

| Subject: | Re: headlamps |
| From: | David McNeely |
| Date: | Thu, 27 Aug 2020 05:21:29 -0700 |
Correct, Jeff. And other accessories work, so more likely light switch than ignition switch. Just haven't gotten into it yet. On Wed, Aug 26, 2020 at 9:37 PM Jeff Palmer <w.jeff.palmer@icloud.com> wrote: > Just to confirm - McNeely this is for you :) - the problem is NOT the > ground, right? Am I reading that correctly? You pulled the lever, lamps > lit up, so not a ground problem, right? > > Thanks again > Jeff > > > On Aug 23, 2020, at 11:13 AM, Dennis Haynes <d23haynes57@HOTMAIL.COM> > wrote: > > > > If the lamps lighted with the high beam lever pulled than the ground has > not failed. The high beam lever direct connects from the battery feed to > the high beam circuit doing a bypass past the X contact on the ignition > switch and the headlight switch. Depending on how things were wired this > could also bypass the headlight relays, and the problem is there. A ground > problem here may also be a reason that changing the bulbs made them work. > > Need a schematic! > > > > Dennis > > > > From: David McNeely <davmcneely40@gmail.com> > > Sent: Sunday, August 23, 2020 12:07 PM > > To: Dennis Haynes <d23haynes57@hotmail.com> > > Cc: vanagon@GERRY.VANAGON.COM > > Subject: Re: headlamps > > > > Dennis and others who replied to my original inquiry, Thanks a great > deal! The test that Dennis suggested, flipping the bright light switch > while the headlamp switch is on revealed that the fault is evidently a > ground as Dennis suggested. All four lamps lit when the bright switch was > pulled. I'll try to fix that myself later today. > > > > Thanks again, mcneely > > > > On Sun, Aug 23, 2020 at 8:50 AM Dennis Haynes <d23haynes57@hotmail.com > <mailto:d23haynes57@hotmail.com>> wrote: > > Of the upgrades that give me pause headlight relays, high power bulbs > and starter assist relays are amongst them. In general they add failure > points and hide other issues. > > > > With your headlight outage the proper approach at time of failure would > have been to get a meter or at least a test light and do some diagnostics. > Did you loose power or the ground? Changing the bulbs you moved things and > maybe the bad connection is now made, only to fail again. > > > > As for headlight relays yes depending on how they are wired take to load > off the X contact on the ignition switch and take the load off the > headlight switch but that is all. Especially with the 4 headlight systems > the wiring to the headlights is not addressed and this especially includes > the Ground. The headlights for both sides go back to a single quick slide > connector to one of the start grounds above the fuse box. If you are trying > light 4-100watt bulbs you are looking at a 40 amp load on a connector that > had all it can do to handle the original 20 amp load. Keep in mind that > with lamps when the voltage can’t be maintained under load the current draw > will go up due to the filament not maintain temperature. > > > > Not only do relays not correct the ground or the wiring and connectors > to the lamps they also do not address the complete current path from the > alternator to the battery and then the battery to the vehicle loads. > > > > As for the high wattage bulbs, consider that for 4 lamp system you can > be using 400 watts just for headlights, 1/2 your alternator theoretical > capacity. If your radiator fan needs to run at the highest speed you need > 540 watts for that. If the AC or heater fans are also on the alternator is > now overloaded. > > > > Getting back to the possible headlight ground failure, this needs to > inspected and corrected. Tings are crowded there and I have seen this > failure cause an under dash fire. Also inspect the ground for the radiator > fan. Move them to new ground points near the lamps or fan use something > more substantial then a sheet metal screw and for the wire connectors use > something that will also seal the wire strands from the elements. > > > > Dennis > > > > > > -----Original Message----- > > From: Vanagon Mailing List <vanagon@gerry.vanagon.com<mailto: > vanagon@gerry.vanagon.com>> On Behalf Of Jeff Palmer > > Sent: Saturday, August 22, 2020 6:30 PM > > To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM> > > Subject: Re: headlamps > > > > Yes, the Bus Depot setup. I am happy with it. > > Jeff > > > > Sent from my iPhone > > > >> On Aug 22, 2020, at 3:36 PM, Eric Caron <ericcaron96@comcast.net > <mailto:ericcaron96@comcast.net>> wrote: > >> > >> Hi Jeff, > >> > >> Is this the set up from Bus Depot? > >> > >> I’m currently using that as well with the stronger bulbs. > >> > >> I’ll need to find my spares to keep in the bus once it is home. I was > carrying both spare high wattage and low and after your experience that > seems like a good idea. > >> > >> Eric > >> > >> > >>> On Aug 22, 2020, at 1:13 PM, Jeff Palmer <w.jeff.palmer@ICLOUD.COM > <mailto:w.jeff.palmer@ICLOUD.COM>> wrote: > >>> > >>> Strangely enough both my headlights failed on the same trip. High and > low beams. They were the high power bulbs that I use with the relay. I put > in the old low power bulbs and they worked. Odd. > >>> > >>> Jeff > >>> 85 Westfalia > >>> > >>> Sent from my iPhone > >>> > >>>>> On Aug 22, 2020, at 12:25 AM, Dennis Haynes <d23haynes57@hotmail.com > <mailto:d23haynes57@hotmail.com>> wrote: > >>>> > >>>> Try lifting lever for high beams. If still no go the ground probably > failed. All 4 lights use a common quick slide connector on one of the star > wheels above the fuse box. Easy fix is to just connect the grounds at the > lights using a ring terminal under one of the screws holding the light > bracket to the body. > >>>> > >>>> Dennis > >>>> > >>>> > >>>> -----Original Message----- > >>>> From: Vanagon Mailing List <vanagon@gerry.vanagon.com<mailto: > vanagon@gerry.vanagon.com>> On Behalf Of David McNeely > >>>> Sent: Saturday, August 22, 2020 12:58 AM > >>>> To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM> > >>>> Subject: headlamps > >>>> > >>>> What is the most likely reason for the headlamps on my 1991 > Volkswagen Vanagon GL Campmobile to be kaput? All other lamps work, > headlights do not. Just started this. > >>>> > >>>> Not a fuse, unless 4 bad at once, not likely. Switch? Is there a > relay that can go bad? > >>>> > >>>> Thanks in advance, mcneely > >> >
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