Hi Mike, Thank you, that all makes sense. A switch to put the filaments in series appeals to me as an electrical type more than the resistor idea.
Yes my Mog is a transition vehicle, it has caught me and dealers out several times. It is the last of the short door 4/4s (mid-1997) with some fittings usually only found on the following early long door cars (mine has a powder coated bulkhead, not stainless steel). The pilot bulbs are wired at the headlight and their leads go into the harness but from there I don't yet know. I bought the car when it was three years old so there may have been changes during those years. Any information or pictures you may have will be very welcome. I'll take another look under the dash for a black box. I have taken a brief look and found nothing and I'm not a stranger to the tangle under there, but who knows what else is lurking behind the dash? Thanks again, Lawrence -----Original Message----- From: Smith, Mike [mailto:[email protected]] Sent: Friday, April 27, 2012 2:12 PM To: mogtalk2 Subject: RE: [mogtalk2]side lights Earlier vehicles had a resistor that was placed in series with the headlamp bulb in order to reduce the voltage across the bulb, and hence reduce the light output. The problem with this solution is that the resistor will get hot and you need to make sure it can 'sink' the heat away. Hence they are usually under the bonnet where they can be cooled, it won't set light to sat navs trousers Later vehicles such as my 95 +8 had this 'relay' module that places the dip beams in series, thus halving the current, quarter the power, and somewhat less than a quarter of the light output from the bulb In addition to the explanation I posted on Moganatica I do have a few photographs somewhere on my network store, I will have a look tonight The odd thing about your installation is that I believe you reported that the headlamps had pilot bulbs, which would not have been necessary in the case of dim/dip. Are these pilot bulbs wired up ? or is it a set of replacement headlamps which have pilot bulbs which are not wired ? could of course be a transition period in the Morgan works, later headlamps, but an earlier harness. These later dim dip relays are up behind the dash ? just a fairly anonymous black box about the size of a cigarette packet. Best wishes Mike Smith ------------------------------------------- View posts on The Mail Archive http://www.mail-archive.com/[email protected]/ [http://www.mail-archive.com/[email protected]/] Modify Your Subscription: https://www.listbox.com/member/?member_id=22459785&id_secret=22459785-4a39ddf8 Powered by Listbox: http://www.listbox.com
