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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 704

United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
Defender Security - Immobilise via inertia switch
I was pondering how to make the 110 a bit harder to steal and the inertia switch under the bonnet came to mind.

If I was to intersect one of the wires e.g. power or earth and run it back to the cab, could a simple on-off switch hidden from view inside prevent the vehicle from being started with the switch in the off position or is it a bit more technical than that?

It's a late TD5 if that makes a difference.

Thanks, Harry 2005 Td5 110 Hardtop
1989 300Tdi 90 Soft top
1992 200Tdi 90 Truck cab with Land Cruiser axles
Post #690152 2nd Mar 2018 8:10am
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meeerrrk



Member Since: 12 Feb 2017
Location: Surrey
Posts: 548

United Kingdom 2010 Defender 90 Puma 2.4 HT Stornoway Grey
yes, there is a thread on it, let me find it for you My 90 Project : http://www.defender2.net/forum/topic52774.html
Post #690166 2nd Mar 2018 8:54am
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meeerrrk



Member Since: 12 Feb 2017
Location: Surrey
Posts: 548

United Kingdom 2010 Defender 90 Puma 2.4 HT Stornoway Grey
Post #690167 2nd Mar 2018 8:56am
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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 704

United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
Thanks Meeerrrk, I didn't have much luck with a search, then realised after posting that I'd spelt inertia wrong Embarassed 2005 Td5 110 Hardtop
1989 300Tdi 90 Soft top
1992 200Tdi 90 Truck cab with Land Cruiser axles
Post #690178 2nd Mar 2018 9:36am
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 1994

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
I've sent you a PM Harry Thumbs Up
Post #690331 2nd Mar 2018 7:45pm
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Harry.O



Member Since: 25 Jul 2014
Location: Warwickshire
Posts: 704

United Kingdom 1989 Defender 90 300 Tdi ST Nato Green
Thank you very much Screbble Thumbs Up 2005 Td5 110 Hardtop
1989 300Tdi 90 Soft top
1992 200Tdi 90 Truck cab with Land Cruiser axles
Post #691230 5th Mar 2018 6:34pm
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Screbble



Member Since: 26 Apr 2015
Location: Lancashire
Posts: 1994

United Kingdom 2004 Defender 90 Td5 XS CSW Zambezi Silver
You're welcome Harry Thumbs Up
Post #691237 5th Mar 2018 6:48pm
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nicks



Member Since: 21 Aug 2008
Location: south coast
Posts: 469

United Kingdom 2013 Defender 110 Puma 2.2 XS CSW Alaska White
Post #691399 6th Mar 2018 10:39am
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nitram17



Member Since: 08 Jun 2014
Location: newcastle
Posts: 2260

They got the idea of someone of here.. think it would cost around10--15 quid to source the components yourself as a one off so I font mind the profit margin...what I do think they could improve it. By increasing the length of the y connector to make it easier to hide.....as if spotted its a case of swapsy and there off... It will stop the dumb theif
Post #691475 6th Mar 2018 4:36pm
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myonehere



Member Since: 03 Mar 2009
Location: Worcester uk
Posts: 153

2007 Defender 90 Puma 2.4 HT Cairns Blue
"...what I do think they could improve it. By increasing the length of the y connector to make it easier to hide.....as if spotted its a case of swapsy and there off... It will stop the dumb thief"

Although, getting the plug off [and back on] the inertia switch was/is a bu**er of a job and, on mine, required unscrewing the switch itself. Only a thief with tiny, strong, triple joined hands could manage to swap back, I feel... but then again, they can be clever bu**ers
Post #691483 6th Mar 2018 5:16pm
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nitram17



Member Since: 08 Jun 2014
Location: newcastle
Posts: 2260

I dont know if the switch is open or closed when not engaged so someone who knows may comment on what happens if you simply pull out the wires from the inertia switch and join the ends thus making a circuit?Its always best to hide your security devices the best you can..prererably in plain sight!
Post #691631 7th Mar 2018 2:11am
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macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
Has anyone using this method noticed it may take longer before the engine can be started? Someone over here said so and he was annoyed by it.
Post #694175 17th Mar 2018 9:35pm
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ssg



Member Since: 01 Mar 2018
Location: North East
Posts: 65

United Kingdom 
I have just fitted one of these switches, easy job, getting the switch end of the wiring into the passenger compartment was a bit of a pain. The switch doesn't affect starting unless it's off which does take a while to restart once reactivated. I am going to relocate the valve in the engine bay as an extra precaution.
Post #695266 21st Mar 2018 7:08pm
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macfrank



Member Since: 05 Nov 2015
Location: somewhere in the north
Posts: 983

Germany 2015 Defender 110 Puma 2.2 SW Keswick Green
Thank you! How long approx. is "a while"? Smile
Post #695304 21st Mar 2018 8:59pm
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ssg



Member Since: 01 Mar 2018
Location: North East
Posts: 65

United Kingdom 
Unused some red solid copper coded wire taped to the actual wiring loom and pushed it downward through the bulk head grommet until I could see it through the fuse box appeture, then pulled the cable through. Complete job took about 30 mins in total, just an bit Ridley making the y connection and then finding the red wire to pull through.
Post #695312 21st Mar 2018 9:10pm
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