    ...Starter rebuild Sam writes: > When I rebuilt my starter ('87 gas) I noticed that my field coil > brackets (what the other end of the...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Jon VonOhlsen
    Mon, 15 Sep 2014 12:47:12 -0600
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. >> >> Sent from...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Raymond Markett
    Mon, 15 Sep 2014 11:48:21 -0700
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. >>> >>> Sent from...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Roy Nicholl
    Sun, 14 Sep 2014 07:26:45 -0300
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. >> >> Sent from...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - Dennis Haynes
    Wed, 25 Jul 2007 23:08:15 -0400
    ...Basic ignition coil operation even back to points. Points closed or ECU conducting, coil is charging, magnetic field builds. Points open or ECU opens...
  • article: Alternator Charging Systems (long)
    Historical mailing list - Joel Walker
    Wed, 14 Jun 95 10:30:51 CDT
    ...Terminal | | :| | field . . II--o /----------------o | Ground :| | coil o____II . . field brushes: | | :| | . ...... \_____________ : | |battery voltage :| | .. .. .. | : | |measurement wire :| | //---| |----\\ | : | |-----------| :| |--------// | | \\ | : | .....................|.. :| stator Ground stator | : | : electronic | : : coil ALTERNATOR coil | : | : switch | : :........................................: |--:-o...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Jon VonOhlsen
    Mon, 15 Sep 2014 12:35:09 -0600
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. >> >> Sent from...
  • Re: New Starter time?
    Historical mailing list - Larry Alofs
    Mon, 3 May 2004 15:27:35 -0500
    ...I've had one done for $75 and another for $125 when they had to replace the field coils. Be sure your relay is...
  • Re: Toggle off switch
    Historical mailing list - Jake de Villiers
    Fri, 10 Nov 2006 00:30:06 -0800
    ...The small variations on the output side can be amplified > by the regulator into bigger swings in the field coils, which can (in > theory...
  • Re: Solenoid-to-starter wire replacement?
    Historical mailing list - Dennis Haynes
    Thu, 22 Jun 2006 22:35:48 -0400
    ...Looking at the Bentley, it seems like the wire feeds the field coils of the motor. Can this repair be done? Has anyone done...
  • Re: Miss at idle?
    Historical mailing list - David Beierl
    Sat, 14 May 2016 05:04:07 -0400
    ...450 volts for a few microseconds per firing pulse on the coil negative terminal -- that's why the tach bites you if you touch...
  • Re: Bentley wiring diagram. Questions on how to read.
    Historical mailing list - Mike S
    Sat, 23 Feb 2008 22:52:09 -0500
    ...Terminal Definition ----------------------------------------------------------------------- IGNITION 1 Ignition coil, ignition distributor, low voltage ----------------------------------------------------------------------- (Ignition distributor with two separate electrical circuits) 1a to ignition contact breaker I 1b...
  • Re: Gap of Sparks
    Historical mailing list - Ben McCafferty
    Sat, 15 Feb 2003 11:52:19 -0700
    ...The coil fires when the points OPEN, not when they > close, due to > the collapse of the magnetic field. The dwell time influences the...
  • Re: Relays
    Historical mailing list - David Beierl
    Sat, 4 Apr 2015 16:11:47 -0400
    ...coil it should make no difference physically (barring some fancy device that cares about the polarity of the magnetic field from the coil). Even...
  • Solenoid-to-starter wire replacement?
    Historical mailing list - Matt Sutton
    Thu, 22 Jun 2006 14:59:43 -0400
    ...Looking at the Bentley, it seems like the wire feeds the field coils of the motor. Can this repair be done? Has anyone done...
  • Re: Thanks on the amps/voltage explain..
    Historical mailing list - Dennis Haynes
    Thu, 13 Nov 2008 22:52:47 -0500
    ...Basically alternators or generators work by moving a magnetic field across the windings. In an alternator, the windings that produce the power are the...
  • Re: Can a 90A or 120A alternator be used for welding?
    Historical mailing list - Daniel Stevens
    Wed, 22 Jun 2005 15:09:01 -0400
    ...can I, or rather, what is the harm in using the >Vanagon's electrical system to do emergency field repairs? I am talking >about...
  • Re: No start/no spark
    Historical mailing list - TJ Hemrick
    Sun, 30 Oct 2011 14:34:19 -0400
    ...coil and cleaned them (they looked good). >>> Is >>> there any way to do a field check on the Hall Effect Generator or coil. >>> I...
  • Re: What does terminal 15a do? (LVC)
    Historical mailing list - Alistair Bell
    Fri, 18 Oct 2002 14:58:23 -0700
    ...coil, ignition distributor, high voltage ----------------------------------------------------------------------- (ignition distributor with two separate electrical circuits) 4a from ignition coil I, terminal 4 4b from ignition coil II...
  • Re: Solenoid-to-starter wire replacement=fixed
    Historical mailing list - Matt Sutton
    Fri, 23 Jun 2006 18:50:56 -0400
    ...The field coil connection inside the starter was indeed not desolderable by conventional means; I drilled a 1/8" hole to create a solderable...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - David Kao
    Wed, 25 Jul 2007 21:11:37 -0700
    ...Basic ignition coil operation > even back to points. Points closed or ECU conducting, coil is charging, > magnetic field builds. Points open or ECU opens...
  • Re: No start/no spark
    Historical mailing list - mark drillock
    Sun, 30 Oct 2011 10:49:08 -0700
    ...Is > there any way to do a field check on the Hall Effect Generator or coil. > I'll end up bumming a ride from...
  • Re: dwell
    Historical mailing list - Adam Puzerewski
    Sun, 14 May 2000 05:51:36 -0400
    ...A hall sensor turns on based on the strength of the magnetic field that they see, thus, it is logical to conclude that you...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - David Kao
    Thu, 26 Jul 2007 08:43:56 -0700
    ...Basic ignition coil > >operation > > > even back to points. Points closed or ECU conducting, coil is charging, > > > magnetic field builds. Points open or ECU opens...
  • Re: Is ECU involved in getting power to fuel pump when turning ignition switch on?
    Historical mailing list - Dennis Haynes
    Thu, 26 Jul 2007 07:51:30 -0400
    ...Basic ignition coil >operation > > even back to points. Points closed or ECU conducting, coil is charging, > > magnetic field builds. Points open or ECU opens...
  • Re: ECU: burned parts. PICS (Jetta Engine in Vanagon)
    Historical mailing list - Vanagon
    Sun, 14 Sep 2014 07:15:39 -0700
    ...L usually stands for coil on U. S. schematics, but maybe VW uses B for the B field associated with a coil. >>> >>> Sent from...
  • Re: Solenoid-to-starter wire replacement=fixed
    Historical mailing list - David Bohannan
    Fri, 23 Jun 2006 22:51:01 -0400
    ...The field coil connection inside the starter was > indeed not desolderable by conventional means; I drilled a 1/8" hole to > create a solderable...
  • Re: dwell
    Historical mailing list - Tom and Dana Cates
    Sun, 14 May 2000 12:06:58 -0400
    ...Just a Pertronix, a coil and the stock dist, wires+plugs. ----- Original Message ----- From: "David Beierl" <dbeierl@IBM.NET> To: <vanagon@GERRY.VANAGON.COM...