tims31
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| posted on 23/4/16 at 03:04 PM |
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Remove Sierra Stalk hazard switch
I’m looking at the possibility of putting my Acewell Digi dash behind the steering wheel but currently the hazard switch on the Sierra stalks is
sticking up and in the field of view, can anyone let me know how easy it is to rewire in a separate hazard switch to replace the one on the sierra
stalks?
It is currently using the standard Ford flasher relay and I would like to keep it that way if possible and would like to achieve this with the minimal
mess about of wiring, does anyone have a suitable wiring diagram please?
Build: http://www.martinsfurybuild.co.uk/
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YQUSTA
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| posted on 23/4/16 at 07:37 PM |
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I did this for the same reason when I had my car.
What I did was to remove the cover and bulb from the original switch.
Then I took a feed from the flasher relay to my hazard switch.
Next was from the new switch take two wires and splice them to the feeds to the left and right indicators with diodes to stop feedback from the
indicators when in normal use.
This is what you need to achieve but the colours may not be the same for you as on this diagram.
 
Description
"If in doubt flat out"
Colin McRae
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tims31
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| posted on 25/4/16 at 07:28 AM |
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Ok, thanks for that.
I was a bit confused by the diagram at first but I think you were using Savage switches for the indicators and one for the hazards too. I'll
have to ave a look at how mine are wired onto my Premier loom and see how best to replicate this.
Build: http://www.martinsfurybuild.co.uk/
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tims31
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| posted on 29/6/16 at 05:27 PM |
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Well I finally managed to get round to wiring in the Durite hazard switch in place of the one on top of the Sierra stalk unit so I can fit my Digi
dash unit behind the steering wheel.
I have attached a a diagram so others can see how the wring is done as I know the question has come up before. Just be aware that there various
different types of stalk switches for the Sierra stalks so just double check that the pins and switching is the same.
Also note that there was no need to use diodes to get this to work
Hope it helps
[Edited on 29/6/16 by tims31]
[Edited on 29/6/16 by tims31]
Build: http://www.martinsfurybuild.co.uk/
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rj
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| posted on 29/6/16 at 05:45 PM |
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I cut down my Sierra hazard switch, pulled the red bit off, cant remember if I cut down the red bit, the black bit or both - just gave me the extra
clearance I needed
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Mash
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| posted on 29/6/16 at 07:08 PM |
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Did you use the original flasher relay Tims ?
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tims31
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| posted on 29/6/16 at 08:16 PM |
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Yep, the one out of the Sierra. I'll get the details off of it tomorrow and post them up
Build: http://www.martinsfurybuild.co.uk/
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Mash
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| posted on 29/6/16 at 08:31 PM |
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Cheers.
I reckon this could be the answer to my problems 
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tims31
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| posted on 30/6/16 at 04:31 PM |
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Here's a picture of the flasher unit I used
 
Description
HTH
Build: http://www.martinsfurybuild.co.uk/
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Mash
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| posted on 30/6/16 at 05:16 PM |
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Excellent, need to get the durite switch now
Cheers
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tims31
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| posted on 30/6/16 at 05:42 PM |
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I'm lucky, these people are round the corner from me but they do post out.
AGM Electrical
HTH
Build: http://www.martinsfurybuild.co.uk/
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Mash
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| posted on 7/7/16 at 05:06 PM |
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Hi Tims,
Thanks for all your help thus far, but I just wondered if you could help me a little more, or anyone else who knows the answer.
I presume from your posts that you are retaining the sierra indicator switch, but I want to ditch it altogether.
What I want to know, is if I wire the hazard switch as per your diagram, and then use a simple on-off-on toggle switch connected to the left, right
nad supply pins of the sierra connector, will it work. You're probably all thinking I'm stupid, but electrics isn't my strongest
suit, and I have searched this topic before, and also asked some questions but the results of both have just confused me.
I currently have an ordinary 2 pole on-off switch for the hazards, and a toggle for the indicators, but wired through two relays as well as the
flasher to stop hazards flashing when the indicators are operated, and it's very complicated.
This is the first stage of getting rid of the sierra stalks altogether.........
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tims31
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| posted on 7/7/16 at 06:27 PM |
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quote:
Originally posted by Mash
Hi Tims,
Thanks for all your help thus far, but I just wondered if you could help me a little more, or anyone else who knows the answer.
I presume from your posts that you are retaining the sierra indicator switch, but I want to ditch it altogether.
What I want to know, is if I wire the hazard switch as per your diagram, and then use a simple on-off-on toggle switch connected to the left, right
nad supply pins of the sierra connector, will it work. You're probably all thinking I'm stupid, but electrics isn't my strongest
suit, and I have searched this topic before, and also asked some questions but the results of both have just confused me.
I currently have an ordinary 2 pole on-off switch for the hazards, and a toggle for the indicators, but wired through two relays as well as the
flasher to stop hazards flashing when the indicators are operated, and it's very complicated.
This is the first stage of getting rid of the sierra stalks altogether.........
I cant say that the electrics is my strong point either but I had a bit of help from Alan at Premier wiring where I got my loom from.
Yes I am retaining the Sierra stalks for the indicators. Not sure for certain but yes you will need the L and R supply for the indicators but also
need to retain the feed from pin 49 to the switching side of the relay otherwise you will not get the switching/flashing I'm pretty sure but
stand to be corrected. How you would wire that I'm not sure but check on the switch you are using to select the indicators. If you have three
pins then sure it would be simple to wire one to L, one to R and one common.
Build: http://www.martinsfurybuild.co.uk/
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Mash
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| posted on 7/7/16 at 07:19 PM |
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Thanks Mate.
I need to sit down and think about this....
I think what I really need is a picture of how the pins on the back of the switch are connected when the switches are operated, that way I can work
out how to connect my switches up.
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tims31
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| posted on 7/7/16 at 10:05 PM |
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quote:
Originally posted by Mash
Thanks Mate.
I need to sit down and think about this....
I think what I really need is a picture of how the pins on the back of the switch are connected when the switches are operated, that way I can work
out how to connect my switches up.
Something like this I would have thought, Off position and then switched contact either side to select on
 
Description
something like this I think
[Edited on 7/7/16 by tims31]
[Edited on 7/7/16 by tims31]
Build: http://www.martinsfurybuild.co.uk/
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Mash
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| posted on 8/7/16 at 06:23 AM |
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Sorry Mate, when i said back of the switch, I meant Sierra switch.
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nobrakes
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| posted on 10/7/16 at 03:41 PM |
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Sorry for the slight hijack but I've developed an electrical problem which might be related - there's a 12 volt draw showing when
everything is switched off so the battery is going flat after several days standing.
I've a battery isolator switch in the live cable so there shouldn't be power to anything when its off apart from the indicators/hazards
which have their own live feed straight from the battery and by removing fuses I've confirmed this.
The 49a terminal on my 19FL flasher unit is always showing 6 volts - is this right, should I see any voltage if the indicators or hazards aren't
turned on?
I suspect the fault is somewhere else because the 6 volts must be going somewhere but it'd be nice to know if I'm hunting 2 faults - the
flasher unit and another problem or just a short somewhere.
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rusty nuts
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| posted on 10/7/16 at 03:50 PM |
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quote:
Originally posted by nobrakes
Sorry for the slight hijack but I've developed an electrical problem which might be related - there's a 12 volt draw showing when
everything is switched off so the battery is going flat after several days standing.
I've a battery isolator switch in the live cable so there shouldn't be power to anything when its off apart from the indicators/hazards
which have their own live feed straight from the battery and by removing fuses I've confirmed this.
The 49a terminal on my 19FL flasher unit is always showing 6 volts - is this right, should I see any voltage if the indicators or hazards aren't
turned on?
I suspect the fault is somewhere else because the 6 volts must be going somewhere but it'd be nice to know if I'm hunting 2 faults - the
flasher unit and another problem or just a short somewhere.
disconnect the wiring fom the indicator switch, if that is at fault the 12v draw should be gone. It could be the hazard switch is shorting out
especially if it has got wet at any time, a squirt of contact cleaner or WD 40 may help ?, worked on mine. I know of a couple of cars using Sierra
switches that have suffered a 12v draw
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nobrakes
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| posted on 11/7/16 at 10:40 AM |
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Thanks for the reply, I'm using 1980's Honda motorcycle handlebar switches rather than Sierra parts but I'll try it anyway and see
what happens.
The switch (a Lucas unit, I think most BL cars used to use them?) does get wet occasionally and I did remove it recently to clean up the contacts
because it wasn't always working on first pull of the knob (the tester pointed this out on the last MOT) - I've a spare so I'll
clean it up and try swapping it over after the MOT this week - won't it be nice if its that easy to fix 
Edit: I found another 19FL flasher (labelled Lucas not Ford) in my stash of electrical-stuff-that-will-come-in-handy-one-day bin and it has the same
continuous 6 volts out as the Ford one so is ok - unless they've both got the same fault!
[Edited on 11/7/16 by nobrakes]
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