Dim headlight and electrical burning smell....
Dim headlight and electrical burning smell....
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Discussion

debaron

Original Poster:

878 posts

226 months

Sunday 18th October 2015
quotequote all

Chaps, can anyone explain the headlight wiring on the Chim please?

I have a one dim headlight and a burning smell when they are switched on.

Pretty sure I'll want to re run / upgrade the wiring but not sure where to start.....

Thanks


ukdj

1,004 posts

213 months

Sunday 18th October 2015
quotequote all
In a word - Pants!

Seriously, the grade of wire used was marginal at best - you got almost as much light out of the wire as you did the bulb!

As you have a burning smell and dim headlights it is probably safe to say that the existing wire has had it and will need replacing, how far back and at which point in the circuit the fault is will need investigating.

I would check the relay/fusebox for evidence of burning/overheating and if all good there you'll need to check out under the dash for issues with the switch and the magic tvr light control black box which has been known to have issues at the connector.

The usual upgrade is to use the existing wiring to switch a new relay which takes it feed directly from the alternator using a more substantial grade of wire, the output of the relay then drives the bulbs at around 14v instead of the usual 10 or so through the original setup, combined with a bulb upgrade (osram nightbreakers etc) will give a much brighter output.

You could always switch to LED lamps as an upgrade once the fault is fixed - check out ChimpOnGas's very informative thread on these.



debaron

Original Poster:

878 posts

226 months

Sunday 18th October 2015
quotequote all
ukdj said:
In a word - Pants!
Thanks fella - do you know of a wiring diagram for the upgrade anywhere? I'm fine with a multimeter and soldering iron but relays scare me!


ukdj

1,004 posts

213 months

Monday 19th October 2015
quotequote all
dont know if anyone has drawn the full diagram, but the business part isnt that difficult see pic below ....




debaron

Original Poster:

878 posts

226 months

Monday 19th October 2015
quotequote all
ukdj said:
dont know if anyone has drawn the full diagram, but the business part isnt that difficult see pic below ....

Thats fab mate thank you. Reckon even I can understand that.


s p a c e m a n

12,074 posts

177 months

Monday 19th October 2015
quotequote all
Have a look at the connector plug on the bulb, you'll probably find it's melted and arcing all over the place, it's not the driest environment behind there and they are quite a few years old. If it is that just cut the wires and crimp new spade connectors on there.

ukdj

1,004 posts

213 months

Monday 19th October 2015
quotequote all
No problem, note this only does the dipped beam, you'll need to replicate this for the high beam too.